AD 2018-02-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model AS350B | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
A blocked oil hose could lead to degradation of the main rotor mast bearings, loss of transmission function, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the oil hose for the presence of oil, inspect the oil hose for blockage, and mark the hose if there is no blockage. If there is oil present, remove the hose and determine if there is blockage. If there is blockage, replace the main rotor mast and the oil hose. If there is oil present and no blockage, mark the hose with an 'X' following the P/N. Replace the main rotor mast and the oil hose if the oil hose is blocked.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 30 hours time-in-service (TIS)
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.