SDR P5CA9701216

Service difficulty report · Wire · Boeing 747123

Difficulty date: July 1, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N858FT
Make and model: Boeing 747123
Aircraft serial: 20109
System (JASC): 2613 · Overheat Detection
Part: Wire
Condition: Broken
Location: Nr 4 Pylon
Stage of operation: TO
How discovered: O
Nature of condition: N
Precautionary procedure: C

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

What was found

RIGHT WING OVERHEAT LIGHT ON. ISOLATED RIGHT WING IAW CHECKLIST LIGHT DID NOT GO OUT WITH EITHER NR 3 OR NR 4 ENGINE AT IDLE. WITH NR 3 ENGINE OF AND NR 4 ENGINE AT IDLE LIGHT WENT STEADY ON. FOUND WIRES TO AFT OVERHEAT SENSOR IN NR 4 PYLON BROKEN FROM SENSOR. REINSTALLED TERMINAL ENDS PER WIRING STANDARD PRACTICE MANUAL 20-60-06, OPERATIONAL CHECK PER 26-18-02.