81-16-09 CESSNA: Amendment 39-4182. Applies to the following airplanes certificated in any category: \n\n\n\nModel\nSerial Numbers\n172N, 172P\n17271035 thru 17274523 \nR172K\nR1722930 thru R1723425\n172RG\n172RG0001 thru 172RG0789\nF172\nF17201750 thru F17202134 \nFR172\nFR1720631 thru FR1720675\n\n\n\tCOMPLIANCE: Required as indicated unless already accomplished in accordance with AD 81-04-04, Amendment 39-4042. \n\n\tTo ensure the integrity of the elevator control system, accomplish the following within the next 25 hours time-in-service after the effective date of this AD. \n\n\tA)\tRemove the MS24665-134 cotter pins, AN310-3 nuts and AN23-12 clevis bolts that attach both elevator cable clevises (forks) to the aft elevator bellcrank. \n\n\tB)\tClean the mating surfaces of the bellcrank and elevator cable clevises (forks). \n\n\tC)\tVisually inspect to assure that there is clearance between the elevator cable clevises (forks) and bellcrank. \n\n\tD)\tInstall the AN23-12 clevis bolts with the head to the right side for the upper bolt and left side for the lower bolt and the AN310-3 nuts removed in paragraph A. Install new MS24665-134 cotter pins. Assure that the elevator cable clevises (forks) can swivel freely. \n\n\tE)\tCheck elevator cable tension, 30 ñ 10 lbs. \n\n\tF)\tConduct operational check of elevator control system. \n\n\tNOTE: While Cessna Single Engine Service Information Letter SE80-78, Revision 1, dated July 13, 1981, pertains to this subject, the action required in this AD is more comprehensive. \n\n\tThis amendment supersedes AD 81-04-04, Amendment 39-4042. \n\n\tThis amendment becomes effective August 13, 1981.