What was found
IAS/MACH KNOB INCREASES & DECREASES MACH VALUE MORE THAN COMMANDED FOR EACH CLICK OF THE KNOB. GROUNDED - YES. ACCOMPLISHED MCP OP CHK REFERENCE B737-800 AMM 22-11-34-740-801. NO DEFECTS NOTED OP CHK GOOD.
- Difficulty date
- July 27, 2022
- Submitted
- July 29, 2022
- Operation
- Air carrier
- Aircraft
- N559AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 56,229 hours, 16,482 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Knob
- Part number
- UNKNOWN
- Condition
- Inaccurate
- Location
- Unknown
- 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.