[Federal Register Volume 68, Number 131 (Wednesday, July 9, 2003)]
[Proposed Rules]
[Pages 40823-40827]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 03-17317]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003-NM-91-AD]
RIN 2120-AA64
Airworthiness Directives; Various Boeing and McDonnell Douglas
Transport Category Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: This document proposes to revise an existing airworthiness
directive (AD), applicable to various Boeing and McDonnell Douglas
transport category airplanes, that currently requires revising the
Airplane Flight Manual (AFM) to advise the flightcrew to don oxygen
masks as a first and immediate step when the cabin altitude warning
horn sounds. The actions specified by that AD are intended to prevent
incapacitation of the flightcrew due to lack of oxygen, which could
result in loss of control of the airplane. This action would remove
certain requirements for certain airplanes and revises the direction to
the flightcrew to don oxygen masks as a first and immediate step when
the cabin altitude warning occurs, rather than ``when the cabin
altitude warning horn sounds.'' This action is intended to address the
identified unsafe condition.
DATES: Comments must be received by August 25, 2003.
ADDRESSES: Submit comments in triplicate to the Federal Aviation
Administration (FAA), Transport Airplane Directorate, ANM-114,
Attention: Rules Docket No. 2003-NM-91-AD, 1601 Lind Avenue, SW.,
Renton, Washington 98055-4056. Comments may be inspected at this
location between 9 a.m. and 3 p.m., Monday through Friday, except
Federal holidays. Comments may be submitted via fax to (425) 227-1232.
Comments may also be sent via the Internet using the following address:
[email protected]. Comments sent via fax or the Internet must
contain ``Docket No. 2003-NM-91-AD'' in the subject line and need not
be submitted in triplicate. Comments sent via the Internet as attached
electronic files must be formatted in Microsoft Word 97 or 2000 or
ASCII text.
This information may be examined at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA,
Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard,
Lakewood, California.
FOR FURTHER INFORMATION CONTACT: Boeing Airplane Models: Don Eiford,
Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA,
Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton,
Washington 98055-4056; telephone (425) 917-6465; fax (425) 917-6590.
McDonnell Douglas Airplane Models: Joe Hashemi, Aerospace Engineer,
Flight Test Branch, ANM-160L, FAA, Los Angeles Aircraft Certification
Office, 3960 Paramount Boulevard, Lakewood, California 90712-4137;
telephone (562) 627-5380; fax (562) 627-5210.
SUPPLEMENTARY INFORMATION:
Comments Invited
Interested persons are invited to participate in the making of the
proposed rule by submitting such written data, views, or arguments as
they may desire. Communications shall identify the Rules Docket number
and be submitted in triplicate to the address specified above. All
communications received on or before the closing date for comments,
specified above, will be considered before taking action on the
[[Page 40824]]
proposed rule. The proposals contained in this action may be changed in
light of the comments received.
Submit comments using the following format:
[sbull] Organize comments issue-by-issue. For example, discuss a
request to change the compliance time and a request to change the
service bulletin reference as two separate issues.
[sbull] For each issue, state what specific change to the proposed
AD is being requested.
[sbull] Include justification (e.g., reasons or data) for each
request.
Comments are specifically invited on the overall regulatory,
economic, environmental, and energy aspects of the proposed rule. All
comments submitted will be available, both before and after the closing
date for comments, in the Rules Docket for examination by interested
persons. A report summarizing each FAA-public contact concerned with
the substance of this proposal will be filed in the Rules Docket.
Commenters wishing the FAA to acknowledge receipt of their comments
submitted in response to this action must submit a self-addressed,
stamped postcard on which the following statement is made: ``Comments
to Docket Number 2003-NM-91-AD.'' The postcard will be date stamped and
returned to the commenter.
Availability of NPRMs
Any person may obtain a copy of this NPRM by submitting a request
to the FAA, Transport Airplane Directorate, ANM-114, Attention: Rules
Docket No. 2003-NM-91-AD, 1601 Lind Avenue, SW., Renton, Washington
98055-4056.
Discussion
On January 24, 2003, the FAA issued AD 2003-03-15, amendment 39-
13039 (68 FR 4892, January 31, 2003), applicable to various Boeing and
McDonnell Douglas transport category airplanes, to require revising the
Airplane Flight Manual (AFM) to advise the flightcrew to don oxygen
masks as a first and immediate step when the cabin altitude warning
horn sounds. The requirements of that AD are intended to prevent
incapacitation of the flightcrew due to lack of oxygen, which could
result in loss of control of the airplane.
