Summary
We are adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model MD-90-30 airplanes. This AD requires installing fuses and wire protection in certain wing and fuel tank spars. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent possible damage to the fuel level float or pressure switch wires. Such damage could become a potential ignition source inside the fuel tank, and, when combined with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
Directive Details
AD Number
FAA-2009-0213
Document Number
E9-12521
Type
Rule
Publication Date
June 2, 2009
Effective Date
July 7, 2009
Affected Manufacturer
McDonnell Douglas Model MD-90-30
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2009-0213
Topics
Official Documents
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