SDR UIEA2023121801003

Service difficulty report · Wire · Boeing 747412F

Difficulty date: December 18, 2023
Submitted: December 20, 2023
Operation: Air carrier
Aircraft: N489MC
Make and model: Boeing 747412F
Aircraft serial: 26553
Aircraft time: 113,026 hours, 19,841 cycles
System (JASC): 3297 · Landing Gear System Wiring
Part: Wire
Part number: BMS1348TYPE12CLA
Part serial: NSN
Condition: Unknown
Location: Unknown
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A, J

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

What was found

UNABLE TO RETRACT LANDING GEAR WITH ASSOCIATED GEAR TILT(<P>R/R LH BODY GEAR TILT ACTUATOR, HYD FUSE, WIRE W1172-226/225/20B, AND TERMINAL BLOCK. PERFORMED OPS CHECK, LEAK CHECK & ALL GEARS SWING OPS CHECK, ALL CHECKS NORMAL REF AMM 32-31-00. EXTENDED & RETRACT GEAR HANDLE OPS CHECK NORMAL</P>)