SDR UPS97425071

Service difficulty report · Connector · Boeing 747123F

Difficulty date: November 12, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N673UP
Make and model: Boeing 747123F
Aircraft serial: 20325
System (JASC): 2612 · Fire Detection
Part: Connector
Condition: Loose
Location: Nr 1 Engine
Stage of operation: TO
Nature of condition: N
Precautionary procedure: K

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

What was found

AFTER V1 ON TAKEOFF ROLL FIRE BELL WENT OFF BRIEFLY. AT ALTITUDE NR 1 A LOOP FAILED THE FIRE TEST. REFER TO LOG PAGE NR 996478. NR 1 ENGINE NACELLE B LOOP SELECTED. THE NR 1 A LOOP NACELLE INDICATOR CONTINUOUSLY JUMPED BETWEEN - 4 AND 8. FOUND LOOSE CONNECTION ON OUTBD SIDE OF ENG RESECURED OPS CK GOOD PER M/M 26-00 THIS CLEARS DEFERAL M141523 PLACARD REMOVED .