SDR 2002F00377

Service difficulty report · Fmc · Boeing 75733N

Difficulty date: March 1, 2002
Submitted: April 15, 2002
Operation: Air carrier
Aircraft: N554TZ
Make and model: Boeing 75733N
Aircraft serial: 32588
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Faulty
Location: E/E Bay
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

WHILE EN ROUTE, FL370, SMOOTH AIR, AIRSPEED ORANGE BUG SLOWED TO 220 KT, THEN RETURNED TO NORMAL SPEED FOLLOWED BY AUTOPILOT AND AUTOTHROTTLE DISCONNECT. AUTOPILOT RECONNECTED OK, AUTOTHROTTLE DIFFICULT TO RECONNECT. MAINTENANCE REPLACED LEFT FMC. (M)

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