AD 72-22-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Razorback Fabrics, Inc. | Fiberglass Fabric | Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Control Surfaces Covered with Fiberglass |
Unsafe Condition
Fiberglass covering attached with plastic coated glass rib stitch cord may delaminate due to the black plastic coating deteriorating, compromising structural integrity.
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Required Actions
Inspect the interior of wings, tail, or control surfaces to check for plastic coated rib stitch cord. If present, replace stitching with MIL-C-5649 cord or FAA approved equivalent. Patch holes as per FAA Advisory Circular 43.13-1.
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Compliance Time
within the next fifty hours' time in service after the effective date of this airworthiness directive
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Affected Aircraft
Airplanes having wings, tail, or control surfaces covered with fiberglass using the 'razorback' method, certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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