AD 99-23-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ100A | Airworthiness Directives; British Aerospace Model BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ70A | Airworthiness Directives; British Aerospace Model BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ85A | Airworthiness Directives; British Aerospace Model BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-100A | Airworthiness Directives; British Aerospace Model BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-200A | Airworthiness Directives; British Aerospace Model BAe 146 and Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-300A | Airworthiness Directives; British Aerospace Model BAe 146 and Avro 146-RJ Series Airplanes |
Unsafe Condition
Damage to the fuel feed pipe, which could result in fuel leaks and an increased potential for fire on the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a detailed visual inspection of the fuel feed pipe for signs of chafing and ensure responder units, electrical connector backshells, and wiring are undamaged and correctly positioned. Repeat inspections every 4,000 flight cycles or 2 years, whichever comes first. Repair or replace the pipe if chafing exceeds half the wall thickness before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days after the effective date of this AD
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Affected Aircraft
British Aerospace Model BAe 146 and Avro 146-RJ series airplanes except those with Modification HCMO1638A accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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