[Federal Register Volume 72, Number 140 (Monday, July 23, 2007)]
[Proposed Rules]
[Pages 40090-40094]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E7-14042]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-21470; Directorate Identifier 2003-NM-45-AD]
RIN 2120-AA64


Airworthiness Directives; McDonnell Douglas Model DC-10-10, DC-
10-10F, DC-10-15, DC-10-30 and DC-10-30F (KC-10A and KDC-10) Airplanes; 
Model DC-10-40 and DC-10-40F Airplanes; and Model MD-11 and MD-11F 
Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of 
comment period.

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SUMMARY: The FAA is revising an earlier proposed airworthiness 
directive (AD) for certain McDonnell Douglas Model DC-10-10, DC-10-10F, 
DC-10-15, DC-10-30 and DC-10-30F (KC-10A and KDC-10) airplanes; Model 
DC-10-40 and DC-10-40F airplanes; and Model MD-11 and MD-11F airplanes. 
The original NPRM would have required, for certain airplanes, modifying 
the thrust reverser command wiring of the number 2 engine. For certain 
other airplanes, the original NPRM would have required modifying the 
thrust reverser system wiring from the flight compartment to engines 1, 
2, and 3 thrust reversers. The original NPRM also would have required 
installing thrust reverser locking systems on certain airplanes. The 
original NPRM resulted from a determination that the thrust reverser 
systems on these McDonnell Douglas airplanes do not adequately preclude 
unwanted deployment of a thrust reverser. This action revises the 
original NPRM by revising, for certain airplanes, the requirements for 
the modification of the thrust reverser system wiring from the flight 
compartment to engines 1, 2, and 3 thrust reversers. We are proposing 
this supplemental NPRM to prevent an unwanted deployment of a thrust 
reverser during flight, which could result in reduced controllability 
of the airplane.

DATES: We must receive comments on this supplemental NPRM by August 17, 
2007.

ADDRESSES: Use one of the following addresses to submit comments on 
this supplemental NPRM.
     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: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Fax: (202) 493-2251.
     Hand Delivery: Room W12-140 on the ground floor of the 
West Building, 1200 New Jersey Avenue SE., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    Contact Boeing Commercial Airplanes, Long Beach Division, 3855 
Lakewood Boulevard, Long Beach, California 90846, Attention: Data and 
Service Management, Dept. C1-L5A (D800-0024), for service information 
identified in this proposed AD.

FOR FURTHER INFORMATION CONTACT: Philip C. Kush, Aerospace Engineer, 
Propulsion Branch, ANM-140L, FAA, Los Angeles Aircraft Certification 
Office, 3960 Paramount Boulevard, Lakewood, California 90712-4137; 
telephone (562) 627-5263; fax (562) 627-5210.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to submit any relevant written data, views, or 
arguments regarding this supplemental NPRM. Send your comments to an 
address listed in the ADDRESSES section. Include the docket number 
``Docket No. FAA-2005-21470; Directorate Identifier 2003-NM-45-AD'' at 
the beginning of your comments. We specifically invite comments on the 
overall regulatory, economic, environmental, and energy aspects of this 
supplemental NPRM. We will consider all comments received by the 
closing date and may amend this supplemental NPRM in light of those 
comments.
    We will post all comments submitted, 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 supplemental NPRM. Using the search function 
of that 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 may review the DOT's complete Privacy Act Statement in the 
Federal Register published on April 11, 2000 (65 FR 19477-78), or you 
may visit http://dms.dot.gov.

Examining the Docket

    You may examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Operations office between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The 
Docket Operations office (telephone (800) 647-5527) is located on the 
ground floor of the West Building at the street address stated in the 
ADDRESSES section. Comments will be available in the AD docket shortly 
after the Docket Management System receives them.

Discussion

    We proposed to amend 14 CFR part 39 with a notice of proposed 
rulemaking (NPRM) for an AD (the ``original NPRM'') for certain 
McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30 and DC-
10-30F (KC-10A and KDC-10) airplanes; Model DC-10-40 and DC-10-40F 
airplanes; and Model MD-11 and MD-11F airplanes. The original NPRM was 
published in the Federal Register on June 16, 2005 (70 FR 35049). The 
original NPRM proposed to require, for certain airplanes, modifying the 
thrust reverser command wiring of the number 2 engine. For certain 
other airplanes, the original NPRM proposed to require modifying the 
thrust reverser system wiring from the flight compartment to engines 1, 
2, and 3 thrust reversers. The original NPRM also proposed to require 
installing thrust reverser locking systems on certain airplanes.

