AD 94-07-13
Unsafe Condition
Fatigue cracking and other damage to the engine mount shear shelf web caused by interference between the engine mount shear shelf web and the fixed cowl mid and aft hooks, which could lead to loss of the engine mounting structure.
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Required Actions
Modify (reinforce) the engine mount shear shelf webs in accordance with Part 1 or Part 2 of Fokker Service Bulletin SBF100-71-012. An alternative method of compliance may be used if approved by the FAA.
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Compliance Time
Prior to the accumulation of 12,000 total flight hours or within 90 days after the effective date of this AD, whichever occurs later.
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Affected Aircraft
Fokker Model F-28 Mark 0100 series airplanes with serial numbers 11244 to 11308 inclusive, 11310, 11312, 11313, 11314, 11316, 11321, 11328, and 11329.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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