Service difficulty report · Rib · Boeing 737322

Difficulty date
November 1, 2007
Submitted
November 6, 2007
Operation
Air carrier
Aircraft
N374UA
Make and model
Boeing 737322
Aircraft serial
24639
Aircraft time
50,721 hours, 35,000 cycles
Engine
Ge CFM56*
Part
Rib
Condition
Cracked
Location
Lt Wing
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

LT WING NR 1 FUEL TANK INTERIOR RIB AT STA 135.5 LOWER CHORD AT FORWARD UPPER EDGE OF L-2 STRINGER CUT-OUT CRACKED. REPAIRED PER EA NR I070802. REMOVED AND REPLACED RIB AT STA 135.5 STRINGER L2. REF SB 737-57-1186 ON N-R 12553-5000-0015.