Service difficulty report · Wing · Gulstm 112TCA

Difficulty date
December 9, 2023
Submitted
December 9, 2023
Operation
General aviation
Aircraft
N4637W
Make and model
Gulstm 112TCA
Aircraft serial
13167
Aircraft time
3,487 hours
Part
Wing
Part number
175032507
Condition
Abnormal
Location
Zone 500
Part time
3,487 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

FOUND FASTENER HEAD MISSING AT LH WING AD 90-04-07 PRIOR ACCOMPLISHMENT IN ACCORDANCE WITH SB 114-22C. COMPROMISED FASTENER LOCATION WAS OUTBOARD IN ROW ALONG FORWARD-AFT ATTACHMENT OF FITTING TO DOUBLER TO CAP SPLICE TO SPAR WEB. DISASSEMBLY OF SB-114-22C ACCOMPLISHMENT IN BOTH LH AND RH WINGS REVEALED POOR INSTALLED CONDITION OF MANY RIVETS. LOGS INDICATE ACCOMPLISHMENT BY COMMANDER AIRCRAFT COMPANY ON 11-14-90 AT TTAF 484.36 HOURS. SB-114-22C ACCOMPLISHMENT IS AT TIS 3003.37 HOURS. POOR WORKMANSHIP GIVES RISE TO QUESTION OF ANY SUBSEQUENT REWORK OF THIS SB ACCOMPLISHMENT, BUT NO SUBSEQUENT LOG ENTRY FOUND.