AD 96-23-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ100A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes and Model Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ70A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes and Model Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | Avro 146-RJ85A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes and Model Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-100A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes and Model Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-200A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes and Model Avro 146-RJ Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-300A | Airworthiness Directives; British Aerospace Model BAe 146 Series Airplanes and Model Avro 146-RJ Series Airplanes |
Unsafe Condition
The inability of the windshear computer to detect the true flap position due to electrical circuit integrity issues between the windshear computer and flap position sensor, which could result in erroneous computer-generated guidance and reduced controllability during a windshear encounter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 300 landings or 60 days after the effective date, perform a test of the electrical circuit between the windshear computer and flap position sensor per SB 34-A155. Repeat tests at intervals not exceeding 300 landings until replacement. If a test fails, repair wiring before further flight. Replace windshear computers with part number 6508-5 within 6 months after the effective date, and change polarizing keys per SB.34-160-70548A.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 300 landings or 60 days after the effective date of this AD, whichever occurs first; replacement required within 6 months after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
British Aerospace Model BAe 146 and Avro 146-RJ series airplanes with BAe Modification HCM40270A/B installed.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.