AD 98-11-29
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ100A | Airworthiness Directives; British Aerospace Models BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ70A | Airworthiness Directives; British Aerospace Models BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ85A | Airworthiness Directives; British Aerospace Models BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-100A | Airworthiness Directives; British Aerospace Models BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-200A | Airworthiness Directives; British Aerospace Models BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-300A | Airworthiness Directives; British Aerospace Models BAe 146 and Avro 146-RJ Series Airplanes |
Unsafe Condition
Corrosion of the threads of the eyebolt and piston rod on the retraction jack of the main landing gear (MLG), which may cause the eyebolt to detach from the jack, and consequent unrestrained MLG deployment or inability to retract the MLG.
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Required Actions
Perform a one-time visual inspection to detect corrosion of the threads of the eyebolt and piston rod on the retraction jack of the MLG in accordance with British Aerospace Service Bulletin SB.32-145, Revision 1. If corrosion is detected, repair prior to further flight as per the service bulletin or an approved method.
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Compliance Time
Within the specified timeframes based on MLG retraction jack age: (1) 2 years after the effective date for jacks with 7-9 years since manufacture, (2) 1 year after effective date for jacks with 9+ years, (3) later of 6 years since manufacture or 2 years after effective date for others. Compliance required as indicated unless accomplished previously.
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Affected Aircraft
BAE Systems (Operations) Limited models Avro 146-RJ100A, Avro 146-RJ70A, Avro 146-RJ85A, BAe 146-100A, BAe 146-200A, BAe 146-300A, as listed in British Aerospace Service Bulletin SB.32-145, Revision 1.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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