Relevant Service Information

    Since we issued the original NPRM, Boeing has issued Boeing Alert 
Service Bulletin MD11-78A007, Revision 4, dated February 22, 2007 
(Boeing Service Bulletin MD11-78-007, Revision 02, dated August 22, 
2001, was referred to as the appropriate source of service information 
for modifying the thrust reverser system wiring from the flight 
compartment to engines 1, 2, and 3 thrust reversers in the original 
NPRM for Model MD-11 and -11F airplanes). Revision 4 of the alert 
service bulletin requires additional work (wire changes in the wing 
root and empennage with metallic lightning overbraid and

[[Page 40091]]

separation of thrust reverser wiring in the empennage) if the 
modification was done in accordance with an earlier issue of the 
service bulletin. The modification includes revising and routing the 
wiring, verifying the proper configuration code, revising the wiring if 
required, and doing a test of the thrust reverser system. We have 
revised paragraphs (c)(3) and (g) of this supplemental NPRM to refer to 
Boeing Alert Service Bulletin MD11-78A007, Revision 4, dated February 
22, 2007.
    We have also reviewed McDonnell Douglas Service Bulletin DC10-78-
060, Revision 01, dated June 30, 2003 (McDonnell Douglas Service 
Bulletin DC10-78-060, dated December 17, 1999, was referred to as a 
concurrent requirement in the original NPRM as required by AD 2001-17-
19). We approved Revision 01 of the service bulletin as an alternative 
method of compliance (AMOC) for the corresponding action in AD 2001-17-
19. We have added Revision 01 of the service bulletin to Table 2 of 
this supplemental NPRM.

Comments

    We have considered the following comments on the original NPRM.

Support for the Original NPRM

    The Air Line Pilots Association supports the original NPRM.

Request To Remove Requirement

    Lufthansa Technik suggests that we avoid the installation of thrust 
reverser locking systems with low reliability rates like those of the 
Model 747-400 airplanes, which require inspection every 1,000 flight 
hours. Lufthansa states that installed systems should not increase the 
maintenance burden with short interval inspections. We infer that the 
commenter requests that we remove the requirement to install thrust 
reverser locking systems on certain airplanes.
    We disagree with the request to remove the requirement to install 
thrust reverser locking systems on certain airplanes specified in this 
supplemental NPRM. The commenter refers to repetitive inspections for 
Model 747-400 series airplanes, and those airplanes are not part of the 
applicability of this supplemental NPRM. However, operators should note 
that repetitive inspections are sometimes required if a terminating 
action is not available. Even though there are some reliability issues 
with certain locking systems, the locks still function to prevent an 
in-flight reverse event. We are not aware of any reliability issues 
with the locking systems on airplanes affected by this supplemental 
NPRM. We have not changed this supplemental NPRM in this regard.

Request To Withdraw Original NPRM

    Northwest Airlines (NWA) states that it is not convinced the 
accomplishment of the modification specified in the original NPRM 
should be mandated. We infer that NWA requests that we withdraw the 
original NPRM. NWA states that the FAA has not demonstrated that the 
reduced controllability from the deployment of a number 2 thrust 
reverser in flight would represent a condition that would prevent 
continued safe flight and landing. NWA states that ADs 2001-05-10 and 
2001-17-19 require operators to install interlocks on the wing engines 
and modify control and indication wiring. NWA concludes that these wing 
thrust reverser modifications have reduced the probability of an unsafe 
condition of the airplane to an acceptable level.
    We do not agree to withdraw the original NPRM. A safety flight 
analysis was conducted by the manufacturer, and it has been determined 
that, in a certain part of the flight envelope, an uncommanded 
deployment of the reverser on the number 2 engine could result in 
reduced controllability of the airplane. In the analysis, the 
separation of the wiring in the number 2 engine will increase this 
margin to an acceptable level of safety. We have determined that an 
unsafe condition exists and that the separation of the wiring must be 
done to ensure continued safety. We have not revised this supplemental 
NPRM in this regard.

