Airworthiness Directive · Amendment 39-16024 · Boeing Model 727-281 Airplanes Equipped With Auxiliary Fuel Tanks Installed in Accordance With Supplemental Type Certificate SA3449NM
Boeing Model 727-281 Airplanes Equipped With Auxiliary Fuel Tanks Installed in Accordance With Supplemental Type Certificate SA3449NM
This AD applies to Boeing Model 727-281 airplanes, certificated in any category, and equipped with auxiliary fuel tanks installed in accordance with Supplemental Type Certificate (STC) SA3449NM.
We are adopting a new airworthiness directive (AD) for certain Boeing Model 727-281 airplanes. This AD requires deactivation of Rogerson Aircraft Corporation auxiliary fuel tanks. This AD results from fuel system reviews conducted by the manufacturer, which identified potential unsafe conditions but has not provided associated 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 60 days after the effective date of this AD, submit a report to the Manager, Los Angeles Aircraft Certification Office (ACO), FAA. Information collection requirements in this AD are approved by the Office of Management and Budget (OMB) under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.) and are assigned OMB Control Number 2120-0056. The report must include the following information:
(1) The airplane registration and auxiliary tank STC number installed.
(2) The usage frequency in terms of total number of flights per year and total number of flights for which the auxiliary tank is used.
Within 90 days after the effective date of this AD, deactivate the auxiliary fuel tanks, in accordance with a deactivation procedure approved by the Manager of the Los Angeles ACO. Any auxiliary tank 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.
Note 1: Appendix A of this AD provides criteria that might need to be included in the deactivation procedure. Timely approval is dependent on early submittal of the deactivation procedures.
Note 2: For technical information, contact Dan Zevallos, Director of Program Management, Rogerson Aircraft Corporation, 2201 Alton Parkway, Irvine, California 92606; telephone (949) 442-2306; fax (949) 442-2322.