Actions Since Issuance of Existing Rule
Since the issuance of that AD, the manufacturer has provided data
to the FAA substantiating that, for the McDonnell Douglas airplanes
specified in AD 2003-15-03, the positive pressure created with the
``Emergency'' setting of the oxygen masks during rapid decompression
events is unnecessary. The ``Emergency'' setting of the oxygen masks
would require the flightcrew to do pressure breathing, which makes it
difficult for the flightcrew to communicate or concentrate.
In addition, the manufacturer also requested that the words ``If
the cabin altitude warning occurs'' be used for the McDonnell Douglas
airplanes specified in AD 2003-15-03 instead of the words currently
used, ``If the cabin altitude warning horn sounds.'' The manufacturer
advised that not all McDonnell Douglas airplanes specified in AD 2003-
15-03 are equipped with cabin altitude warning horns.
Advising the flightcrew to don oxygen masks as a first and
immediate step when the cabin altitude warning occurs is necessary to
prevent incapacitation of the flightcrew due to lack of oxygen, which
could result in loss of control of the airplane.
Explanation of Requirements of Proposed Rule
Since an unsafe condition has been identified that is likely to
exist or develop on other products of this same type design, the
proposed AD would revise AD 2003-03-15 to remove reference to the word
``Emergency'' when specifying ``Crew Oxygen Mask--ON/100%,'' for all
the McDonnell Douglas airplanes specified in that AD.
Additionally, the proposed AD would revise AD 2003-03-15 to specify
that, for all McDonnell Douglas airplanes, the words ``If the cabin
altitude warning occurs'' be used rather than the words, ``If the cabin
altitude warning horn sounds.''
Editorial Changes
An alternative method of compliance (AMOC) was issued for AD 2003-
03-15 on March 12, 2003, for certain McDonnell Douglas airplanes. That
AMOC specified the wording ``for the AD requirement for oxygen masks to
be immediately donned as the first crew action in the event of a rapid
`decompression.' '' However, Figures 4, 5, 6, and 8 in that AMOC
specify the wording ``Cabin Altitude Warning or Rapid
Depressurization.'' Although AD 2003-03-15 uses the wording
decompression in Figures 5, 6, and 7, the FAA has changed that wording
in this NPRM to read ``depressurization'' for Figures 5, 6, and 7 of
this proposed rule. For the purposes of this AD, we consider that there
is no distinction between the meaning of depressurization and the
meaning of decompression. The FAA considers that changing the wording
in those Figures will more clearly align with the ``pressurization''
wording used in the AMOC issued on March 12, 2003. Additionally, such
standardization of the term ``pressurization'' used in the Figures
specified for McDonnell Douglas airplanes should assist operators by
clarifying the requirements of this proposed AD.
Changes to 14 CFR Part 39/Effect on the Proposed AD
On July 10, 2002, the FAA issued a new version of 14 CFR part 39
(67 FR 47997, July 22, 2002), which governs the FAA's airworthiness
directives system. The regulation now includes material that relates to
altered products, special flight permits, and alternative methods of
compliance (AMOC). Because we have now included this material in part
39, we no longer need to include it in each individual AD. However,
this proposed AD identifies the office authorized to issue AMOCs.
Cost Impact
There are approximately 6,956 airplanes (5,179 Boeing airplanes and
1,777 McDonnell Douglas airplanes) of the affected design in the
worldwide fleet. The FAA estimates that 3,601 airplanes (2,392 Boeing
airplanes and 1,209 McDonnell Douglas airplanes) of U.S. registry would
be affected by this proposed AD, that it would take approximately 1
work hour per airplane to accomplish the proposed actions, and that the
average labor rate is $60 per work hour. Based on these figures, the
cost impact of the proposed AD on U.S. operators is estimated to be
$216,060, or $60 per airplane.
The cost impact figure discussed above is based on assumptions that
no operator has yet accomplished any of the proposed requirements of
this AD action, and that no operator would accomplish those actions in
the future if this AD were not adopted. The cost impact figures
discussed in AD rulemaking actions represent only the time necessary to
perform the specific actions actually required by the AD. These figures
typically do not include incidental costs, such as the time required to
gain access and close up, planning time, or time necessitated by other
administrative actions.
