Service difficulty report · Fire Warning · Boeing 74747UF

Difficulty date
March 25, 2007
Submitted
April 4, 2007
Operation
Air carrier
Aircraft
N412MC
Make and model
Boeing 74747UF
Aircraft serial
30559
Aircraft time
30,278 hours, 4,512 cycles
Part
Fire Warning
Condition
Unknown
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

ON CLIMB-OUT, FIRE WARNING BELL RANG INTERMITTENT EVERY FEW SECONDS FOR 20 MINUTES OF FLIGHT. NO OTHER INDICATION. MAWEA SYS CYCLED, MAWEA OPERATION CHECK CARRIED OUT AND FOUND NORMAL AS PER AMM 31-51-00, 715-014.

More about the Boeing 747-47UF