Service difficulty report · Stringer · Boeing 767322

Difficulty date
April 7, 2026
Submitted
April 8, 2026
Operation
Air carrier
Aircraft
N644UA
Make and model
Boeing 767322
Aircraft serial
25094
Aircraft time
131,983 hours, 20,261 cycles
Part
Stringer
Part number
146T300311
Condition
Corroded
Location
Zone 100
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

BULK CARGO BILGE INSULATION, S-32L TO BL 0, BS 1540 TO 1629 (163BIA) WAS FOUND CORROSION AT S-36L / BS 1562. IT WAS PERFORMED THE ESFR AND SDR. IT IS NECESSARY QC APPROVAL AND UPDATE ON NON ROUTINE. INSPECTED AND APPROVED ESFR #3330 THE STEPS WERE PERFORMED PER STEPS ON NON-ROUTINE. THE ECRA 5360-02126 HAS BEEN ISSUED. NO MORE MAINTENANCE ACTION REQUIRED QC INSPECTION APPROVED.