AD 98-01-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 050 | Airworthiness Directives; Fokker Model F27 Mark 050 Series Airplanes |
Unsafe Condition
Failure of the aileron gustlock mechanism and the inboard aileron hinge bolt, which could result in inability to operate the ailerons and consequent reduced controllability of the airplane.
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Required Actions
Replace the spring tab balance units in the ailerons and the inboard aileron hinge bolts and bearings with improved parts in accordance with Fokker Service Bulletin SBF50-27-036. An alternative method of compliance may be approved if submitted through an FAA Principal Maintenance Inspector.
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Compliance Time
Within 16 months after the effective date of this AD (January 28, 1998).
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Affected Aircraft
Fokker Model F27 Mark 050 airplanes; serial numbers 20103 through 20266 inclusive, 20270 through 20292 inclusive, and 20294 through 20304 inclusive; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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