What was found
HDG SELECT DOES NOT LIGHT UP WHEN ENGAGED (HDG SELECT ENGAGES BUT LIGHT ON SWITCH DOES NOT LIGHT UP). TESTED GOOD ON PREFLIGHT LIGHTS TEST. GROUNDED - YES. ACCOMPLISHED MCP INSTALL TEST AMM 22-11-34 OPS CHECK NORMAL.
- Difficulty date
- July 21, 2019
- Submitted
- July 24, 2019
- Operation
- Air carrier
- Aircraft
- N579AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35187
- Aircraft time
- 47,097 hours, 13,979 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Unknown
- Condition
- Malfunctioned
- Location
- Cockpit
- Stage of operation
- NR
- 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.