AD 79-18-06 ACTIVE

79-18-06 BENDIX: Amendment 39-3546 as amended by Amendment 39-3606. Applies to Bendix D-2000 and D-2200 series magnetos installed on 4, 6, or 8 cylinder reciprocating engines.

To preclude the loss of ignition, accomplish the following within the next ten hours after the effective date of this AD unless previously accomplished.

(a) Housing Distortion

For any of the following magnetos, accomplish Detailed Instructions, Part I of Bendix Service Bulletin No. 605 by means of any one of Methods, I, II or III and Information Parts I-C and I-D or FAA approved equivalent procedures.

(1) Red nameplate magnetos, Serial Numbers below 25001.

(2) Blue nameplate magnetos, Serial Numbers below 901001.

(3) Dual Ignition Systems with broken torque seals or no torque seals on four middle cover screws.

(4) Duel Ignition Systems not having the letter "K" stamped on the magneto nameplate following the serial number and without a caution decal on the magneto cover.

(b) Coil Securing Kit

For the following magnetos, accomplish Detailed Instructions of Part II of Bendix Service Bulletin No. 605 or FAA approved equivalent procedures.

(1) Red nameplate magnetos, Serial Numbers below Serial Number 17815 not having the letter, "C", stamped approximately in the center of the magneto nameplate bottom line.

(2) Blue nameplate magnetos, Serial Numbers below 806001 not having the letter, "C", stamped approximately in the center of the magneto nameplate bottom line.

(Bendix Service Bulletin No. 584B incorporated by reference in Service Bulletin No. 605.)

(c) Identification

After accomplishing the instructions of the Airworthiness Directive, metal stamp the letter, "K", after the magneto serial number on the magneto nameplate, the letter, "C", approximately centered on the magneto nameplate bottom line, and make an engine log book entry of compliance including magneto serial number.

Equivalent inspections and procedures must be approved by the Chief of the Engineering and Manufacturing Branch, AEA-210, Federal Aviation Administration, (FAA) Eastern Region. As permitted by FAR 21.197, aircraft may be flown to a base where maintenance required by this Airworthiness Directive can be accomplished. Upon request, with substantiating data submitted through an FAA Maintenance Inspector, the compliance time specified in this AD may be adjusted by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.

Amendment 39-3546 was effective September 17, 1979.

This Amendment 39-3606 is effective upon publication in the Federal Register.