What was found
F/O A/P/A/T/FMC ANNUNCIATOR 1-2 TEST SWITCH LOOSE. GROUNDED - YES. 16 CIRCUIT BREAKERS PULLED AND COLLARED CLOSED 16 CIRCUIT BREAKERS CLOSED R&R AUTOPILOT ANNUNCIATOR PER B737-900 AMM 22-11-32 PB 401 OPS CHECK GOOD, OK FOR SERVICE.
- Difficulty date
- November 7, 2019
- Submitted
- November 13, 2019
- Operation
- Air carrier
- Aircraft
- N457AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36355
- Aircraft time
- 22,794 hours, 7,406 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Annunciator
- Part number
- D43456001
- Part serial
- 13221122013
- Condition
- Loose
- Location
- Cockpit
- Part time
- 22,799 hours, 7,407 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.