AD 97-03-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | MD-11 | Airworthiness Directives; McDonnell Douglas Model MD-11 and MD-11F Series Airplanes |
| aircraft | The Boeing Company | MD-11F | Airworthiness Directives; McDonnell Douglas Model MD-11 and MD-11F Series Airplanes |
Unsafe Condition
Cracking or bending of the fuel pipe mounting support and/or attaching bracket in the aft fuselage compartment due to a fuel pressure surge causing repetitive loading, which could expose the fuel pipe coupling O-ring, lose its sealing effect, and allow a fuel leak presenting a fire hazard.
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Required Actions
Perform a visual inspection to detect cracks or deformation of the fuel pipe and mounting bracket, verify fuel pipe flange position, install a restraint on the tail tank fuel pipe, and perform follow-up inspections or repositioning as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 600 flight hours, or within 60 days after July 24, 1996, whichever occurs later. For airplanes without specific modifications, comply by whichever occurs first.
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Affected Aircraft
McDonnell Douglas Model MD-11 and MD-11F series airplanes, manufacturer's fuselage numbers 0447 through 0599 inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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