Airworthiness Directive · Amendment 39-18453 · Fuel
The Boeing Company Airplanes
This AD applies to The Boeing Company Model DC-9-83 (MD-83) airplane, fuselage number 2155 (variable number 80E718, serial number 53192), certificated in any category.
We are adopting a new airworthiness directive (AD) for a certain The Boeing Company Model DC-9-83 (MD-83) airplane. This AD requires installing fuel level float and pressure switch in-line fuses, and doing applicable wiring changes, on the left, right, and center wing forward spars, forward auxiliary fuel tank, and aft auxiliary fuel tank. 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.
Within 60 months after the effective date of this AD, install fuel level float and pressure switch in-line fuses, and do applicable wiring changes, on the left, right, and center wing forward spars, forward auxiliary fuel tank, and aft auxiliary fuel tank. Do the actions in accordance with the Accomplishment Instructions of Boeing Service Bulletin MD80-28-226, Revision 1, dated March 6, 2015.
