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CFR Citation: 14 CFR Part 39

Docket ID: [Docket No. FAA-2005-21470; Directorate Identifier 2003-NM-45-AD; Amendment 39-15302; AD 2007-25-20]

RIN ID: RIN 2120-AA64

NOTICE: RULES

ACTION: Airworthiness directives:

DOCUMENT ACTION: Final rule.

SUBJECT CATEGORY: 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

DATES: This AD becomes effective January 22, 2008.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of January 22, 2008.

On October 1, 2001 (66 FR 44950, August 27, 2001), the Director of the Federal Register approved the incorporation by reference of McDonnell Douglas Service Bulletin DC1078060, dated December 17, 1999.

On April 25, 2001 (66 FR 15785, March 21, 2001), the Director of the Federal Register approved the incorporation by reference of McDonnell Douglas Alert Service Bulletin DC1078A057, Revision 01, dated February 18, 1999.

DOCUMENT SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model DC1010, DC1010F, DC1015, DC1030 and DC1030F (KC10A and KDC10) airplanes; Model DC1040 and DC10 40F airplanes; and Model MD11 and MD11F airplanes. This AD requires, for certain airplanes, modifying the thrust reverser command wiring of the number 2 engine. For certain other airplanes, this AD requires modifying the thrust
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reverser system wiring from the flight compartment to engines 1, 2, and 3 thrust reversers. This AD also requires installing thrust reverser locking systems on certain airplanes. This AD results from 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.

SUMMARY: McDonnell Douglas,

SUPPLEMENTAL INFORMATION

The FAA issued a supplemental notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to certain McDonnell Douglas Model DC1010, DC1010F, DC1015, DC1030 and DC 1030F (KC10A and KDC10) airplanes; Model DC1040 and DC1040F airplanes; and Model MD11 and MD11F airplanes. That supplemental NPRM was published in the Federal Register on July 23, 2007 (72 FR 40090). That supplemental NPRM proposed to require, for certain airplanes, modifying the thrust reverser command wiring of the number 2 engine. For certain other airplanes, the supplemental NPRM proposed to require modifying the thrust reverser system wiring from the flight compartment to engines 1, 2, and 3 thrust reversers. The supplemental NPRM also proposed to require installing thrust reverser locking systems on certain airplanes. The supplemental NPRM also proposed to revise 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.

Comments

We provided the public the opportunity to participate in the development of this AD. We have considered the comment received. Request for Notification of Service Bulletin/Rulemaking

FedEx requests that we and/or Boeing notify operators of any service bulletin or rulemaking that will cover Model MD11 and MD11F airplanes that are not specified in Boeing Alert Service Bulletin MD11 78A007, Revision 4, dated February 22, 2007 (which is referred to as a source of service information for doing a modification specified in the supplemental NPRM). FedEx states that it has no comments on the proposed requirements of the supplemental NPRM.

We acknowledge FedEx's request. We have been advised that when a service bulletin is released Boeing does notify the customers affected by the service bulletin. If service information is developed for other Model MD11 and MD11F airplanes and an unsafe condition is identified, we might consider further rulemaking. Interested persons can review the Federal Register to become aware of such rulemaking actions. Conclusion

We have carefully reviewed the available data, including the comment received, and determined that air safety and the public interest require adopting the AD as proposed in the supplemental NPRM. Costs of Compliance

There are about 612 airplanes of the affected designs in the worldwide fleet. This AD affects about 245 airplanes of U.S. registry. The following tables provide the estimated costs for U.S. operators to comply with this AD, for the applicable actions, at an average hourly labor rate of $80 per work hour.
Cost for Wiring Modification/Thrust Reverser Locking System Installation Number of Cost per U.S. Action Work hours Parts airplane registered Fleet cost airplanes Modify wiring (Model DC10 34.............. $1,562.......... $4,282......... 40 $171,280. 10, DC1010F, DC1015, DC
1030 and DC1030F (KC10A
and KDC10) airplanes).
Modify wiring (Model DC1040 34.............. $5,238.......... $7,958......... 45 $358,110. and DC1040F airplanes).
Modify wiring (Model MD11 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. [[Page 71208]]
Install thrust reverser 218............. Between $165,535 Between 45 Between locking system (Model DC10 and $207,792. $182,975 and $8,233,875 and 40 and DC1040F airplanes). $225,232. $10,135,440. Cost of Concurrent Actions for Model MD11 and MD11F Airplanes Number of Cost per U.S. Action Work hours Parts airplane registered Fleet cost airplanes Update program software, as 2............... None............ $160........... Up to 160 Up to $25,600. applicable.
Modify wing pylon harnesses, 100............. $5,268.......... $13,268........ Up to 160 Up to as applicable. $2,122,880. Modify pylon thrust reverser Between 82 and Between $10,472 Between $17,032 Up to 160 Up to harnesses and Jbox, as 192. and $15,999. and $31,359. $5,017,440. applicable.

