Airworthiness Directives; The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 Airplanes
airworthiness · Rule · Final rule. · Published 2011-01-12 · Effective 2011-02-16 · 76 FR 1993
Document
Document number
2010-33345
Federal Register citation
76 FR 1993
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2011-01-12
Effective date
2011-02-16
FAA docket
Docket No. FAA-2010-0549
Abstract
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires installing fuel level float and pressure switch in-line fuses on the wing forward spars and forward and aft auxiliary fuel tanks, depending on the airplane configuration. This AD was prompted by 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.