SDR KCSA10049

Service difficulty report · Fire Warning · Boeing 747246B

Difficulty date: November 5, 2010
Submitted: November 5, 2010
Operation: Air carrier
Aircraft: N700CK
Make and model: Boeing 747246B
Aircraft serial: 22990
Aircraft time: 111,230 hours, 15,295 cycles
System (JASC): 2612 · Fire Detection
Part: Fire Warning
Condition: False Activation
Location: Cockpit
Stage of operation: TO
How discovered: O
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 TILL CLIMB, THRUST INTERMITTENT FALSE FIRE WARNING ON GLARE SHIELD. FIRE WARNING LT AND BELL. REMOVED, INSPECTED AND RE-INSTALLED FIRE WARNING DETECTION CARDS IAW B747 MM 26-10-00, P.401, 402, 403, AND 404. NO DEFECTS NOTED. OPS CHECKED FIRE DETECTION SYSTEM IAW B747 MM 26-11-00, 26-14-00, 26-15-00, 26-17-00 AND 26-16-00. NO DEFECTS NOTED. ALL DETECTION SYSTEMS OPERATE AND TEST NORMALLY.