Service difficulty report · Skin · Boeing 737

Difficulty date
August 3, 2022
Submitted
August 23, 2022
Operation
Air carrier
Aircraft
N253UP
Make and model
Boeing 737
Aircraft serial
48439
Aircraft time
78,291 hours, 17,541 cycles
Part
Skin
Part number
APB74411
Condition
Corroded
Location
Center Wing Box
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

INSPECTION TYPE:3CCENTER WING UPPER FORWARD SKIN HAS CORROSION BETWEEN STR 17 AND STR 18,BETWEEN STA.XCW=-81 AND XCW=-112.REPAIRED CORRODED CENTER WING UPPER FWD SKIN IAW VT-SAA EA 011-5710-01-A9664 REV I/R AND UPS EO MD11-5730-84509-A (MINOR).