AD 87-18-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services | F.28 Mark 0070 | Airworthiness Directives; FOKKER B.V. Model F28 Airplanes |
| aircraft | Fokker Services | F.28 Mark 0100 | Airworthiness Directives; FOKKER B.V. Model F28 Airplanes |
| aircraft | Fokker Services | F.28 Mark 1000 | Airworthiness Directives; FOKKER B.V. Model F28 Airplanes |
| aircraft | Fokker Services | F.28 Mark 2000 | Airworthiness Directives; FOKKER B.V. Model F28 Airplanes |
| aircraft | Fokker Services | F.28 Mark 3000 | Airworthiness Directives; FOKKER B.V. Model F28 Airplanes |
| aircraft | Fokker Services | F.28 Mark 4000 | Airworthiness Directives; FOKKER B.V. Model F28 Airplanes |
Unsafe Condition
Fatigue failure of certain bolts within the horizontal stabilizer control unit could cause uncommanded movement of the horizontal stabilizer.
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Required Actions
Replace the horizontal stabilizer control unit following Fokker Service Bulletin No. F28/F27-168, Revision 1. An alternate means of compliance or adjustment may be approved by the FAA Manager, Standardization Branch. Special flight permits under FAR 21.197 and 21.199 may be issued for operations to a base for modifications.
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Compliance Time
within one year after the effective date of this AD
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Affected Aircraft
Fokker B.V. Model F28 airplanes, serial numbers 11003 through 11195, 11991, and 11992
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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