SDR TWAA9804001

Service difficulty report · Rib · Boeing 727231

Difficulty date: April 8, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N54325
Make and model: Boeing 727231
Aircraft serial: 20232
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Cracked
Location: Lt Wing
Stage of operation: IN
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

MCI - DURING C-CHECK MAINTENANCE, THE LEFT WING EDDY CURRENT SHOWED CRACK INDICATION AT 6 AND 12 O'CLOCK POSITION IN RIB CHORD TOP FORWARD HOLE. LEFT BOTTOM FWD HOLE HAD 2 CRACKS IN VERTICAL LEG 2 AND 7 'CLOCK. STOP DRILLED CRACKS PER SRM 51-10-01 FIG 6A. INSTALL DOUBLER REPAIR ON LEFT WING UPPER RIB CHORD PER BAC SERVICE BULLETIN 727-57-0112 AND AD 94-07-08. (M)