AD 77-03-02 R2
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
Rupture of the engine fuel feed hose assemblies due to accumulated time in service or age.
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Required Actions
Inspect and replace No. 1, 2, and 3 engine forward fuel feed hose assemblies with approved parts per Boeing SB 727-28-51. Install hose clamps on Engine No. 1 and 3 assemblies per SB 727-28-51 within 3,000 hours time in service. Annually reinspect hose assemblies unless replaced with corrosion resistant steel braided hoses, which discontinues the requirement.
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Compliance Time
Within the next 60 days for inspection and replacement, and within 3,000 hours time in service for installing hose clamps. Annual reinspection is required unless replaced with CRES braided hoses.
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Affected Aircraft
Boeing Model 727 Series airplanes with engine forward fuel feed hose assemblies that have accumulated 5 years or 12,000 hours time in service, whichever occurred first.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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