AD 2000-25-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-100 | Airworthiness Directives; Boeing Model 737-100, -200, and -200C Series Airplanes |
Unsafe Condition
Cracking of the aft end of an inboard flap track of the wing outboard flap, caused by corrosion at the fasteners that attach the fail-safe bar to the inner and outer webs, could result in loss of the outboard trailing edge flap and consequent loss of controllability of the airplane.
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Required Actions
Inspect the aft end of each inboard flap track of the wing outboard flap for damage (corrosion, cracking) at intervals not to exceed 1,200 flight cycles. Repair or rework any damaged flap tracks per a method approved by the FAA or per data meeting the type certification basis of the airplane approved by a Boeing Company Designated Engineering Representative authorized by the FAA.
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Compliance Time
Within 1,200 flight cycles
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Affected Aircraft
Boeing Model 737-100, -200, and -200C series airplanes on which the left- or right-hand inboard flap tracks of the wing outboard flap have a part number listed in Table 1 of the AD.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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