AD 2024-18-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier, Inc., Airplanes |
Unsafe Condition
The pivot door pressure seals on the thrust reverser fixed structure were found disbonded or missing on several airplanes. This could result in engine thrust loss due to flow path overboard leakage during forward thrust operation and reduce airplane performance during one-engine inoperative conditions in climb margin and ceiling altitude.
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Required Actions
Inspect the 4 pivot door pressure seals on the thrust reverser door of each engine for discrepancies (missing, damaged, or disbonding), perform a bonding check as applicable, and repair or replace each discrepant seal as applicable. Also, perform a functional test of the thrust reversers.
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Compliance Time
Within 750 flight hours or 18 months, whichever comes first from the effective date of this AD.
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Affected Aircraft
Bombardier, Inc., Model BD-700-2A12 airplanes, certificated in any category, with serial numbers 70007, 70008, 70010, 70012 through 70047 inclusive, 70049, 70051, 70052, 70053, 70055 through 70077 inclusive, 70079, 70080, 70081, 70083 through 70133 inclusive, 70135, 70136, 70137, 70138, 70142 through 70148 inclusive, 70150, 70152, and 70158.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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