# SDR ASAA2021091035927

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2021
- Submitted: September 14, 2021
- Operation: Air carrier
- Aircraft: [N517AS](https://openairdocs.org/aircraft/N517AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35197
- Aircraft time: 46,123 hours, 13,477 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Selector
- Condition: Stuck
- Location: Mcp
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021091035927

## Discrepancy

CAPT MCP COURSE SELECTOR STUCK ON 020* - WILL NOT MOVE AFTER SELECTING APU POWER, SELECTOR APPEARS NORMAL. GROUNDED - YES. ACCOMP LRU REPLACEMENT TEST FOR MCP. TEST PASS ALSO ACCOMP LAND VERIFY TEST BOTH PASS NO FAULTS. REF B737-800 AMM 22-11-34-839-001 & 22-11-00-700-801.

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