SDR UIEA2024061200515

Service difficulty report · Tube · Boeing 747481

Difficulty date: June 11, 2024
Submitted: June 13, 2024
Operation: Air carrier
Aircraft: N429MC
Make and model: Boeing 747481
Aircraft serial: 24833
Aircraft time: 117,679 hours, 18,050 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: Tube
Condition: Damaged
Location: Nr 1 Hyd System
Stage of operation: CL
How discovered: O
Nature of condition: K, J
Precautionary procedure: A

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

What was found

EICAS HYD SYS 1 ON T/O ROTATION SYS 1 HYD FAILED. R & R ALL HYD DAMAGED TUBES ON LT BLG WHEEL WELL PER NRC 60, 61, 62, 66, 67, 68, 69, 70, 71, 103, 137, & 138 OF W/O 131823 FOR CORRECTIVE ACTION. OPS & LEAK CHECK NORMAL PER AMM 20-11-05.