Service difficulty report · Skin · Boeing 767322

Difficulty date
April 30, 2021
Submitted
April 30, 2021
Operation
Air carrier
Aircraft
N644UA
Make and model
Boeing 767322
Aircraft serial
25094
Aircraft time
116,167 hours, 17,905 cycles
Part
Skin
Part number
1146T324112
Condition
Corroded
Location
Bs 1540
Stage of operation
IN
How discovered
V
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

CORROSION DAMAGE WAS FOUND ON FUSELAGE INTERNAL SKIN, PN 1146T3241-12, JUST AFT OF STA 1540 BETWEEN S39L & 39R IN THE AREA WHERE A DRAIN VALVE AND AN EXISTING REPAIR EXIST. AMOUNT OF MATERIAL REMOVED TO CLEAN THE DAMAGE EXCEEDS LIMIT 0.15T IAW 767-300 SRM 53-00-01 ALLOWANBLE DAMAGE 1. REF FIG 1 OF RI-53-00-14514 REV A.