What was found
AUTO THROTTLE WILL NOT STAY ENGAGED. ACFT GROUNDED. MULTIPLE ASM 2 FAULTS LOGGED IN LEG 8. DUE TO HISTORY REMOVED AND REPLACED THE NR 2 ASM IAW AMM 22-31-91, OPS CHECKED NORMAL.
- Difficulty date
- December 15, 2017
- Submitted
- December 19, 2017
- Operation
- Air carrier
- Aircraft
- N442AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43293
- Aircraft time
- 16,158 hours, 5,329 cycles
- System (JASC)
- 2230 · Auto Throttle System
- Part
- Servo
- Part number
- 305RAA1
- Part serial
- AS10179
- Condition
- Faulted
- Location
- Autothrottle
- Part time
- 13,628 hours, 4,507 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.