[Federal Register Volume 69, Number 171 (Friday, September 3, 2004)]
[Proposed Rules]
[Pages 53848-53853]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-20122]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-18998; Directorate Identifier 2003-NM-253-AD]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 737-200, 737-300, 737-400, 
737-500, 737-600, 737-700, 737-800, 737-900, 757-200, and 757-300 
Series Airplanes; and McDonnell Douglas Model DC-10-10, DC-10-10F, DC-
10-30, DC-10-30F, DC-10-40, MD-10-10F, MD-10-30F, MD-11, and MD-11F 
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: The FAA proposes to supersede an existing airworthiness 
directive (AD) that applies to certain transport category airplanes. 
That AD currently requires modification of the reinforced flight deck 
door. This proposed AD would expand the applicability of the existing 
AD and require other actions related to the reinforced flight deck 
door. These other actions include modifying the door, inspecting and 
modifying wiring in the area, and revising the maintenance program to 
require more frequent testing of the decompression panels of the flight 
deck door. This proposed AD is prompted by reports of discrepancies 
with the reinforced flight deck door. We are proposing this AD to 
prevent inadvertent release of the decompression latch and consequent 
opening of the decompression panel in the flight deck door, or 
penetration of the flight deck door by smoke or shrapnel, any of which 
could result in injury to the airplane flightcrew. This proposed AD 
would also find and fix wire chafing, which could result in arcing, 
fire, and/or reduced controllability of the airplane.

DATES: We must receive comments on this proposed AD by October 18, 
2004.

ADDRESSES: Use one of the following addresses to submit comments on 
this proposed AD.
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, room PL-401, 
Washington, DC 20590.
     Fax: (202) 493-2251.
     Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-
2207; or C & D Aerospace, 5701 Bolsa Avenue, Huntington Beach, 
California 92647-2063.
    You can examine the contents of this AD docket on the Internet at 
http://dms.dot.gov, or at the Docket Management Facility, U.S. 
Department of Transportation, 400 Seventh Street SW., room PL-401, on 
the plaza level of the Nassif Building, Washington, DC.

FOR FURTHER INFORMATION CONTACT: Ron Atmur, Aerospace Engineer, 
Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification 
Office, 3960 Paramount Boulevard, Lakewood,

[[Page 53849]]

California 90712-4137; telephone (562) 627-5224; fax (562) 627-5210.

SUPPLEMENTARY INFORMATION:

Docket Management System (DMS)

    The FAA has implemented new procedures for maintaining AD dockets 
electronically. As of May 17, 2004, new AD actions are posted on DMS 
and assigned a docket number. We track each action and assign a 
corresponding directorate identifier. The DMS AD docket number is in 
the form ``Docket No. FAA-2004-99999.'' The Transport Airplane 
Directorate identifier is in the form ``Directorate Identifier 2004-NM-
999-AD.'' Each DMS AD docket also lists the directorate identifier 
(``Old Docket Number'') as a cross-reference for searching purposes.

Comments Invited

    We invite you to submit any written relevant data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed under ADDRESSES. Include ``Docket No. FAA-2004-18998; 
Directorate Identifier 2003-NM-253-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the proposed AD. We will 
consider all comments received by the closing date and may amend the 
proposed AD in light of those comments.
    We will post all comments we receive, without change, to http://dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this proposed AD. Using the search function of our 
docket Web site, anyone can find and read the comments in any of our 
dockets, including the name of the individual who sent the comment (or 
signed the comment on behalf of an association, business, labor union, 
etc.). You can review the DOT's complete Privacy Act Statement in the 
Federal Register published on April 11, 2000 (65 FR 19477-78), or you 
can visit http://dms.dot.gov.
    We are reviewing the writing style we currently use in regulatory 
documents. We are interested in your comments on whether the style of 
this document is clear, and your suggestions to improve the clarity of 
our communications that affect you. You can get more information about 
plain language at http://www.faa.gov/language and http://www.plainlanguage.gov.

Examining the Docket

    You can examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the DMS receives them.

