AD 2018-18-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model AS350B | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
The ingestion of an excessive amount of water through the inlet barrier filter element results in an engine failure, which is an unsafe condition.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 30 days, revise the rotorcraft flight manual supplement by inserting Appendix A of this AD into the limitations section. If the filter medium has moisture during the preflight inspection, or if the rotorcraft is operating in heavy precipitation, open the bypass doors if equipped. When operating in precipitation, sudden and rapid power transients should be avoided whenever practical.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 days
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Affected Aircraft
Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, and AS350BA helicopters with a Pall Aerospace Corporation inlet barrier filter element.
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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