AD 2008-23-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes |
Unsafe Condition
Bolts attaching the undercarriage main beam sidestay to frame 29 were found with the heads sheared off, and loose bolt assemblies were also found. If not detected and replaced, this could lead to the collapse of the main landing gear.
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Required Actions
Perform a one-time rotating eddy current inspection of the bolt bores and bore dimensions. Replace affected bolts as necessary, following BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-194, dated January 10, 2007. If replacement parts are not available, temporarily reinstall oversized bolts and replace them within 2,000 flight cycles. Contact BAE Systems (Operations) Limited for repair instructions if defects are found in the second oversize fastener bore.
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Compliance Time
Within 4,000 flight cycles or 5 years, whichever occurs first after the effective date of this AD.
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Affected Aircraft
All BAE Systems (Operations) Limited Model BAe 146-100A, -200A, and -300A series airplanes; and Model Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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