Discussion

    On July 2, 2003, we issued AD 2003-14-04, amendment 39-13223 (68 FR 
41063, July 10, 2003), for certain Boeing Model 737-200, 737-300, 737-
400, 737-500, 737-600, 737-700, 737-800, 737-900, 757-200, and 757-300 
series airplanes; and McDonnell Douglas Model DC-10-10F, DC-10-30, DC-
10-30F, DC-10-40, MD-10-30F, MD-11, and MD-11F airplanes. That AD 
requires modification of the reinforced flight deck door installed on 
the airplane. That AD was prompted by several reports of incidents 
involving the reinforced flight deck door on certain Boeing Model 737-
300, 737-500, 737-800, and 757-200 series airplanes. We issued that AD 
to prevent inadvertent release of the decompression latch and 
consequent opening of the decompression panel in the flight deck door. 
If an airplane crewmember is in close proximity to the flight deck door 
when the decompression panel opens, the decompression panel could hit 
and injure the crewmember.

Actions Since Existing AD Was Issued

    Since we issued AD 2003-14-04, we have made these determinations:
     Some subject airplanes may have been excluded from AD 
2003-14-04's applicability. The requirements of that AD should apply to 
any airplane that has an affected reinforced flight deck door installed 
under certain supplemental type certificates (STC), not just those 
airplanes listed in the service bulletins that AD 2003-14-04 
references.
     For Model DC-10, MD-11, and MD-11F series airplanes, the 
currently required modifications may not prevent inadvertent release of 
the decompression latch and consequent opening of the decompression 
panel in the flight deck door. Installing new, improved latch straps on 
the upper and lower decompression panels on the flight deck door will 
better ensure that a decompression panel does not open inadvertently.
     Based on post-certification testing, other modifications 
are necessary to the reinforced flight deck door. These modifications 
are included in the service information we reference in AD 2003-14-04, 
but we did not previously require them (as explained in the 
``Differences Between This AD and the Service Bulletins'' section of AD 
2003-14-04). Installing an armor plate over the deadbolt area of the 
flight deck door will better protect the door edge and door lip 
extrusion against penetration by bullets. Although the door as 
certified meets the ballistics and intrusion resistance security 
requirements of Section 25.795 (``Security Considerations'') of the 
Federal Aviation Regulations (14 CFR 25.795) (when the door is properly 
closed, latched, and locked), fragments caused by a bullet striking the 
door latch area could enter the flight deck and cause injury to a 
member of the flightcrew. Also, strengthening the smoke screens will 
allow the smoke screens to close properly and prevent smoke from 
entering the flight deck in the event of a fire in the airplane. Smoke 
in the flight deck could hinder the flightcrew's ability to continue to 
fly the airplane safely.
     For certain Model 737 and 757 series airplanes, the 
interval for the repetitive functional test of the decompression panels 
of the reinforced flight deck doors, as established in the original 
issue of the Certification Maintenance Requirements (CMR) document, is 
not conservative enough. More frequent inspections are needed to ensure 
that any failure is found in a timely manner.
     Certain wiring in the area of the flight deck door on 
Model 737-200 series airplanes could be damaged due to, for example, 
chafing against a connector bracket for the flight deck door wiring and 
the flight deck door post. This damage could result in arcing, fire, 
and/or reduced controllability of the airplane.
    These determinations have prompted us to propose the new AD.

Relevant Service Information

    We have reviewed these service bulletins:
     C & D Aerospace Report B22-69, Revision E, dated November 
8, 2002, which applies to certain McDonnell Douglas Model 737 and 757 
series airplanes. That report summarizes the CMRs for the reinforced 
flight deck doors installed on those airplanes. Revision E of that 
report reduces the repetitive interval for functional tests of the 
decompression panels of the flight deck door.

