88-20-02: Manifold Clamps

88-20-02 MCDONNELL DOUGLAS: Amendment 39-6025. Applies to Model DC-9-80 (MD-80) series airplanes and Model MD-88 airplanes, certificated in any category, equipped with Janitrol P/N 14J93-350 clamps manufactured after March 1, 1988, including, but not limited to the following airplane factory serial numbers: \n\n\n49462\t\n49584\t\n49658 \n49463\t\t\n49585\n49661 \n49464\t\n49586\t\n49667 \n49509\t\n49592\t\n49668 \n49559\t\n49593\t\n49669 \n49560\t\n49604\t\n49670 \n49561\n49605\t\n49671 \n49562\t\n49617\t\n49672 \n49563\t\n49619\t\n49701 \n49564\t\n49620\n49702 \n49565\t\n49621\t\n49703 \n49566\t\n49622\t\n49704 \n49571\n49623\n49705 \n49572\t\n49624\t\n49707 \n49573\t\t\n49625\n49711 \n49577\t\t\n49644\n49712 \n49578\n49645\t\n49389 \n49579\t \n49646\n\n49583\t\n49657 \n\n\t\n\tNOTE: Additionally, airplanes other than those listed above are affected by this AD, if suspect clamps were installed on engine eighth or thirteenth stage pneumatic manifold end caps as replacement parts. \n\n\tCompliance required as indicated, unless previously accomplished. \n\n\tTo prevent uncontained separation of engine pneumatic manifold end caps, accomplish the following: \n\n\tA.\tWithin 25 days after the effective date of this AD, inspect both engines' eighth and thirteenth stage pneumatic manifold end cap clamps, Janitrol P/N 14J93-350, for identification markings, and accomplish the following: \n\n\tNOTE: Refer to McDonnell Douglas DC-9 Master Illustrated Parts Catalog 36-10-00, Figure 1A, Item 105, for locations of clamps. \n\n\t\t1.\tClamps with the number "5T400" and a date stamp, or the number "89513", appearing next to Janitrol P/N 14J93-350 are acceptable, and no further action is necessary. \n\n\t\t2.\tClamps with the number "63367" appearing next to Janitrol P/N 14J93-350 must be removed prior to further flight, and replaced with airworthy clamps. \n\n\t\t3.\tClamps with the number "5T400" appearing next to Janitrol P/N 14J93-350, and without a date stamp, must be removed prior to further flight, and replaced with airworthy clamps. \n\n\tB.\tPrior to installation of any eighth or thirteenth stage pneumatic manifold end cap clamp, Janitrol P/N 14J93-350, perform the inspection required by paragraph A., above. Do not install any clamp having the number "63367", or the number "5T400" and no date stamp, appearing next to Janitrol P/N 14J93-350. \n\n\tC.\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, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain 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, Los Angeles Aircraft Certification Office. \n\n\tThis amendment, 39-6025, becomes effective October 11, 1988.