Service difficulty report · Bolt · Cessna 172B

Difficulty date
March 26, 2003
Submitted
April 11, 2003
Operation
General aviation
Aircraft
N6934X
Make and model
Cessna 172B
Aircraft serial
17247834
Engine
Cont O300*
System (JASC)
1430 · Fasteners
Part
Bolt
Part number
AN724A
Condition
Misinstalled
Location
Rt Wing
Part time
1,881 hours
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING ANNUAL INSPECTION, THE RT DIRECT AILERON CABLE (PN 0510105-72) WAS FOUND TO BE CHAFFING ON THE RT WING AFT ATTACH BOLT THREADS AND NUT. FURTHER INVESTIGATION REVEALED THAT BOTH THE LEFT AND RT AFT WING ATTACH BOLTS WERE INSTALLED BACKWARDS WITH THE THREADS FACING IN THE AFT DIRECTION. THE EXCESSIVE LENGTH OF THE THREADED PORTION AND NUT AFT OF THE WING SPAR CAUSED INTERFERENCE WITH THE RT AILERON CABLE. REPLACED THE AILERON CABLE DUE TO SEVERAL STRANDS BEING CHAFFED EXCESSIVELY. REPLACED BOTH AFT WING ATTACH BOLTS AND HARDWARE. RECORD REVIEW SHOWS THAT A/C HAD BEEN REASSEMBLED (FROM STORAGE) IN MAY OF 2002, AT WHICH TIME AN ANNUAL INSP WAS SIGNED OFF.

More about the Cessna 172B