AD 2010-23-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 Airplanes |
Unsafe Condition
Failure of balance washer screws due to a specific batch with a metallographic non-conformity, increasing susceptibility to brittle fracture, which can lead to loss of the balance washer, turbine imbalance, and potential RAT structural failure, loss of electrical power, structural damage to the aircraft, and loss of hydraulic power for flight controls.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect airplanes to determine if non-conforming balance washer screws are installed on the RATs. Replace the balance washer screws if required. Prohibit future installation of unmodified RATs.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified in the AD, unless the actions have already been performed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes, serial numbers 9002 and subsequent, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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