Cessna Service Bulletin SB09-25-01

Effectivity:  The following airplanes in compliance with SB04-25-01 Revision 3 or 4 Crew Seat Recline Modification (which incorporates installation of MK172-25-10B or MK172-25-10C).

Also affected are any of the following airplanes that have had a 0790007-2 Height Adjustment Nut installed that was shipped from Cessna Parts Distribution on October 1, 2006 through February 20, 2007:

Model      Serial #

172R       17280001 thru 17281262

172S       172S8001 thru 172S9994

182S       18280001 thru 18280944

182T       18280945 thru 18281701

T182T     T18208001 thru T18208453

206H       20608001 thru 20608250

T206H     T20608001 thru T20608570

Also affected are all part number 0790007-2 Height Adjustment Nuts in Service Station stock that were shipped from Cessna Parts Distribution on October 1 2006 thru February 20, 2007.

Reason:  It has been determined that some of the 0790007-2 nuts may have been made with internal threads that are larger than specified.  If the internal threads of the nut are too large, it could result in damage to the nut threads and/or to the 0514226-12 Seat Height Adjust Shaft.

Compliance:  Mandatory: shall be accomplished within the next 100 hours of operation or 12 months, whichever occurs first.  Credit:  February 9, 2010