SDR EIA2005003

Service difficulty report · Control Module · Boeing 747212B

Difficulty date: January 27, 2005
Submitted: April 25, 2005
Operation: Air carrier
Aircraft: N482EV
Make and model: Boeing 747212B
Aircraft serial: 20713
Aircraft time: 95,829 hours, 22,242 cycles
System (JASC): 2612 · Fire Detection
Part: Control Module
Condition: Faulty
Location: Fire Detection
Stage of operation: CR
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

NR 2A FIRE LOOP FLICKERING IN FLIGHT, TESTED ALL AND NR 2A WOULD ONLY RISE TO 3/4 DEFLECTION, NR 3B DID NOT TEST DEFERRED. REPLACED FIRE DETECTION CONTROL ELECTRONIC MODULE PER MM 26-11-03, OPS CHECKED NR 2A FIRE LOOP AND 3B FIRE LOOP, OPS CHECKED OK. FLIGHT DIVERTED TO JFK FOR MAINTENANCE PURPOSES.

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