AD 80-11-04

80-11-04 CESSNA: Amendment 39-3782. Applies to the following models and serial number airplanes certificated in all categories:

Models

Serial Numbers 150F 15061533 through 15064532 150G 15064533 through 15067198 150H 15067199 through 15069308 150J 15069309 through 15071128 150K 15071129 through 15072003 150L 15072004 through 15075781 150M 15075782 through 15079405 A150K A1500001 through A1500226 A150L A1500227 through A1500523 A150M A1500524 through A1500734 152 15279406 through 15284541 A152 A1520735 through A1520943 F150F F150-0001 through F150-0067 F150G F150-0068 through F150-0219 F150H F150-0220 through F150-0389 F150J F150-0390 through F150-0529 F150K F15000530 through F15000658 F150L F15000659 through F15001143 F150M F15001144 through F15001428 FA150K FA15000O1 through FA1500081 FA150L FA1500082 through FA1500120 FRA150L FRA1500121 through FRA1500261 FRA150MFRA1500262 through FRA1500336 F152 F15201429 through F15201803 FA152 FA1520337 through FA1520372

COMPLIANCE: Required as indicated unless already accomplished.

To detect cracked NAS 1068A4 nutplates which, if allowed to go undetected, could result in separation of the vertical or vertical and horizontal tail assembly from the airplane, within 100 hours time-in-service after the effective date of this AD, and every 100 hours time-in-service thereafter, accomplish the following:

A) Using a suitable light and mirror visually inspect the eight NAS 1068A4 nutplates installed on the Part Number 0432004-9 vertical fin aft attach bracket for cracks in the threaded part (nut body) and/or base of the nutplate and replace any cracked nutplates prior to further flight.

B) Compliance with this AD is no longer required if the NAS 10684A nutplates are replaced with AN365-428, MS20365-428, MS2l042L4 or MS21044N4 nuts.

C) Any equivalent method of compliance with this AD must be approved by the Chief, Aircraft Certification Program, Room 238, Terminal Building 2299, Mid-Continent Airport, Wichita, Kansas 67209.

NOTE: Cessna Single Engine Service Information Letter SE79-49, Revision # 1, dated April 28, 1980, pertains to the subject.

The AD supersedes AD 78-07-10, Amendment 39-3174 (43 FR 14958, 14959).

This Amendment 39-3782 becomes effective June 2, 1980.