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 AD will not have federalism implications under Executive Order 13132. This AD will 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 this AD: (1) Is not a ``significant regulatory action'' under Executive Order 12866;
(2) Is not a ``significant rule'' under 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 AD 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, Incorporation by reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39AIRWORTHINESS 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):
20072520 McDonnell Douglas: Amendment 3915302. Docket No. FAA 200521470; Directorate Identifier 2003NM45AD.
Effective Date
(a) This AD becomes effective January 22, 2008.
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 DC1010, DC1010F, DC10 Boeing Service Bulletin DC1078 15, DC1030 and DC1030F (KC10A and 066, Revision 01, dated KDC10) airplanes. November 30, 2001. (2) Model DC1040 and DC1040F Boeing Service Bulletin DC1078 airplanes. 067, dated October 30, 2002. (3) Model MD11 and MD11F airplanes... Boeing Alert Service Bulletin MD1178A007, 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.
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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 DC1010, DC1010F, DC1015, DC1030, and DC
1030F (KC10A and KDC10) 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 DC1078066, Revision 01, dated November 30, 2001.
(g) For Model MD11 and MD11F 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 MD1178A007, Revision 4, dated February 22, 2007.
Wiring Modification/Installation of Thrust Reverser Locking System (h) For Model DC1040 and DC1040F 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 DC1078067, 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 DC1078064, dated June 24, 2003.
Prior or Concurrent Actions
(i) For Model DC1010, DC1010F, DC1015, DC1030, and DC
1030F (KC10A and KDC10) 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.
Table 2.Prior or Concurrent Actions for Model DC1010, DC1010F, DC 1015, DC1030, and DC1030F (KC10A and KDC10) Airplanes In accordance with Do Required by
Repetitive detailed visual Paragraphs (c) and McDonnell Douglas inspections, functional (i) of AD 200105 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 20011719, Service Bulletin the thrust reversers. amendment 3912410. DC1078060, dated December 17, 1999; or McDonnell Douglas Service Bulletin DC1078 060, Revision 01, dated June 30, 2003.
(j) For Model MD11 and MD11F 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 MD11 and MD11F Airplanes
Do In accordance with An update of the program software of McDonnell Douglas Service display electronic units. Bulletin MD1131091, dated November 5, 1998. A modification of the wing pylon Rohr Service Bulletin MD11 54 harnesses. 200, Revision 1, dated May 14, 2001.
A modification of the pylon thrust Rohr Service Bulletin MD11 54 reverser harnesses and Jbox. 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 DC1078066, dated March 6, 2001; Rohr Service Bulletin MD11 54201, dated November 30, 1999; or Rohr Service Bulletin MD11 54201, 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.
Material Incorporated by Reference
(m) You must use the service bulletins listed in Table 4 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise.
Table 4.All Material Incorporated by Reference Service Bulletin Revision level Date Boeing Alert Service Bulletin MD11 4................................... February 22, 2007. 78A007.
Boeing Service Bulletin DC1078066. 01.................................. November 30, 2001. Boeing Service Bulletin DC1078067. Original............................ October 30, 2002. McDonnell Douglas Alert Service 01.................................. February 18, 1999. Bulletin DC1078A057, including
Attachment A.
McDonnell Douglas Service Bulletin Original............................ December 17, 1999. DC1078060.
McDonnell Douglas Service Bulletin 01.................................. June 30, 2003. DC1078060.
McDonnell Douglas Service Bulletin Original............................ June 24, 2003. DC1078064.
McDonnell Douglas Service Bulletin Original............................ November 5, 1998. MD1131091.
Rohr Service Bulletin MD11 54200.. 1................................... May 14, 2001. [[Page 71210]]
Rohr Service Bulletin MD11 54201.. 2................................... December 12, 2005. (1) The Director of the Federal Register approved the
incorporation by reference of the service bulletins listed in Table 5 of this AD in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Table 5.New Material Incorporated by Reference Service Bulletin Revision level Date Boeing Alert Service Bulletin MD11 4................................... February 22, 2007. 78A007.
Boeing Service Bulletin DC1078066. 01.................................. November 30, 2001. Boeing Service Bulletin DC1078067. Original............................ October 30, 2002. McDonnell Douglas Service Bulletin 01.................................. June 30, 2003. DC1078060.
McDonnell Douglas Service Bulletin Original............................ June 24, 2003. DC1078064.
McDonnell Douglas Service Bulletin Original............................ November 5, 1998. MD1131091.
Rohr Service Bulletin MD11 54200.. 1................................... May 14, 2001. Rohr Service Bulletin MD11 54201.. 2................................... December 12, 2005. (2) On October 1, 2001 (66 FR 44950, August 27, 2001), the Director of the Federal Register approved the incorporation by reference of McDonnell Douglas Service Bulletin DC1078060, dated December 17, 1999.
(3) On April 25, 2001 (66 FR 15785, March 21, 2001), the Director of the Federal Register approved the incorporation by reference of McDonnell Douglas Alert Service Bulletin DC1078A057, Revision 01, including Attachment A, dated February 18, 1999. (4) Contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1L5A (D8000024), for a copy of Boeing and McDonnell Douglas service information. Contact Rohr, Inc., 850 Lagoon Drive, Chula Vista, California 919102098, for a copy of Rohr service information. You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 2027416030, or go to: http://www.archives.gov/federalregister/cfr/ibrlocations.html .

Issued in Renton, Washington, on November 29, 2007. Stephen P. Boyd,
Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. E723934 Filed 121407; 8:45 am]
BILLING CODE 491013P

FOR FURTHER INFORMATION CONTACT Philip C. Kush, Aerospace Engineer, Propulsion Branch, ANM140L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 907124137; telephone (562) 6275263; fax (562) 6275210.