AD 96-11-16
Unsafe Condition
Cracking and deformation of the wing collector tanks due to over-pressure during refueling, which could result in reduced structural integrity of the wing.
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Required Actions
Perform a one-time refueling pressure measurement, conduct NDT inspections for cracking/deformations of collector tank ribs, and modify top-hat stringers by removing restriction blocks as per specified service bulletins.
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Compliance Time
Within 45 days after the effective date for the pressure measurement; within 2 years for top-hat stringer modification for Category 1; prior to specified flight cycles or time in Table 1 for Categories 2-5; within 100 flight cycles for Category 6 or exceeded flight cycles.
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Affected Aircraft
Fokker Model F28 Mark 0100 airplanes, serial numbers 11244 through 11277 inclusive, 11279, 11281 through 11287 inclusive, and 11289 through 11400 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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