Airworthiness directives › 2003-17-07
AD 2003-17-07 Airworthiness Directives; Various Transport Category Airplanes Manufactured by McDonnell Douglas
Models named: 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-9-11. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the airplanes listed in Table 1 of this AD, certificated in any category. Table 1 of this AD follows: Table 1.—Applicability McDonnell Douglas models As listed in 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, and DC-8-43 airplanes; DC-8-51, DC-8-52, DC-8-53, and DC-8-55 airplanes; DC-8F-54 and DC-8F-55 airplanes; DC-8-61, DC-8-62, and DC-8-63 airplanes; DC-8-61F, DC-8-62F, and DC-8-63F airplanes; DC-8-71, DC-8-72 and DC-8-73 airplanes; DC-8-71F, DC-8-72F, and DC-8-73F airplanes Boeing Alert Service Bulletin DC8-26A042, including Appendix A, dated January 31, 2002. Model DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, and DC-9-15F airplanes; DC-9-21 airplanes; DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-33F, DC-9-34, DC-9-34F, and DC-9-32F (C-9A, C-9B) airplanes; DC-9-41 airplanes; DC-9-51 airplanes; DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) airplanes; and MD-88 airplanes McDonnell Douglas Alert Service Bulletin DC9-26A029, Revision 01, dated May 8, 2001. Model DC-10-10 and DC-10-10F airplanes; DC-10-15 airplanes; DC-10-30 and DC-10-30F (KC-10A and KDC-10) airplanes; DC-10-40 and DC-10-40F airplanes; McDonnell Douglas Alert Service DC10-26A050, dated July 31, 2000. Model MD-11 and MD-11F airplanes McDonnell Douglas Alert Service Bulletin MD11-26A039, Revision 01, dated November 21, 2002. Model MD-90-30 airplanes McDonnell Douglas Alert Service Bulletin MD90-26A005, dated July 31, 2000.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (h) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Testing the Firex Electrical Circuits (f) Within 18 months after the accumulation of 15,000 total flight hours, or within 18 months after September 24, 2003 (the effective date of AD 2003-17-07), whichever occurs later: Test the capability of the electrical circuits of the Firex fire extinguishers for the engine and the APU, as applicable, per the applicable alert service bulletin (ASB) listed in Table 1 of this AD. (1) For any airplane equipped with an APU: If any electrical circuit of the Firex fire extinguishers for the APU does not pass the testing, before further flight, accomplish the troubleshooting procedures specified in the applicable ASB. Dispatch with an inoperative APU is permitted for the amount of time specified in the Minimum Equipment List. Dispatch after that time is not permitted until the circuits are repaired per the Boeing Standard Wiring Practices Manual (SWPM) D6-82481. (2) For all airplanes: If any electrical circuit of the Firex fire extinguishers for the engine does not pass the testing, before further flight, accomplish the troubleshooting procedures specified in the applicable ASB, and repair per SWPM D6-82481. Dispatch is not permitted until the circuits have been repaired. Actions Accomplished Per Previous Issue of Service Bulletins (g) Tests and troubleshooting procedures accomplished before the effective date of this AD per McDonnell Douglas Alert Service Bulletin DC9-26A029, dated July 27, 2000; or MD11-26A039, dated July 31, 2000; are considered acceptable for compliance with the corresponding action specified in paragraph (f) of this AD. Alternative Methods of
Unsafe condition
This AD results from reports indicating that fire extinguishers for the engine and the auxiliary power unit (APU) had failed to discharge when commanded on a McDonnell Douglas Model DC-9-81 airplane and a Model DC-9-33F airplane. We are issuing this AD to prevent failure of the fire extinguishers to fire discharge cartridges, which could result in the inability to put out a fire in an engine or in the APU.
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You just looked this one up by hand
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1