Request To Remove Requirements or Supersede Existing ADs

    FedEx requests that we either remove the reference to concurrent 
requirements or supersede the related ADs. FedEx states that concurrent 
McDonnell Douglas Alert Service Bulletin DC10-78A057, Revision 01, 
dated February 18, 1999, is already mandated by AD 2001-05-10, and 
McDonnell Douglas Service Bulletin DC10-78-060, dated December 17, 
1999, is already mandated by AD 2001-17-19. FedEx concludes that these 
two service bulletins are not necessary in the original NPRM and would 
result in redundant compliance tracking unless the original NPRM 
supersedes the related ADs.
    We acknowledge that additional compliance tracking might be 
necessary for affected operators. However, due to the complexity of the 
actions specified in both of those ADs and this supplemental NPRM, we 
do not agree to supersede ADs 2001-05-10 and 2001-17-19. We also do not 
agree to remove McDonnell Douglas Alert Service Bulletin DC10-78A057 
and McDonnell Douglas Service Bulletin DC10-78-060 from the concurrent 
actions specified in this supplemental NPRM. Although operators might 
have already done these service bulletins in accordance with ADs 2001-
05-10 and 2001-17-19, operators that bring an airplane onto the U.S. 
registry must be aware that these service bulletins are prior or 
concurrent requirements to the actions specified in this supplemental 
NPRM.

Request To Delay Releasing an AD

    FedEx requests that we delay releasing an AD that requires the 
actions specified in the original NPRM until after Rohr SB MD-11 54-201 
is available (Rohr Service Bulletin MD-11 54-201, dated November 30, 
1999, was referred to as a concurrent service bulletin in Table 3 of 
the original NPRM). FedEx states that, according to Goodrich, Revision 
1 of the service bulletin is in draft form and that neither Revision 1 
nor the original issue has been issued or released to operators. FedEx 
states that all pertinent service bulletins should be available to 
operators for review.
    We acknowledge that the original issue of the service bulletin was 
not readily available to operators. Since the original NPRM was issued, 
we have reviewed Rohr Service Bulletin MD-11 54-201, Revision 2, dated 
December 12, 2005. The service bulletin specifies the same procedures 
as the original to modify pylon thrust reverser harnesses and the J-
box. We have revised Table 3 of the supplemental NPRM to refer to 
Revision 2. We have also added Rohr Service Bulletin MD-11 54-201, 
dated November 30, 1999, and Rohr Service Bulletin MD-11 54-201, 
Revision 1, dated November 23, 2005, to paragraph (k) of the 
supplemental NPRM in order to give credit for actions done in 
accordance with these service bulletins for the corresponding 
requirements of Table 3 of this supplemental NPRM.

Request To Revise Cost Estimate

    FedEx requests that we revise the cost estimate for the original 
NPRM. FedEx states that it will need 244 work hours per MD-11 airplane, 
with parts costing over $18,750, for a total cost per airplane of over 
$34,600 for the wiring modification. The commenter notes that this 
estimate reflects concurrent requirements and material costs not 
adjusted for inflation and that this estimate does not include taxes, 
contingency fees, consumable materials or the cost of delays and lost 
airlift that will be incurred by operators. The

[[Page 40092]]

commenter notes that increased revenue is lost if an airplane must be 
removed from revenue service on an off-schedule basis and that the 
additional 250 to 300 work hours must be scheduled into scheduled 
maintenance. The commenter concludes that the cost of compliance will 
be higher than the figures published.
    We agree that a cost per MD-11 airplane of $34,600 is a good 
estimate and it corresponds with our estimate in the cost of compliance 
section of this supplemental NPRM for MD-11 airplanes of up to $17,672 
for the main modification and $19,675 for applicable concurrent actions 
for a total of up to $37,374 per airplane.
    We do not agree to revise the cost estimate to include other 
incidental costs, such as delays due to scheduling. Where safety 
considerations allow, we attempt to set compliance times that generally 
coincide with operators' maintenance schedules. However, because 
operators' schedules vary substantially, we cannot accommodate every 
operator's optimal scheduling in each AD. Each AD does allow individual 
operators to request approval for extensions of compliance times, based 
on a showing that the extension will not affect safety adversely as 
specified in the provisions of paragraph (l) of this AD. Therefore, we 
do not consider it appropriate to attribute to the AD the costs 
associated with the type of special scheduling that might otherwise be 
required. We have not changed this supplemental NPRM in this regard.

Request That We Ensure Adequate Parts

    FedEx requests that we ensure that relevant equipment manufacturers 
have an initial stock of materials available that will support U.S. 
operators and prevent any undue delays in completing all fleet 
modifications. FedEx states that the initial supply and replenishment 
of parts and materials affect scheduling and ground time needed to 
complete the modifications.
    We acknowledge that parts availability affects scheduling and 
ground time needed to complete the modifications. We contacted Boeing 
about parts availability in regard to this supplemental NPRM, and have 
confirmed that a sufficient quantity of parts is available. We have not 
changed this supplemental NPRM in this regard.

