What was found
THE "A" AUTO PILOT WILL NOT ENGAGE. FFR SHOWS CHANNEL AAP DISCONNECT SWITCH INPUT INVALID. REPLACED S231 SWITCH IAW 22-11-41.
- Difficulty date
- October 29, 2007
- Submitted
- November 28, 2007
- Operation
- Air carrier
- Aircraft
- N583AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35681
- Aircraft time
- 967 hours, 329 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Switch
- Part number
- 721101A1
- Condition
- Faulty
- Location
- Autopilot Sys
- Stage of operation
- UK
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.