AD 2008-21-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-300 | Airworthiness Directives; Boeing Model 737-300, -400, and -500 Series Airplanes |
Unsafe Condition
Corrosion damage of the chrome runout on the head side found on all four midspar fuse pins of the nacelle strut, with a large portion of the chrome plate missing from the corroded area of the shank, could result in reduced structural integrity of the fuse pins and consequent loss of the strut and separation of the engine from the airplane.
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Required Actions
Perform a detailed inspection for discrepancies of the fuse pins of the inboard and outboard midspar fittings of the nacelle strut, including all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-54-1044. Complete all applicable corrective actions before further flight. Repeat the inspection at the times specified in the service bulletin.
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Compliance Time
Within the specified compliance times after the effective date of this AD, unless already done.
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Affected Aircraft
All Boeing Model 737-300, -400, and -500 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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