Service difficulty report · Signal Cond Unit · Boeing 7474H6

Difficulty date
October 27, 2015
Submitted
October 29, 2015
Operation
Air carrier
Aircraft
N741CK
Make and model
Boeing 7474H6
Aircraft serial
24315
Aircraft time
73,713 hours, 12,885 cycles
Part
Signal Cond Unit
Part number
285U0083202
Part serial
D00048
Condition
Defective
Location
Cargo Fire
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

MOMENTARY MAIN DECK FORWARD CARGO FIRE WARNING, SENT ACM'S TO VERIFY, NO FIRE OR SMOKE NOTED, CONTINUED TO DESTINATION, CHECKED MAIN DECK EVERY 20 MINUTES UNTIL ARRIVAL. R & R MAWEA CIRCUIT CARD A-15, IAW MM 31-51-02. OPS CHECK GOOD IAW MM 31-51-00 PERFORMED OPS CHECK OF FIRE AND SMOKE DETECTION SYS IAW MM 26-10-00, OPS CHECKS GOOD.

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