Service difficulty report · Retainer · Boeing 75724APF

Difficulty date
July 22, 2026
Submitted
August 19, 2026
Operation
Air carrier
Aircraft
N424UP
Make and model
Boeing 75724APF
Aircraft serial
25369
Aircraft time
36,393 hours, 24,004 cycles
Part
Retainer
Part number
69716903
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

LOWER HALF OF FUSELAGE LAVATORY DRAIN VALVE ORANGE HEATED GASKET BROKEN AND RETAINER IS CORRODED. FABRICATED NEW RETAINER IAW DWG 69-71690-3.

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