Regulatory Impact
The regulations proposed herein 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. Therefore, it
is determined that this proposal
[[Page 40825]]
would not have federalism implications under Executive Order 13132.
For the reasons discussed above, I certify that this 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) if promulgated, 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. A copy of the draft
regulatory evaluation prepared for this action is contained in the
Rules Docket. A copy of it may be obtained by contacting the Rules
Docket at the location provided under the caption ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
The Proposed Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration proposes to amend
part 39 of the Federal Aviation Regulations (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. Section 39.13 is amended by removing amendment 39-13039 (68 FR
4892, January 31, 2003), and by adding a new airworthiness directive
(AD), to read as follows:
Transport Category Airplanes: Docket 2003-NM-91-AD. Revises AD 2003-
03-15, Amendment 39-13039.
Applicability: The airplanes listed in Table 1 of this AD,
certificated in any category:
Table 1.--Affected Airplane Models
------------------------------------------------------------------------
Airplane manufacturer Airplane model
------------------------------------------------------------------------
Boeing.............................. 707 series airplanes.
720 series airplanes.
727 series airplanes.
737-100 series airplanes.
737-200 series airplanes.
737-200C series airplanes.
737-300 series airplanes.
737-400 series airplanes.
737-500 series airplanes.
747-100 series airplanes.
747-100B series airplanes.
747-100B SUD series airplanes.
747-200B series airplanes.
747-200F series airplanes.
747-200C series airplanes.
747-300 series airplanes.
747SR series airplanes.
747SP series airplanes.
McDonnell Douglas................... DC-8-11 airplanes.
DC-8-12 airplanes.
DC-8-21 airplanes.
DC-8-31 airplanes.
DC-8-32 airplanes.
DC-8-33 airplanes.
DC-8-41 airplanes.
DC-8-42 airplanes.
DC-8-43 airplanes.
DC-8-51 airplanes.
DC-8-52 airplanes.
DC-8-53 airplanes.
DC-8F-54 airplanes.
DC-8-55 airplanes.
DC-8F-55 airplanes.
DC-8-61 airplanes.
DC-8-61F airplanes.
DC-8-62 airplanes.
DC-8-62F airplanes.
DC-8-63 airplanes.
DC-8-63F airplanes.
DC-8-71 airplanes.
DC-8-71F airplanes.
DC-8-72 airplanes.
DC-8-72F airplanes.
DC-8-73 airplanes.
DC-8-73F airplanes.
DC-9-11 airplanes.
DC-9-12 airplanes.
DC-9-13 airplanes.
DC-9-14 airplanes.
DC-9-15 airplanes.
DC-9-15F airplanes.
DC-9-21 airplanes.
DC-9-31 airplanes.
DC-9-32 airplanes.
DC-9-32 (VC-9C) airplanes.
DC-9-32F airplanes.
DC-9-32F (C-9A, C-9B) airplanes.
DC-9-33F airplanes.
DC-9-34 airplanes.
DC-9-34F airplanes.
DC-9-41airplanes.
DC-9-51 airplanes.
DC-9-81 (MD-81) airplanes.
DC-9-82 (MD-82) airplanes.
DC-9-83 (MD-83) airplanes.
DC-9-87 (MD-87) airplanes.
MD-88 airplanes.
MD-90-30 airplanes.
DC-10-10 airplanes.
DC-10-10F airplanes.
DC-10-15 airplanes.
DC-10-30 airplanes.
DC-10-30F airplanes.
DC-10-30F (KC-10A, KDC-10)
airplanes.
DC-10-40 airplanes.
DC-10-40F airplanes.
MD-10-10F airplanes.
MD-10-30F airplanes.
MD-11 airplanes.
MD-11F airplanes.
------------------------------------------------------------------------
Compliance: Required as indicated, unless accomplished
previously.
