Service difficulty report · Circuit Card · Boeing 7673S1

Difficulty date
March 8, 2012
Submitted
March 8, 2012
Operation
Air carrier
Aircraft
N640GT
Make and model
Boeing 7673S1
Aircraft serial
25221
Aircraft time
68,468 hours, 14,469 cycles
Part
Circuit Card
Part number
644501
Part serial
7652
Condition
Malfunctioned
Location
Fire Detection
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

LEFT ENGINE FIRE LOOP 1 STATUS MESSAGE CAME ON IN FLT, WENT AWAY, NEVER RETURNED. REPLACED CARD M683 IAW AMM 26-11-02 OPS CHECKED OK. "FIRE DETECTOR CARD".

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