Airworthiness Directive · Amendment 39-9365 · Learjet Model 35, 35A, 36, 36A, 55, 55B, and 55C Airplanes
Learjet Model 35, 35A, 36, 36A, 55, 55B, and 55C Airplanes
Superseded. A later AD replaced this one: AD 95-19-04 R1 RES. Comply with the one in force.
Model 5, 35A, 36, 36A, 55, 55B, and 55C airplanes; equipped with Global Wulfsburg GNS 500, GNS-1000, and GNS-X Flight Management Systems, certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain Learjet Model 35, 35A, 36, 36A, 55, 55B, and 55C airplanes, that requires installation of a placard on the instrument panel in the cockpit to advise the flightcrew that the Omega navigation system may be inoperative at certain engine speeds. This amendment is prompted by reports of loss of certain navigation signals during extended over water operation. The actions specified by this AD are intended to prevent excessive deviation from the intended flight path due to loss of navigation signals, which could result in a potentially low-fuel condition or a traffic conflict.
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