77-23-11 CESSNA: Amendment 39-3084. Applies to Model 182 Series (Serial Nos. 18260797 thru 18265965) plus all other Cessna Model 182 Series incorporating ELT installations accomplished in accordance with Cessna Service Letter SE73-41 dated December 12, 1973, and references Kits AK150-97F or AK150-104A.
Compliance: Required as indicated unless already accomplished.
To preclude the possibility of an in-flight fire due to a loose ELT antenna coaxial cable connector making contact with the terminals of the battery relay and thereby shorting the electrical power to ground:
A) Before the next flight, visually inspect the ELT antenna coaxial cable for security, and correct as necessary in accordance with Cessna Service Letter SE73-41, or later approved revisions and/or the applicable Cessna Service Manual, by accomplishing the following:
1. Assure that the ELT antenna RF connector is solidly attached at the ELT and is spring loaded in the detent position. If not correctly attached and/or spring loaded, either properly secure the connector, or, if damaged, replace the complete antenna coaxial cable assembly.
2. Assure that the plastic cable clamp, Cessna P/N S1155-3 or equivalent, is properly installed on the ELT coaxial cable and secured to structure above the ELT transmitter and mount (applicable to S/N's 33000 thru 18265175). If the coaxial cable is improperly secured, install a new plastic cable clamp, Cessna P/N S1155-3 or equivalent, if necessary, and properly secure.
3. Assure that the length of excess coaxial cable is coiled and secured to the mounted ELT transmitter by the required plastic sta-strap which has been properly installed. If not, properly secure with a new plastic sta-strap or equivalent.
B) If operations are being conducted with the ELT removed, as provided by FAR 91.52(f), ascertain that the antenna cable is secured away from the battery relay.
C) Airplanes may be flown, in accordance with FAR 91.52(e)(2), to a location where this AD can be accomplished, provided the operator disconnects the ELT antenna cable and removes it from the aircraft.
D) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering & Manufacturing Branch, FAA, Central Region.
This amendment becomes effective November 28, 1977, to all persons except those to whom it has already been made effective by air mail letter from the FAA dated October 28, 1977.