AD 96-19-16
Unsafe Condition
Cracking of the Hi-lok bolt holes in the main hinge fittings of the horizontal stabilizer due to higher-than-anticipated loads induced during operation of the thrust reverser.
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Required Actions
Perform rotor probe and pencil probe inspections to detect cracking in Hi-lok bolt holes. Modify main hinge fittings and replace/modify connecting angles at Rib 215. Close lightening holes in Rib 215 as per Fokker Service Bulletin SBF100-55-021, Revision 2.
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Compliance Time
Prior to the accumulation of 15,000 total flight cycles, or within 1 year after the effective date of this AD, whichever occurs later.
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Affected Aircraft
Fokker Model F28 Mark 0100 airplanes with serial numbers 11244 through 11420 inclusive, 11422, 11424 through 11428 inclusive, 11432 through 11439 inclusive, and 11443 through 11445 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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