Airworthiness Directive · Amendment 39-16431 · Fuel
The Boeing Company Model 737-700 (IGW) Series Airplanes Equipped With Auxiliary Fuel Tanks Installed in Accordance With Configuration 3 of Supplemental Type Certificate ST00936NY
This AD applies to The Boeing Company Model 737-700 (IGW) series airplanes, certificated in any category; equipped with auxiliary fuel tanks installed in accordance with Configuration 3 of Supplemental Type Certificate ST00936NY.
We are adopting a new airworthiness directive (AD) for certain Model 737-700 (IGW) series airplanes. This AD requires deactivation or modification of PATS Aircraft, LLC, auxiliary fuel tanks. This AD results from fuel system reviews conducted by the manufacturer. 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 6 months after the effective date of this AD: Accomplish the requirements specified in paragraph (g)(1) or (g)(2) of this AD.
(1) Deactivate the auxiliary fuel tanks, in accordance with a deactivation procedure approved by the Manager, New York Aircraft Certification Office (ACO). For any deactivation procedure to be approved, it must be shown that following deactivation, any auxiliary tank component that remains on the airplane must be secured and must be shown to meet the certification basis of the airplane. Deactivation must not result in the need for additional instructions for continued airworthiness.
Note 1: Appendix A of this AD provides criteria that should be included in the deactivation procedures. The proposed deactivation procedures should be submitted to the Manager, New York ACO, as soon as possible to ensure timely review and approval.
Note 2: For technical information, contact Mazdak Hobbi, Aerospace Engineer, Propulsion and Services Branch, ANE-173, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone 516-228-7330; fax 516-794-5531.
(2) Modify the auxiliary fuel system by doing all the applicable actions in accordance with the Accomplishment Instructions of DeCrane Aerospace 737-700 IGW Service Bulletin ST00936NY-D-28-SB-001_K, dated August 25, 2008; and DeCrane Aerospace 737-700 IGW Service Bulletin ST00936NY-D-28-SB-021_K, dated January 8, 2009.
Actions accomplished before the effective date of this AD according to the service information identified in Table 1 of this AD, are considered acceptable for compliance with the corresponding actions specified in paragraph (g)(2) of this AD.
| Service Bulletin | Revision | Date |
|---|---|---|
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-001_G | G | March 27, 2008. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-001_H | H | May 16, 2008. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-001_J | J | July 24, 2008. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-021_D | D | October 31, 2007. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-021_E | E | December 7, 2007. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-021_F | F | February 7, 2008. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-021_G | G | March 14, 2008. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-021_H | H | July 24, 2008. |
| DeCrane Aerospace 737-700 IGW ST00936NY-D-28-SB-021_J | J | August 25, 2008. |
| DeCrane Aircraft 737-700IGW ST00936NY-28-SB-001_IR | Initial Release | September 3, 2004. |
| DeCrane Aircraft 737-700 IGW ST00936NY-28-SB-001_A | A | September 15, 2004. |
| DeCrane Aircraft 737-700 IGW ST00936NY-28-SB-001_B | B | October 26, 2004. |
| DeCrane Aircraft 737-700 IGW ST00936NY-28-SB-001_C | C | November 4, 2004. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-001_D | D | August 8, 2007. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-001_E | E | January 8, 2008. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-001_F | F | February 5, 2008. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-021_IR | Initial Release | January 31, 2007. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-021_A | A | May 17, 2007. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-021_B | B | July 3, 2007. |
| PATS Aircraft 737-700 IGW ST00936NY-D-28-SB-021_C | C | August 8, 2007. |
(i) Within 45 days after the effective date of this AD, submit a report to the Manager, New York ACO. The report must include the information listed in paragraphs (i)(1), (i)(2), and (i)(3) 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 operation status.
(2) The usage frequency in terms of total number of flights per year and total number of flights per year for which the auxiliary tank is used.
(3) Method of complying with paragraph (g)(1) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