[[Page 53850]]

     C & D Aerospace Service Bulletin B211200-52-02, Revision 
2, dated September 29, 2003, which applies to certain flight deck door 
assemblies installed on certain McDonnell Douglas Model DC-10, MD-10, 
and MD-11 airplanes. (AD 2003-14-04 refers to Revision 1 of that 
service bulletin, dated June 3, 2003, as the appropriate source of 
service information for installing spacers in the upper and lower 
pressure relief latch assemblies.) In addition to the procedures for 
installing spacers in the upper and lower pressure relief latch 
assemblies, that service bulletin describes procedures for installing 
an armor plate in the area of the deadbolt for ballistics 
reinforcement, and installing stiffeners to strengthen the smoke screen 
on the decompression panels.
     C & D Aerospace Service Bulletin B211200-52-01, Revision 
3, dated September 18, 2003, which applies to certain flight deck door 
assemblies installed on certain McDonnell Douglas Models DC-10, MD-11, 
and MD-11F airplanes. That service bulletin describes procedures for 
modifying the upper and lower pressure relief latch assemblies by 
installing new latch straps.
     C & D Aerospace Alert Service Bulletin B221001-52A02, 
dated November 5, 2002, which applies to certain flight deck door 
assemblies installed on certain Boeing Model 737-200 series airplanes. 
That service bulletin describes procedures for inspecting for chafing 
of wire bundles in the area of the flight deck door, and corrective 
actions if necessary. The corrective actions involve rerouting certain 
wiring or reorienting certain brackets, as applicable.
     C & D Aerospace Alert Service Bulletin B221001-52A05, 
Revision 2, dated June 19, 2003, which applies to certain flight deck 
door assemblies installed on certain Boeing Model 737-200 series 
airplanes. That service bulletin describes procedures for reworking 
certain wiring for the flight deck door to relocate a power wire for 
the flight deck door.
     C & D Aerospace Service Bulletin B221200-52-01, Revision 
1, dated June 27, 2003, which applies to certain flight deck door 
assemblies installed on certain Boeing Model 737 and 757 series 
airplanes. That service bulletin describes procedures for installing an 
armor plate in the area of the flight deck door deadbolt for ballistics 
reinforcement.
     C & D Aerospace Alert Service Bulletin B251200-52-01, 
dated April 30, 2003, which applies to certain flight deck door 
assemblies installed on certain Model MD-11 airplanes. That service 
bulletin describes procedures for modifying the flight deck door by 
installing stiffeners to strengthen the smoke screen on the flight deck 
door's decompression panels.
    Doing the actions specified in the applicable service information 
is intended to adequately address the unsafe condition.

FAA's Determination and Requirements of the Proposed AD

    We have evaluated all pertinent information and identified an 
unsafe condition that is likely to exist or develop on other products 
of this same type design. Therefore, we are proposing this AD, which 
would supersede AD 2003-14-04. This proposed AD would continue to 
require modification of the reinforced flight deck door. This proposed 
AD would expand the applicability of the existing AD to include all 
airplanes modified under certain STCs. This proposed AD would require 
you to do the actions in the applicable service information described 
previously, using that same service information, except as discussed 
under ``Differences Between the Proposed AD and Service Information.'' 
This proposed AD would also require you to revise the airplane's 
maintenance program to require repetitive functional testing of the 
decompression panels of the flight deck door at the intervals specified 
in C & D Aerospace Report B22-69, Revision E.

Differences Between the Proposed AD and Service Information

    Although the service bulletins recommend accomplishing the 
modification ``as soon as manpower, facilities, and retrofit kits 
become available,'' or ``as soon as possible,'' we have determined that 
a more specific compliance time is necessary to ensure an adequate 
level of safety for the affected fleet. In developing an appropriate 
compliance time for this AD, we considered the flight deck door 
manufacturer's recommendation, the degree of urgency associated with 
the subject unsafe conditions, the number of affected airplanes in the 
fleet, and the time necessary to perform the modifications. In light of 
all of these factors, we find that 6 months to 18 months, depending on 
the action, represents an appropriate interval of time for affected 
airplanes to continue to operate without compromising safety.
    C & D Aerospace Alert Service Bulletin B221001-52A02 specifies 
inspecting for chafing of wire bundles in the area of the flight deck 
door, but does not specify the type of inspection. Paragraph (l)(2) of 
this proposed AD identifies this inspection as a general visual 
inspection, and Note 2 of this proposed AD defines this inspection.
    Table 3 of this proposed AD specifies that the actions in C & D 
Aerospace Service Bulletin B211200-52-01 must be done on McDonnell 
Douglas Model DC-10-10, DC-10-10F, DC-10-30, DC-10-30F, DC-10-40, MD-
10-10F, MD-10-30F, MD-11, and MD-11F airplanes that are equipped with a 
flight deck door assembly having part number B211200. Though the 
effectivity listing of C & D Aerospace Service Bulletin B211200-52-01 
does not identify all of these models, we find that the subject flight 
deck door assembly is type certificated for all of these models. Thus, 
listing all affected models will ensure that the applicable actions are 
done on all affected airplanes.