To prevent incapacitation of the flightcrew due to lack of
oxygen, which could result in loss of control of the airplane,
accomplish the following:
Revision to the Airplane Flight Manual
(a) Within 90 days after the effective date of this AD: For the
applicable airplane models listed in the ``For--'' column of Table 2
of this AD, revise the procedures regarding donning oxygen masks in
the event of rapid depressurization, as contained in the Emergency
Procedures section of the FAA-approved Airplane Flight Manual (AFM),
by replacing the text in the ``Replace--'' column of Table 2 of this
AD with the information in the applicable figure referenced in the
``With the Information In--'' column of Table 2 of this AD. This may
be accomplished by recording the AD number of this AD on the
applicable figure and inserting it into the AFM. Table 2 and Figures
1 through 9 follow:
Table 2.--AFM Revisions
----------------------------------------------------------------------------------------------------------------
With the Information
For-- Replace-- in--
----------------------------------------------------------------------------------------------------------------
Boeing Model 707, 720, and 727 ``RAPID DEPRESSURIZATION............................ Figure 1 of this AD.
series airplanes. Oxygen Masks & Regulators--ON, 100% ALL''...........
------------------------------------
Boeing Model 737-100, -200, and - ``RAPID DEPRESSURIZATION (With airplane altitude Figure 2 of this AD.
200C series airplanes. above 14,000 feet M.S.L.).
PRIMARY.............................................
Oxygen Masks & Regulators--ON, 100%''...............
------------------------------------
[[Page 40826]]
Boeing Model 737-300, 737-400, 737- ``RAPID DEPRESSURIZATION (With airplane altitude Figure 3 of this AD.
500, 747-100, 747-100B, 747-100B above 14,000 feet M.S.L.).
SUD, 747-200B, 747-200F, 747-200C, RECALL..............................................
747-300, 747SR, and 747SP series Oxygen Masks & Regulators--ON, 100%''...............
airplanes.
------------------------------------
McDonnell Figure 5 of Douglas Model ``RAPID DECOMPRESSION/EMERGENCY DESCENT............. Figure 5 of this AD.
DC-9-11, DC-9-12, DC-9-13, DC-9- Phase I and II......................................
14, DC-9-15, DC-9-15F, DC-9-21, DC- Manual Pressurization Control.......................
9-31, DC-9-32, DC-9-32 (VC-9C), DC- FULL FORWARD AND MANUALLY LOCKED....................
9-32F, DC-9-32F (C-9A, C-9B), DC-9- Note: Manual Pressurization control forces may be
33F, DC-9-34, DC-9-34F, DC-9-41, high, apply forces as required.
and DC-9-51 airplanes. Crew Oxygen Masks--ON''.............................
------------------------------------
McDonnell Douglas Model DC-9-81 (MD- ``RAPID DECOMPRESSION/EMERGENCY DESCENT............. Figure 6 of this AD.
81), DC-9-82 (MD-82), DC-9-83 (MD- Phase I and II......................................
83), DC-9-87 (MD-87), MD-88 Manual Pressurization Control--FULL FORWARD AND
airplanes. MANUALLY LOCKED.
Note: Manual Pressurization control forces may be
high, apply forces as required.
Crew Oxygen Masks--ON/EMERGENCY/100%''..............
------------------------------------
McDonnell Douglas Model MD-90-30 ``RAPID DECOMPRESSION............................... Figure 7 of this AD.
airplanes. OXY MASKS--ON/100%/EMERGENCY''......................
------------------------------------
McDonnell Douglas DC-10-10, DC-10- ``RAPID DEPRESSURIZATION/EMERGENCY DESCENT.......... Figure 8 of this AD.
10F, DC-10-15, DC-10-30, DC-10- Recall..............................................
30F, DC-10-30F (KC-10A, KDC-10), Cabin OUTFLOW VALVE --VERIFY CLOSED (CLOSE
DC-10-40, and DC-10-40F airplanes. ELECTRICALLY OR MANUALLY IF NOT CLOSED).
Oxygen Masks --100% (if required)''.................
------------------------------------
McDonnell Douglas MD-10-10F, MD-10- ``CABIN ALTITUDE.................................... Figure 9 of this AD.
30F, MD-11, and MD-11F airplanes. Memory Item.........................................
Outflow Valve--Verify Closed''......................
------------------------------------
----------------------------------------------------------------------------------------------------------------
Figure 1
For Boeing Model 707, 720, and 727 Series Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING OR RAPID DEPRESSURIZATION
If the cabin altitude warning horn sounds:
Oxygen Masks & Regulators................. ON, 100%, ALL''
The rest of the steps under this heading in the AFM are
unchanged.
