69-15-06 LEARJET: Amendment 39-802. Applies to Model 23 (Serial Numbers 23-012, 23-019 and 23-030 thru 23-099) equipped with Controlex ball bearing throttle cables; Model 24 (Serial Numbers 24-100 thru 24-139) equipped with Controlex ball bearing throttle cables; and (Serial Numbers 24-140 thru 24-180); and Model 25 (Serial Numbers 25-003 thru 25-024) Airplanes.
Compliance: Within 50 hours' time in service after the effective date of this Airworthiness Directive, unless already accomplished:
To prevent the possibility of the engine power control cable jamming, accomplish the following:
Remove the one-piece Controlex throttle cables and install two-piece quick-disconnect type ball bearing throttle cables in accordance with Lear Service Kit No. 23/24/25-317, dated May 19, 1969, or later Federal Aviation Administration approved revision, or an equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Central Region.
This amendment becomes effective August 15, 1969.