Changes to Existing AD

    This proposed AD would retain all requirements of AD 2003-14-04. 
Since AD 2003-14-04 was issued, the AD format has been revised, and 
certain paragraphs have been rearranged. As a result, the corresponding 
paragraph identifiers have changed in this proposed AD, as listed in 
the following table:

                      Revised Paragraph Identifiers
------------------------------------------------------------------------
                                          Corresponding requirement in
     Requirement in AD 2003-14-04               this proposed AD
------------------------------------------------------------------------
Paragraph (a).........................  Paragraph (f).
Paragraph (b).........................  Paragraph (g).
Paragraph (c).........................  Paragraph (h).
------------------------------------------------------------------------

    Also, we have revised paragraph (f)(3) of this proposed AD (which 
was paragraph (a)(3) of the existing AD) to remove the last sentence of 
the paragraph. We have determined that this sentence does not apply to 
the airplanes listed in paragraph (f)(3).

Costs of Compliance

    This proposed AD would affect about 3,423 airplanes worldwide.
    The following table provides the estimated costs for U.S. operators 
to comply with the currently required actions that this proposed AD 
would continue to require, at an average labor rate of $65 per work 
hour.

[[Page 53851]]



                             Estimated Costs: Existing Requirements of AD 2003-14-04
----------------------------------------------------------------------------------------------------------------
                               As Listed in C &                                          Number of
                                  D Aerospace                                Cost per      U.S.-
       Airplane models              Service       Work hours     Parts       airplane    registered   Fleet cost
                                  Bulletin--                                             airplanes
----------------------------------------------------------------------------------------------------------------
737..........................  B221001-52-03,              1           $0          $65        1,040      $67,600
                                Revision 3.
757..........................  B231001-52-02,              2            0          130          519       67,470
                                Revision 4.
DC-10, MD-10, MD-11..........  B211200-52-02,              2            0          130           21        2,730
                                Revision 1.
----------------------------------------------------------------------------------------------------------------

    The following table provides the estimated costs for U.S. operators 
to comply with the new actions that would be required by this proposed 
AD, at an average labor rate of $65 per work hour.

                                                       Estimated Costs: New Proposed Requirements
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per    Number of U.S.-registered
             Airplane models                          Action              Work hours     Parts       airplane            airplanes            Fleet cost
--------------------------------------------------------------------------------------------------------------------------------------------------------
737......................................  Modification in C & D                   1           $0          $65  Unknown: airplanes not               N/A
                                            Aerospace Service Bulletin                                           modified under AD 2003-14-
                                            B221001-52-03, Revision 3.                                           04.
737, 757.................................  Revision of maintenance                 1         None           65  651........................      $42,315
                                            program.
737, 757.................................  Modification in C & D                   1            0           65  1,673......................      108,745
                                            Aerospace Service Bulletin
                                            B221200-52-01, Revision 1.
737-200..................................  Modification in C & D                   1         None           65  134........................        8,710
                                            Aerospace Alert Service
                                            Bulletin B221001-52A05,
                                            Revision 2.
737-200..................................  Inspection in C & D                     2         None          130  134........................       17,420
                                            Aerospace Alert Service
                                            Bulletin B221001-52A02.
757......................................  Modification in C & D                   2            0          130  Unknown: airplanes not               N/A
                                            Aerospace Service Bulletin                                           modified under AD 2003-14-
                                            B231001-52-02, Revision 4.                                           04.
DC-10, MD-11, MD-11F.....................  Modification in C & D                   1            0           65  155........................       10,075
                                            Aerospace Service Bulletin
                                            B211200-52-01, Revision 3.
DC-10, MD-10, MD-11......................  Modification in C & D                   2            0          130  Unknown: airplanes not               N/A
                                            Aerospace Service Bulletin                                           modified under AD 2003-14-
                                            B211200-52-02.                                                       04.
MD-11....................................  Modification in C & D                   1            0           65  6..........................          390
                                            Aerospace Alert Service
                                            Bulletin B251200-52-01.
--------------------------------------------------------------------------------------------------------------------------------------------------------

