# SDR ASAA2023060343432

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2023
- Submitted: June 5, 2023
- Operation: Air carrier
- Aircraft: [N962AK](https://openairdocs.org/aircraft/N962AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44078
- Aircraft time: 582 hours, 185 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- 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/ASAA2023060343432

## Discrepancy

AUTOPILOT DISENGAGE BUTTON WILL NOT SILENCE AURAL A/P DISENGAGE TONE FROM EITHER YOKE. GROUNDED - YES. VERIFIED FAULT, FOUND C/B OPEN AT P18-1 WARN LIGHT (BAT) (D1). ACCOMP INSP OF C/B OPEN [18-1 GVI NO DEFECTS NOTED, CLOSED P18-1 & CLOSED C/B (D1). ACCOMP LAND VERIFY TEST, TEST PASS DFCS BITE GRP 49 ALL TEST PASS C/B STAYED CLOSED. REF B737-9 AMM 22-11-00-700-801, AMM 20-60-01-860-801 & B737-9 WDM 22-14-11-3.

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