89-06-03 BOEING, McDONNELL DOUGLAS, AND AIRBUS: Amendment 39-6154.\n\n\tApplicability: Boeing Model 747 series airplanes equipped with General Electric CF6-45/50 series engines, as listed in Boeing Alert Service Bulletin 747-73A2048, dated June 9, 1988; Boeing Model 747 series airplanes equipped with Rolls Royce RB211-524 engines, as listed in Boeing Alert Service Bulletin 747-73A2049, dated December 8, 1988; McDonnell Douglas Model DC-9 series airplanes, including Model DC-9-80 series airplanes, Model MD-88 airplanes, and C-9 (Military) airplanes, as listed in McDonnell Douglas Service Bulletin A73-10, Revision 1, dated June 22, 1988; McDonnell Douglas Model DC-10 series airplanes and KC-10 (Military) airplanes, as listed in McDonnell Douglas Alert Service Bulletin A73-21, dated June 23, 1988; Airbus Industrie Model A300 series airplanes, as listed in Airbus Industrie Service Bulletin A300-73-009, dated September 30, 1988; Airbus Model A300-600 series airplanes equipped with General Electric CF6-80C2 engines, as listed in Airbus Industrie A300-73-6008, dated October 11, 1988; and Airbus Model A310 series airplanes equipped with Pratt & Whitney (P&W) 4000 series engines, as listed in Airbus Industrie Service Bulletin A310-73-2011, Revision 1, dated September 27, 1988; certificated in any category.\n\n\tCompliance: Required as indicated, unless previously accomplished.\n\n\tTo prevent engine compartment fires due to fuel leakage from degraded hose assemblies, accomplish the following:\n\n\tA.\tWithin 30 days after the effective date of this amendment, inspect the main fuel and vapor recovery hose assembly for fuel leakage and determine the cure date code contained on both the main fuel supply hose and the vapor recovery hose, in accordance with Boeing Alert Service Bulletin 747-73A2048, dated June 9, 1988 (for Model 747 series airplanes equipped with General Electric CF6-45/50 series engines); Boeing Alert Service Bulletin 747-73A2049, dated December 8, 1988 (for Boeing Model 747 series airplanes equipped with Rolls Royce RB211-524 engines); McDonnell Douglas Service Bulletin A73-10, Revision 1, dated June 22, 1988 (for Model DC-9 and DC-9-80 series airplanes, and Model MD-88 airplanes); McDonnell Douglas Service Bulletin A73-21, dated June 23, 1988 (for Model DC-10 series airplanes); Airbus Industrie Service Bulletin A300-73-009, dated September 30, 1988 (for Model A300 series airplanes); Airbus Industrie A300-73-6008, dated October 11, 1988 (for Model A300-600 series airplanes); or Airbus Industrie Service Bulletin A310-73-2011, Revision 1, dated September 27, 1988 (for Model A310 series airplanes).\n\n\n\nThe affected hose assemblies are Aeroquip Part Number (P/N): \nAE1006944H0140\nAE704313-1\nAE703400-3\nAE704312-2\nAE703402-2\nAE704314-1\nAE1000100H0072\nAE705348-1\nAE703630-1\nAE700064-2\nAE703651-1\nAE703402-2 or RBSL0010-503\n601000-8-0304\nAE704312-5\nAE703650-1\nAE704312-7 or 221D4020-501\nAE703652-1\nAE704312-4 or 221D0041-1\nAE703653-1\n\nAE1006944H0144\n\n\n\tThe affected main fuel supply hoses contain cure date codes of 3Q84 through 2Q87. The affected vapor recovery hoses contain cure date codes of 2Q84 through 3Q87. The affected bulk 601 hose contains a CAGE code of 50556 (regardless of cure date code).\n\n\t\t1.\tIf fuel leakage is detected, prior to further flight, replace the hose(s) with a serviceable hose not containing the cure date codes or CAGE code specified above, in accordance with the applicable service bulletin identified above.\n\n\t\t2.\tIf the affected hoses are installed, but fuel leakage is not detected, repetitively inspect the hoses for evidence of fuel leakage in accordance with the schedule specified in the applicable service bulletin.\n\n\tB.\tAfter the effective date of this amendment, bulk 601 hose with CAGE code of 50556 shall not be installed on any airplane.\n\n\tC.\tReplacement of main fuel supply and vapor recovery hoses with serviceable hoses that do not contain the cure date codes or CAGE code specified in paragraph A., above, constitutes terminating action for the requirements of this AD.\n\n\tD.\tAn alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Chicago Aircraft Certification Office, FAA, Central Region.\n\n\tNOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to the Manager, Chicago Aircraft Certification Office.\n\n\tE.\tSpecial flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.\n\n\tAll persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124; McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director of Publications, C1-L00 (54-60); or Airbus Industrie, Product Support Division, Avenue Didier Daurat, 31700 Blagnac Cedex, France. This information may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the FAA, Central Region, Chicago Aircraft Certification Office, 2300 East Devon Avenue, Room 232, Des Plaines, Illinois.\n\n\tThis amendment (39-6154, AD 89-06-03) becomes effective March 30, 1989.