Regulatory Findings

    We have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that the proposed 
regulation:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD. See the ADDRESSES section for a location 
to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

    1. The authority citation for part 39 continues to read as follows:


    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

    2. The FAA amends Sec.  39.13 by removing amendment 39-13223 (68 FR 
41063, July 10, 2003) and adding the following new airworthiness 
directive (AD):


[[Page 53852]]


Transport Category Airplanes: Docket No. FAA-2004-18998; Directorate 
Identifier 2003-NM-253-AD.

Comments Due Date

    (a) The Federal Aviation Administration must receive comments on 
this airworthiness directive (AD) action by October 18, 2004.

Affected ADs

    (b) This AD supersedes AD 2003-14-04, amendment 39-13223.

Applicability

    (c) This AD applies to the airplanes listed in Table 1 of this 
AD, certificated in any category.

                   Table 1.--Affected Airplane Models
------------------------------------------------------------------------
                                                           Modified by
                                                          Supplemental
     Airplane manufacturer          Airplane model      Type Certificate
                                                              (STC)
------------------------------------------------------------------------
Boeing........................  737-200, -300, -400, -  ST01335LA
                                 500, -600, -700, -
                                 800, and -900 series.
Boeing........................  757-200 and -300        ST9514LA-T
                                 series.
McDonnell Douglas.............  DC-10-10, DC-10-10F,    ST01391LA
                                 DC-10-30, DC-10-30F,
                                 DC-10-40, MD-10-10F,
                                 MD-10-30F, MD-11, and
                                 MD-11F.
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD was prompted by reports of discrepancies with the 
reinforced flight deck door. We are issuing this AD to prevent 
inadvertent release of the decompression latch and consequent 
opening of the decompression panel in the flight deck door, or 
penetration of the flight deck door by smoke or shrapnel, any of 
which could result in injury to the airplane flightcrew. We are also 
issuing this AD to find and fix wire chafing, which could result in 
arcing, fire, and/or reduced controllability of the airplane.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Requirements of AD 2003-14-04

    Note 1: Where there are differences between this AD and the 
referenced service bulletins, this AD prevails.

Modification

    (f) For airplanes listed in Table 2 of this AD: Within 90 days 
after July 25, 2003 (the effective date of AD 2003-14-04, amendment 
39-13223), modify the reinforced flight deck door according to 
paragraph (f)(1), (f)(2), or (f)(3) of this AD, as applicable.

   Table 2.--Airplane Models Subject to Requirements of AD 2003-14-04
------------------------------------------------------------------------
                                                      As listed in C&D
    Airplane manufacturer        Airplane model       Aerospace Service
                                                         Bulletin--
------------------------------------------------------------------------
Boeing......................  737-200, -300, -400,  B221001-52-03,
                               -500, -600, -700, -   Revision 3, dated
                               800, and -900         March 25, 2003.
                               series.
Boeing......................  757-200 and -300      B231001-52-02,
                               series.               Revision 4, dated
                                                     March 19, 2003.
McDonnell Douglas...........  DC-10-10F, DC-10-30,  B211200-52-02,
                               DC-10-30F, DC-10-     Revision 1, dated
                               40, MD-10-30F, MD-    June 3, 2003.
                               11, and MD-11F.
------------------------------------------------------------------------

