Service difficulty report · Sealant · Boeing 777224

Difficulty date
September 5, 2025
Submitted
September 5, 2025
Operation
Air carrier
Aircraft
N78009
Make and model
Boeing 777224
Aircraft serial
29479
Aircraft time
124,206 hours, 12,730 cycles
Part
Sealant
Condition
Deteriorated
Location
Zone 200
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHILE PRESSURIZING AIRCRAFT TO LEAK CHECK CAPT WINDSHIELD FOUND 3 LOCATIONS LEAKING. STARTED TO REMOVE SEALANT AND REMOVED WINSHIELD WIPER. SEALANT DID NOT APPEAR TO BE FULLY CURED HAD A CRUMBLY TEXTURE AND SMELLED UNCURED. REMOVED OLD SEALANT, RETORQUED AND RESEALED CAPT WINDSHIELD REF AMM 56-11-01. SEALED AT 01:30. LEAK CHECK STILL REQUIRED AFTER SEALANT CURES. PRESSURIZED AIRCRAFT TO 2 DPSI NO LEAKS NOTED. OPS CK GOOD, AMM 56-11-01