AD 96-26-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F27 Mark 100 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 200 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 300 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 400 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 500 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 600 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
| aircraft | Fokker Services | F27 Mark 700 | Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes |
Unsafe Condition
Fatigue cracking of the torque tube support of the left-hand (LH) elevator could result in failure of the torque tube or its support structure, leading to reduced controllability of the airplane.
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Required Actions
Inspect the torque tube assembly and surrounding structure of the LH elevator for cracking and loose or sheared rivets using Fokker Service Bulletin F27/55-66. Replace discrepant parts, repair cracks in the rib at station 300, or stop drill and repeat inspections for cracks not exceeding 30 mm, all as specified in the service bulletin.
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Compliance Time
Prior to the accumulation of 45,000 total flight cycles, or within 4 months after the effective date of this AD, whichever occurs later.
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Affected Aircraft
Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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