What was found
ATS WILL NOT STAY ENGAGED. ACFT GROUNDED. VERIFIED DEFECT, NR 2 SERVO MOTOR FAILED SERVO MOTOR TEST. R & R NR 2 A/T SERVO MOTOR REF MM 22-31-91, OPS CHECK NORMAL.
- Difficulty date
- April 1, 2014
- Submitted
- April 3, 2014
- Operation
- Air carrier
- Aircraft
- N457AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36355
- Aircraft time
- 478 hours, 158 cycles
- System (JASC)
- 2230 · Auto Throttle System
- Part
- Servo
- Part number
- 305RAA1
- Part serial
- AS09881
- Condition
- Failed
- Location
- Autothrottle
- Part time
- 483 hours, 160 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.