AD 94-12-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 050 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; Fokker Model F27 Series Airplanes |
Unsafe Condition
Corrosion and fatigue cracking in AN bolts installed in various flight critical components, which jeopardize the airworthiness of the affected airplanes as they approach or exceed their economic design goal.
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Required Actions
Replace AN bolts with NAS 1303/1320 bolts in flight controls, control surfaces, fuel control installations, engine mount and nacelle brace installations, and engine control installations per Fokker Service Bulletin F27/51-10, Rev 2, as amended. Prohibit installation of listed AN bolts in flight critical components. Allow alternative methods with FAA approval.
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Compliance Time
Within 3 years after the effective date of this AD (July 20, 1994)
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Affected Aircraft
Fokker Model F27 series airplanes, serial numbers 10102 through 10612, 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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