Figure 2
For Boeing Model 737-100, -200, and -200C Series Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING OR RAPID DEPRESSURIZATION
If the cabin altitude warning horn sounds:
PRIMARY
Oxygen Masks & Regulators................. ON, 100%''
The rest of the steps under this heading in the AFM are
unchanged.
Figure 3
For Boeing Model 737-300, 737-400, 737-500, 747-100, 747-100B, 747-
100B SUD, 747-200B, 747-200F, 747-200C, 747-300, 747SR, and 747SP
Series Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING OR RAPID DEPRESSURIZATION
If the cabin altitude warning horn sounds:
RECALL
Oxygen Masks & Regulators................. ON, 100%''
The rest of the steps under this heading in the AFM are
unchanged.
Figure 4
For McDonnell Douglas Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-
8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8-51, DC-8-52, DC-8-
53, DC-8F-54, DC-8-55, DC-8F-55, DC-8-61, DC-8-61F, DC-8-62, DC-8-
62F, DC-8-63, DC-8-63F, DC-8-71, DC-8-71F, DC-8-72, DC-8-72F, DC-8-
73, and DC-8-73F Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING/RAPID DEPRESSURIZATION
Phase I and II
If the cabin altitude warning occurs:
Crew oxygen mask &........................ ON/100%''
The rest of the steps under this heading in the AFM are
unchanged.
[[Page 40827]]
Figure 5
For McDonnell Douglas Model DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-
9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-
32F, DC-9-32F (C-9A, C-9B), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41,
and DC-9-51 Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING/RAPID DEPRESSURIZATION/EMERGENCY DESCENT
Phase I and II
If a cabin altitude warning occurs:
Crew Oxygen Masks......................... ON/100%
Manual Pressurization Control............. FULL FORWARD AND MANUALLY
LOCKED
Note: Manual Pressurization control forces may be high, apply
forces as required.''
The rest of the steps under this heading in the AFM are
unchanged.
Figure 6
For McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-
83 (MD-83), DC-9-87 (MD-87), and MD-88 Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING/RAPID DEPRESSURIZATION/EMERGENCY DESCENT
Phase I and II
If the cabin altitude warning occurs:
Crew Oxygen Mask.......................... ON/100%
Manual Pressurization Control............. FULL FORWARD AND MANUALLY
LOCKED
Note: Manual Pressurization control forces may be high, apply
forces as required.''
The rest of the steps under this heading in the AFM are
unchanged.
Figure 7
For McDonnell Douglas MD-90-30 Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING OR RAPID DEPRESSURIZATION
If the cabin altitude warning occurs:
OXY MASKS................................. ON/100%''
The rest of the steps under this heading in the AFM are
unchanged.
Figure 8
For McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-
30, DC-10-30F, DC-10-30F (KC-10A, KDC-10), DC-10-40, and DC-10-40F
Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING OR RAPID DEPRESSURIZATION/EMERGENCY DESCENT
Recall
If the cabin altitude warning occurs:
Oxygen Masks.............................. ON/100%
Cabin
OUTFLOW VALVE............................. VERIFY CLOSED (CLOSE
ELECTRICALLY OR MANUALLY IF
NOT CLOSED)''
The rest of the steps under
t
h
i
s
h
e
a
d
i
n
g
i
n
t
h
e
A
F
M
a
r
e
u
n
c
h
a
n
g
e
d
.
The rest of the steps under this heading in the AFM are
unchanged.
Figure 9
For McDonnell Douglas Model MD-10-10F, MD-10-30F, MD-11, and MD-11F
Airplanes:
Insert the information in this figure into the ``Emergency
Procedures'' section of the FAA-approved Airplane Flight Manual.
``CABIN ALTITUDE WARNING OR CABIN ALTITUDE
If the cabin altitude warning occurs:
Memory Item
Oxygen Masks.............................. ON/100%
Outflow Valve............................. Verify Closed''
The rest of the steps under this heading in the AFM are
unchanged.
Alternative Methods of Compliance
(b) In accordance with 14 CFR 39.19, the Manager, Seattle
Aircraft Certification Office (ACO), FAA, or the Manager, Los
Angeles ACO, FAA, is authorized to approve alternative methods of
compliance for this AD.
Issued in Renton, Washington, on July 1, 2003.
Vi L. Lipski,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 03-17317 Filed 7-8-03; 8:45 am]
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