Service difficulty report · Tube · Boeing 747412

Difficulty date
July 10, 2023
Submitted
July 11, 2023
Operation
Air carrier
Aircraft
N703CK
Make and model
Boeing 747412
Aircraft serial
24226
Aircraft time
110,038 hours, 20,250 cycles
Part
Tube
Part number
272U4200103
Condition
Unknown
Location
Nr 1 System
Stage of operation
TX
How discovered
V
Nature of condition
B, J
Precautionary procedure
O

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

What was found

AFTER STARTING #2 ENGINE MAIN DECK FIRE ENGINE INDICATING AND CREW ALERTING SYSTEM MESSAGE WITH VISIBLE SMOKE AND TOXIC SMELL REMOVED AND REPLACED TUBE ASSEMBY LANDING GEAR DOWN SYSTEM 1 AND SYSTEM OPERATIONS CHECK AND LEAK CHECK GOOD IAW AMM 20-11-24 AND AMM 29-34-00 AND FIRE TEST PASSED NO FAULT NOTED IAW AMM 26-00-00.