Superseded. This AD was superseded by AD 2019-16-16. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2018-18-12
Effective 09/25/2018 · Published 09/10/2018
Airworthiness Directives; Airbus Helicopters
Summary
We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, and AS350BA helicopters with a Pall Aerospace Corporation inlet barrier filter (IBF) element. This AD requires revising the Rotorcraft Flight Manual Supplement to prohibit operating a helicopter with an IBF element in wet weather and replacing the IBF element if wet. This AD is prompted by a forced land…