Clarification of AMOC Paragraph

    We have revised this action to clarify the appropriate procedure 
for notifying the principal inspector before using any approved AMOC on 
any airplane to which the AMOC applies.

Explanation of Change to Costs of Compliance

    After the original NPRM was issued, we reviewed the figures we have 
used over the past several years to calculate AD costs to operators. To 
account for various inflationary costs in the airline industry, we find 
it necessary to increase the labor rate used in these calculations from 
$65 per work hour to $80 per work hour. The cost impact information, 
below, reflects this increase in the specified hourly labor rate.

FAA's Determination and Proposed Requirements of the Supplemental NPRM

    Certain changes discussed above expand the scope of the original 
NPRM; therefore, we have determined that it is necessary to reopen the 
comment period to provide additional opportunity for public comment on 
this supplemental NPRM.

Costs of Compliance

    There are about 612 airplanes of the affected designs in the 
worldwide fleet. This proposed AD would affect about 245 airplanes of 
U.S. registry. The following tables provide the estimated costs for 
U.S. operators to comply with this proposed AD, for the applicable 
actions, at an average hourly labor rate of $80.

                    Cost for Wiring Modification/Thrust Reverser Locking System Installation
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                                                                                     Number of
                                                                       Cost per        U.S.-
            Action                Work hours           Parts           airplane      registered     Fleet cost
                                                                                     airplanes
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Modify wiring (Model DC-10-    34..............  $1,562..........  $4,282.........           40  $171,280.
 10, DC-10-10F, DC-10-15, DC-
 10-30 and DC-10-30F (KC-10A
 and KDC-10) airplanes).
Modify wiring (Model DC-10-40  34..............  $5,238..........  $7,958.........           45  $358,110.
 and DC-10-40F airplanes).
Modify wiring (Model MD-11     Between 124 and   Between $11,912   Between $21,832          160  Between
 and -11F airplanes).           192.              and $17,672.      and $33,032.                  $3,493,120 and
                                                                                                  $5,285,120.
Install thrust reverser        218.............  Between $165,535  Between                   45  Between
 locking system (Model DC-10-                     and $207,792.     $182,975 and                  $8,233,875 and
 40 and DC-10-40F airplanes).                                       $225,232.                     $10,135,440.
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                                             Cost of Concurrent Actions for Model MD-11 and MD-11F Airplanes
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                                                                                                               Number of U.S.
               Action                      Work hours                Parts            Cost per airplane     registered airplanes        Fleet cost
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Update program software, as          2.....................  None.................  $160.................  Up to 160............  Up to $25,600.
 applicable.
Modify wing pylon harnesses, as      100...................  $5,268...............  $13,268..............  Up to 160............  Up to $2,122,880.
 applicable.
Modify pylon thrust reverser         Between 82 and 192....  Between $10,472 and    Between $17,032 and    Up to 160............  Up to $5,017,440.
 harnesses and J-box, as applicable.                          $15,999.               $31,359.
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[[Page 40093]]

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

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 supplemental NPRM and placed it in the AD docket. 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 Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

McDonnell Douglas: Docket No. FAA-2005-21470; Directorate Identifier 
2003-NM-45-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by August 
17, 2007.

Affected ADs

    (b) None.

Applicability

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

                         Table 1.--Applicability
------------------------------------------------------------------------
      McDonnell Douglas airplane--              As identified in--
------------------------------------------------------------------------
(1) Model DC-10-10, DC-10-10F, DC-10-    Boeing Service Bulletin DC10-78-
 15, DC-10-30 and DC-10-30F (KC-10A and   066, Revision 01, dated
 KDC-10) airplanes.                       November 30, 2001.
(2) Model DC-10-40 and DC-10-40F         Boeing Service Bulletin DC10-78-
 airplanes.                               067, dated October 30, 2002.
(3) Model MD-11 and MD-11F airplanes...  Boeing Alert Service Bulletin
                                          MD11-78A007, Revision 4, dated
                                          February 22, 2007.
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD was prompted by a determination that the thrust 
reverser systems on these McDonnell Douglas airplanes do not 
adequately preclude unwanted deployment of a thrust reverser. We are 
issuing this AD to prevent an unwanted deployment of a thrust 
reverser during flight, which could result in 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.

