AD 88-11-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 552 | Airworthiness Directives; CESSNA Models S550 and 552 Airplanes |
| aircraft | Cessna Aircraft Company | S550 | Airworthiness Directives; CESSNA Models S550 and 552 Airplanes |
Unsafe Condition
Loss of a flap panel due to absence or obstruction of three required 3/16-inch diameter drain/vent holes on each flap panel.
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Required Actions
Visually inspect each flap panel's inboard lower surface for presence and unobstructed status of three 3/16-inch drain/vent holes. If holes are missing or obstructed, repair or replace flap panels per Cessna Service Bulletins or FAA-approved method. Comply with alternate means if approved by FAA Manager, Wichita Aircraft Certification Office.
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Compliance Time
prior to further flight after the effective date of this amendment
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Affected Aircraft
Cessna Models S550 (serial numbers S550-0001 through S550-0153) and 552 (serial numbers 552-0001 through 552-0017)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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