Airworthiness Directive 99-18-14
one-timeAirworthiness Directives; Cessna Aircraft Company Model 172R Airplanes
What this AD requires
This amendment adopts a new airworthiness directive (AD) that applies to Cessna Aircraft Company (Cessna) Model 172R airplanes equipped with a certain modification kit that reduces friction in the elevator control system. This AD requires inspecting the control yoke pivot bolt to assure positive clearance between the pivot bolt's threaded end and aileron direct cable. If positive clearance is not found, this AD requires replacing the control yoke pivot bolt, inspecting the adjacent aileron control cables for damage, and replacing any damaged aileron control cable. This AD is the result of the manufacturer supplying incorrect length control yoke pivot bolts in Cessna Modification Kits MK 172-27-01 that were shipped from September 21, 1998, through April 18, 1999. The actions specified by this AD are intended to prevent failure of an aileron control cable because of an incorrect length control yoke pivot bolt rubbing on one of these cables, which could result in loss of aileron control with loss of directional control of the airplane.
Which aircraft AD 99-18-14 applies to
Prevents failure of an aileron control cable caused by an incorrect-length control yoke pivot bolt rubbing on the cable, which could result in loss of aileron and directional control. Requires, within 25 hours TIS, inspecting the control yoke pivot bolt for positive clearance from the aileron direct cable per Cessna Service Bulletin SB99-27-01, dated July 12, 1999; if clearance is not found, replace the pivot bolt and inspect/replace any damaged aileron cable. Cessna Modification Kit MK 172-27-01 shipped between September 21, 1998 and April 18, 1999 could contain incorrect-length bolts that rub on the cable; no person may incorporate such a kit unless a replacement bolt is obtained from the manufacturer.
Whether AD 99-18-14 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.