Airworthiness Directive · Amendment 39-10924 · BFGoodrich Avionics Systems, Inc. SKYWATCH SKY497 Installations with a Top-Mounted Antenna
BFGoodrich Avionics Systems, Inc. SKYWATCH SKY497 Installations with a Top-Mounted Antenna
SKYWATCH SKY497 installations with a top-mounted antenna that are installed on, but not limited to, the following aircraft, all serial numbers, certificated in any category: Manufacturer Aircraft models and/or series Raytheon.............................. Beech 90, 100, 200, and 300 Series. Cessna................................ 172, 182, 206, 208, 210, 300, 400, and 500 Series. Piper................................. PA-23, PA-31-360, PA-31T, PA-32, PA-34, PA-42, and PA-46. Hawker................................ HS-700 and HS-800. Mitsubishi............................ MU-2 Series. Dassault.............................. F10. Mooney................................ M20 Series. Bombardier............................ DHC-6 Series. West- wind............................ 1124. Bell.................................. 407. Eurocopter............................ AS365. Socata................................ TBM700.
This amendment adopts a new airworthiness directive (AD) that applies to all BFGoodrich Avionics Systems, Inc. (BFGoodrich) SKYWATCH SKY497 installations with a top-mounted antenna that are installed on aircraft. This AD requires incorporating information into the airplane flight manual (AFM) that specifies verifying the correct antenna configuration each time an aircraft equipped with a SKY497 installation with a top-mounted antenna is powered-up. The AD also requires removing from service any of these SKY497 installations with an incorrect antenna configuration. This AD results from numerous reports of internal component failure of the above-referenced installations, which changed the antenna configuration (from TOP to BOTTOM mount). The actions specified by this AD are intended to prevent the display of target indicators on the wrong side of the aircraft caused by an internal component failure in the SKY497 installations with a top- mounted antenna, which could result in the pilot making an incorrect initial maneuver based on the displayed information while trying to visually acquire the aircraft.
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.
Aircraft
Appliances and equipment