    (1) For Boeing Model 737-200, -300, -400, -500, -600, -700, -
800, and -900 series airplanes: Modify the upper and lower pressure 
relief latch assemblies on the flight deck door by doing all actions 
specified in and according to paragraphs 3.A., 3.B., and 3.C. of the 
Accomplishment Instructions of C & D Aerospace Service Bulletin 
B221001-52-03, Revision 3, dated March 25, 2003. One latch strap 
should be installed at the bottom of the upper pressure relief 
assembly, and a second latch strap should be installed at the top of 
the lower pressure relief assembly. When properly installed, the 
strap should cover a portion of the latch hook.
    (2) For Boeing Model 757-200 and -300 series airplanes: Modify 
the upper and lower pressure relief latch assemblies on the flight 
deck door by doing all actions specified in and according to 
paragraphs 3.A., 3.B., and 3.C. of the Accomplishment Instructions 
of C & D Aerospace Service Bulletin B231001-52-02, Revision 4, dated 
March 19, 2003. One latch strap should be installed at the bottom of 
the upper pressure relief assembly, and a second latch strap should 
be installed at the top of the lower pressure relief assembly. When 
properly installed, the strap should cover a portion of the latch 
hook.
    (3) For McDonnell Douglas DC-10-10F, DC-10-30, DC-10-30F, DC-10-
40, MD-10-30F, MD-11, and MD-11F airplanes: Install spacers in the 
upper and lower pressure relief latch assemblies of the flight deck 
door, by doing all actions specified in and according to paragraphs 
3.A., 3.C., and 3.D. of C & D Aerospace Service Bulletin B211200-52-
02, Revision 1, dated June 3, 2003; or Revision 2, dated September 
29, 2003.

Modifications Accomplished Per Previous Issues of Service Bulletin

    (g) For airplanes listed in Table 2 of this AD: Modifications 
accomplished before July 25, 2003, per a service bulletin listed in 
paragraph (g)(1), (g)(2), or (g)(3) of this AD; as applicable; are 
considered acceptable for compliance with the corresponding action 
specified in paragraph (f) of this AD.
    (1) For Boeing Model 737-200, -300, -400, -500, -600, -700, -
800, and -900 series airplanes: C & D Aerospace Service Bulletin 
B221001-52-03, dated December 6, 2002; Revision 1, dated January 2, 
2003; or Revision 2, dated February 20, 2003.
    (2) For Boeing Model 757-200 and -300 series airplanes: C & D 
Aerospace Service Bulletin B231001-52-02, dated December 6, 2002; 
Revision 1, dated January 2, 2003; Revision 2, dated February 20, 
2003; or Revision 3, dated March 7, 2003.
    (3) For McDonnell Douglas DC-10-10F, DC-10-30, DC-10-30F, DC-10-
40, MD-10-30F, MD-11, and MD-11F airplanes: C & D Aerospace Service 
Bulletin B211200-52-02, dated April 30, 2003.

Parts Installation

    (h) As of July 25, 2003, no person may install, on any airplane, 
a reinforced flight deck door having any part number listed in the 
paragraph 1.A. of C & D Aerospace Service Bulletin B221001-52-03, 
Revision 3, dated March 25, 2003; B231001-52-02, Revision 4, dated 
March 19, 2003; or B211200-52-02, Revision 1, dated June 3, 2003; as 
applicable; unless the door has been modified as required by 
paragraph (f) of this AD.

New Requirements of This AD

Model 737 and 757 Series Airplanes: Revise Maintenance Program

    (i) For Model 737-200, -300, -400, -500, -600, -700, -800, and -
900 series airplanes; and Model 757-200 and -300 series airplanes: 
Within 6 months after the effective date of this AD, revise the FAA-
approved maintenance inspection program to include the information 
specified in C & D Report

[[Page 53853]]

CDR B22-69, Revision E, dated November 8, 2002.

Modifications to Flight Deck Door

    (j) Modify the reinforced flight deck door by doing all 
applicable actions specified in the applicable service bulletin 
listed in Table 3 of this AD at the applicable compliance time 
specified in that table.

