Airworthiness Directive · Amendment 39-12604 · Eurocopter Deutschland GmbH Model EC135 Helicopters
Eurocopter Deutschland GmbH Model EC135 Helicopters
Model EC135 helicopters with a Smart Multifunction Display (SMD45H) as the primary flight display (PFD) or navigation display (ND), certificated in any category.
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2001-26-52, which was sent previously to all known U.S. owners and operators of Eurocopter Deutschland GmbH (ECD) Model EC135 helicopters by individual letters. This AD requires, before further Instrument Flight Rule (IFR) flight, inserting a copy of the AD into the Limitations Section of the Rotorcraft Flight Manual (RFM) and replacing each affected Smart Multifunction Display (SMD45H) as specified. Removing the AD from the RFM is required after replacing each affected SMD45H. This AD is prompted by the discovery of an error in the assembly of an internal connector of the SMD45H that sometimes results in an inversion of the display information. The SMD45H provides the flightcrew with essential flight and navigation information. The actions specified by this AD are intended to prevent erroneous flight or navigation display information, produced by a faulty SMD45H, and subsequent loss of control of the helicopter.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
