AD 2010-21-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Learjet | Inc | Airworthiness Directives; Learjet Inc. Model 45 Airplanes |
Unsafe Condition
Accidental discharge of a fire extinguisher container and damage to an aluminum discharge tube, leading to inaccurate pressure indication and potential failure of the fire extinguisher system, which could result in an uncontained fire in an emergency situation.
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Required Actions
Replace aluminum fire extinguisher discharge tubes with new stainless steel tubes; check fire extinguisher containers for specified serial numbers; replace containers with affected serial numbers; perform a weight check on all containers; inspect pressure indicators for discrepancies; and take corrective action if discrepancies are found.
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Compliance Time
Within 12 months after the effective date of this AD.
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Affected Aircraft
Learjet Inc. Model 45 airplanes, certificated in any category, as identified in Bombardier Service Bulletins 40-26-05 and 45-26-9, both Revision 2, both dated May 4, 2009.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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