# SDR ASAA2023072944292

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2023
- Submitted: July 31, 2023
- Operation: Air carrier
- Aircraft: [N568AS](https://openairdocs.org/aircraft/N568AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35183
- Aircraft time: 57,891 hours, 17,299 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023072944292

## Discrepancy

IAS KNOB ON MCP CYCLES UP AND DOWN A/S WHEN TURNING IN SINGLE DIRECTION. GROUNDED - YES. OPERATED SPEED KNOB THROUGHOUT RANGE, AND AT MULTIPLE DIFFERENT SPEEDS OBSERVING CORRECT OPERATION. NO SKIPS, AND CORRECT "COUNT" PER CLICK. ACCOMPLISHED 70.54 EXTENDED MAINTENANCE TEST. ALL TESTS PASS. REF B737-800 AMM 22-11-00. ETOPS GROUND VERIFICATION SUCCESSFUL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.