What was found
AIR TURNBACK. ON CLIMBOUT, THE FLIGHT CREW REPORTED THE ONLY MODE CONTROL WAS N1. NO AUTO-PILOT, NO AUTO THROTTLE OR MODE CONTROL. MAINTENANCE REMOVED AND REPLACED AIR DATA COMPUTER, FMCS AND OPERATIONS CHECK WAS NORMAL.
- Difficulty date
- July 24, 2002
- Submitted
- July 26, 2002
- Operation
- Air carrier
- Aircraft
- N312FL
- Make and model
- Boeing 7373L9
- Aircraft serial
- 24569
- Aircraft time
- 32,010 hours, 25,705 cycles
- System (JASC)
- 3460 · Flight Management Computing Hardware System
- Part
- Fmc
- Part number
- 1689L50701
- Part serial
- 0001462
- Condition
- Faulty
- Location
- E/E Bay
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.