Wiring Modification

    (f) For Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, and DC-
10-30F (KC-10A and KDC-10) airplanes: Within 60 months after the 
effective date of this AD, modify the thrust reverser command wiring 
of the number 2 engine by doing all the actions specified in the 
Accomplishment Instructions of Boeing Service Bulletin DC10-78-066, 
Revision 01, dated November 30, 2001.
    (g) For Model MD-11 and MD-11F airplanes: Within 60 months after 
the effective date of this AD, modify the thrust reverser system 
wiring from the flight compartment to engines 1, 2, and 3 thrust 
reversers by doing all the actions specified in the Accomplishment 
Instructions of Boeing Alert Service Bulletin MD11-78A007, Revision 
4, dated February 22, 2007.

Wiring Modification/Installation of Thrust Reverser Locking System

    (h) For Model DC-10-40 and DC-10-40F airplanes: Within 60 months 
after the effective date of this AD, modify the thrust reverser 
command wiring of the number 2 engine by doing all the actions 
specified in the Accomplishment Instructions of Boeing Service 
Bulletin DC10-78-067, dated October 30, 2002, and install thrust 
reverser locking systems by doing all the applicable actions 
specified in the Accomplishment Instructions of McDonnell Douglas 
Service Bulletin DC10-78-064, dated June 24, 2003.

Prior or Concurrent Actions

    (i) For Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, and DC-
10-30F (KC-10A and KDC-10) airplanes: Prior to or concurrently with 
the actions required by paragraph (f) of this AD, do the actions 
specified in Table 2 of this AD.

[[Page 40094]]



Table 2.--Prior or Concurrent Actions for Model DC-10-10, DC-10-10F, DC-
      10-15, DC-10-30, and DC-10-30F (KC-10A and KDC-10), Airplanes
------------------------------------------------------------------------
            Do--                  Required by--     In accordance with--
------------------------------------------------------------------------
Repetitive detailed visual    Paragraphs (c) and    McDonnell Douglas
 inspections, functional       (i) of AD 2001-05-    Alert Service
 checks, and torque checks     10, amendment 39-     Bulletin DC10-
 of the thrust reverser        12147.                78A057, Revision
 systems, and applicable                             01, dated February
 corrective actions.                                 18, 1999.
A modification of the         Paragraph (a) of AD   McDonnell Douglas
 indication light system for   2001-17-19,           Service Bulletin
 the thrust reversers.         amendment 39-12410.   DC10-78-060, dated
                                                     December 17, 1999;
                                                     or McDonnell
                                                     Douglas Service
                                                     Bulletin DC10-78-
                                                     060, Revision 01,
                                                     dated June 30,
                                                     2003.
------------------------------------------------------------------------

    (j) For Model MD-11 and MD-11F airplanes: Prior to or 
concurrently with the actions required by paragraph (g) of this AD, 
do the actions specified in Table 3 of this AD.

    Table 3.--Prior or Concurrent Actions for Model MD-11 and MD-11F
                                Airplanes
------------------------------------------------------------------------
                  Do--                         In accordance with--
------------------------------------------------------------------------
An update of the program software of     McDonnell Douglas Service
 display electronic units.                Bulletin MD11-31-091, dated
                                          November 5, 1998.
A modification of the wing pylon         Rohr Service Bulletin MD-11 54-
 harnesses.                               200, Revision 1, dated May 14,
                                          2001.
A modification of the pylon thrust       Rohr Service Bulletin MD-11 54-
 reverser harnesses and J-box.            201, Revision 2, dated
                                          December 12, 2005.
------------------------------------------------------------------------

Actions Accomplished According to Previous Issues of Service Bulletins

    (k) Actions accomplished before the effective date of this AD 
according to Boeing Service Bulletin DC10-78-066, dated March 6, 
2001; Rohr Service Bulletin MD-11 54-201, dated November 30, 1999; 
or Rohr Service Bulletin MD-11 54-201, Revision 1, dated November 
23, 2005; are considered acceptable for compliance with the 
applicable corresponding actions specified in this AD.

Alternative Methods of Compliance (AMOCs)

    (l)(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) To request a different method of compliance or a different 
compliance time for this AD, follow the procedures in 14 CFR 39.19. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your appropriate principal inspector (PI) in the FAA 
Flight Standards District Office (FSDO), or lacking a PI, your local 
FSDO.

    Issued in Renton, Washington, on July 11, 2007.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E7-14042 Filed 7-20-07; 8:45 am]
BILLING CODE 4910-13-P