Airworthiness Directive · Amendment 39-15448 · Boeing Model 727-200 Series Airplanes Equipped with an Auxiliary Fuel Tank System Installed in Accordance with Supplemental Type Certificate SA1350NM
Boeing Model 727-200 Series Airplanes Equipped with an Auxiliary Fuel Tank System Installed in Accordance with Supplemental Type Certificate SA1350NM
This AD applies to Boeing Model 727-200 series airplanes, certificated in any category, equipped with an auxiliary fuel tank system installed in accordance with Supplemental Type Certificate SA1350NM.
We are adopting a new airworthiness directive (AD) for certain Boeing Model 727-200 series airplanes. This AD requires deactivating auxiliary fuel tank systems installed in accordance with Supplemental Type Certificate (STC) SA1350NM. This AD results from fuel tank system reviews conducted by the manufacturer that identified potential unsafe conditions for which the manufacturer has not provided corrective actions. We are issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 45 days after the effective date of this AD, submit a report to the Manager, Wichita Aircraft Certification Office (ACO), FAA. The report must include the information listed in paragraphs (f)(1) and (f)(2) of this AD. Under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has approved the information collection requirements contained in this AD, and assigned OMB Control Number 2120-0056.
(1) The airplane registration and serial number.
(2) The usage frequency in terms of total number of flights per year and total number of flights per year for which the auxiliary fuel tank system is used.
On or before December 16, 2008, deactivate the auxiliary fuel tank system, in accordance with a deactivation procedure approved by the Manager, Wichita ACO. Any auxiliary fuel tank system component that remains on the airplane must be secured and must have no effect on the continued operational safety and airworthiness of the airplane. Deactivation may not result in the need for additional Instructions for Continued Airworthiness (ICA).
Note 1: Appendix A of this AD provides criteria that must be included in the deactivation procedure. The proposed deactivation procedures should be submitted to the Manager, Wichita ACO as soon as possible to ensure timely review and approval, prior to implementation.
Note 2: For technical information, contact Steve Forness, DTAA, Inc., 101 Deer Meadow Court, St. Charles, Missouri 63304; telephone (636) 928-9606; fax (314) 749-7513.
