Service difficulty report · Retainer · Boeing 75724APF

Difficulty date
April 13, 2026
Submitted
April 30, 2026
Operation
Air carrier
Aircraft
N454UP
Make and model
Boeing 75724APF
Aircraft serial
25475
Aircraft time
43,406 hours, 22,422 cycles
Part
Retainer
Part number
146N66096
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

UPON SEAL REMOVAL- AFTER CARGO DOOR FRAME SEAL RETAINER LOWER HAS CORROSION THE INTERIOR LENGTH. LOCATED AND DRILLED NEW SEAL RETAINER AT AFT CARGO DOOR FRAME LOWER, TREATED AND PRIMED NEW HOLES IAW SRM 51-40-05-0G-0 AND SRM 51-20-01-0G-0. INSTALLED NEW SEAL RETAINER AT AFT CARGO DOOR FRAME LOWER IAW SRM 51-40-02-0G-0.

More about the Boeing 757-24APF