EASA Safety Information Notice
Issued: 12 November 2007
Cessna 180, 182 and 185 series aircraft, experiencing Horizontal Stabiliser
Trim ‘Freeze-up’ In-Flight
FAA Special Airworthiness Information Bulletin (SAIB) CE-08-02, dated
November 2, 2007.
This Safety Information Notice (SIN) refers to FAA SAIB CE-08-02
(attached to this document as pages 2 and 3) and informs you of an
airworthiness concern on Cessna 180, 182 and 185 series aircraft.
Cessna 180, 182 and 185 series aircraft, Models and serial numbers as
indicated in the attached FAA SAIB CE-08-02.
Recommendation: This Safety Information Notice is for information only.
For further information contact the Airworthiness Directives, Safety and
Research Section, Certification Directorate, EASA.
E-mail: ADs@easa.europa.eu .
Aircraft Certification Service
SUBJ: Flight Controls
Date: November 2, 2007
This is information only. Recommendations aren’t mandatory.
This Special Airworthiness Information Bulletin (SAIB) is to inform you of an airworthiness concern
on Cessna 180, 182, and 185 series airplanes (serial numbers listed in Table 1).
A pilot operating a Cessna 185 reported to maintenance personnel of having the horizontal stabilizer
trim “freeze up in flight” (i.e. jam due to mechanical wear). Maintenance personnel inspected the
system and found the trim screw barrels in the tail to be excessively worn (Cessna Part Number (P/N)
0712500-13). One of the barrels was stripped out and the second barrel had approximately one-third
of the threads missing. The screws that thread into the barrels (Cessna P/N 0712500-11) also were
worn. Eight similar occurrences have been reported in service difficulty reports.
Cessna created temporary revisions for the service manuals listed in Table 1 to add a