                               Table 3.--New Modifications to the Flight Deck Door
----------------------------------------------------------------------------------------------------------------
                                      Equipped with a flight      Within this compliance      Do all actions in
        For these models--           deck door assembly having   time after the effective    the accomplishment
                                            this P/N--               date of this AD--        instructions of--
----------------------------------------------------------------------------------------------------------------
McDonnell Douglas DC-10-10, DC-10-  B211200                     6 months..................  C & D Aerospace
 10F, DC-10-30, DC-10-30F, DC-10-                                                            Service Bulletin
 40, MD-10-10F, MD-10-30F, MD-11,                                                            B211200-52-01,
 and MD-11F airplanes.                                                                       Revision 3, dated
                                                                                             September 18, 2003.
McDonnell Douglas Model MD-11 and   B251200                     6 months..................  C & D Aerospace
 MD-11F airplanes.                                                                           Alert Service
                                                                                             Bulletin B251200-52-
                                                                                             01, dated April 30,
                                                                                             2003.
Boeing Model 737-200, -300, -400, - B221200                     18 months.................  C & D Aerospace
 500, -600, -700, -800, and -900                                                             Service Bulletin
 series airplanes; and Model 757-                                                            B221200-52-01,
 200 and -300.                                                                               Revision 1, dated
                                                                                             June 27, 2003.
Boeing Model 737-200, -300, -400, - B221001                     18 months.................  C & D Aerospace
 500, -600, -700, -800, and -900                                                             Service Bulletin
 series airplanes.                                                                           B221001-52-03,
                                                                                             Revision 3, dated
                                                                                             March 25, 2003;
                                                                                             except as provided
                                                                                             by paragraph (k) of
                                                                                             this AD.
Boeing Model 757-200 and -300       B231001                     18 months.................  C & D Aerospace
 series airplanes.                                                                           Service Bulletin
                                                                                             B231001-52-02,
                                                                                             Revision 4, dated
                                                                                             March 19, 2003;
                                                                                             except as provided
                                                                                             by paragraph (k) of
                                                                                             this AD.
McDonnell Douglas DC-10-10, DC-10-  B211200                     18 months.................  C & D Aerospace
 10F, DC-10-30, DC-10-30F, DC-10-                                                            Service Bulletin
 40, MD-10-10F, MD-10-30F, MD-11,                                                            B211200-52-02,
 and MD-11F airplanes.                                                                       Revision 1, dated
                                                                                             June 3, 2003; or
                                                                                             Revision 2, dated
                                                                                             September 29, 2003,
                                                                                             except as provided
                                                                                             by paragraph (k) of
                                                                                             this AD.
----------------------------------------------------------------------------------------------------------------

    (k) For airplanes subject to paragraph (f) of this AD: Actions 
required by paragraph (f) of this AD that were done within the 
compliance time specified in paragraph (f) of this AD do not need to 
be repeated in accordance with paragraph (j) of this AD.

Model 737-200 Series Airplanes: Wiring Modification/Inspection

    (l) For Model 737-200 series airplanes equipped with flight deck 
door assembly P/N B221001: Within 18 months after the effective date 
of this AD, do paragraphs (l)(1) and (l)(2) of this AD.
    (1) Rework the wiring for the flight deck door to relocate a 
power wire for the flight deck door, in accordance with the 
Accomplishment Instructions of C & D Aerospace Alert Service 
Bulletin B221001-52A05, Revision 2, dated June 19, 2003.
    (2) Perform a general visual inspection for chafing of wire 
bundles in the area of the flight deck door and applicable 
corrective actions by doing all of the actions in the Accomplishment 
Instructions of C & D Aerospace Alert Service Bulletin B221001-
52A02, dated November 5, 2002. Any applicable corrective actions 
must be done before further flight.
    Note 2: For the purposes of this AD, a general visual inspection 
is ``a visual examination of a interior or exterior area, 
installation or assembly to detect obvious damage, failure or 
irregularity. This level of inspection is made from within touching 
distance unless otherwise specified. A mirror may be necessary to 
ensure visual access to all surfaces in the inspection area. This 
level of inspection is made under normal available lighting 
conditions such as daylight, hangar lighting, flashlight or drop-
light and may require removal or opening of access panels or doors. 
Stands, ladders or platforms may be required to gain proximity to 
the area being checked.''

Parts Installation

    (m) As of the effective date of this AD, no person may install a 
reinforced flight deck door under any STC listed in Table 1 of this 
AD, on any airplane, unless all applicable requirements of this AD 
have been done on the door.

Alternative Methods of Compliance (AMOCs)

    (n)(1) The Manager, Los Angeles Aircraft Certification Office 
(ACO), FAA, has the authority to approve AMOCs for this AD, if 
requested in accordance with the procedures found in 14 CFR 39.19.
    (2) Alternative methods of compliance, approved previously per 
AD 2003-14-04, amendment 39-13223, are approved as alternative 
methods of compliance with this AD.

    Issued in Renton, Washington, on August 25, 2004.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-20122 Filed 9-2-04; 8:45 am]
BILLING CODE 4910-13-P