Airworthiness Directives; Boeing Model 727-281 Airplanes Equipped With Auxiliary Fuel Tanks Installed in Accordance With Supplemental Type Certificate SA3449NM
airworthiness · Rule · Final rule. · Published 2009-09-21 · Effective 2009-10-26 · 74 FR 48007
Document
Document number
E9-22575
Federal Register citation
74 FR 48007
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Boeing Model 727-281
Publication date
2009-09-21
Effective date
2009-10-26
FAA docket
Docket No. FAA-2008-1325
Abstract
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.