# SDR ANCF200700025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2007
- Submitted: October 23, 2007
- Operation: Air carrier
- Aircraft: [N521NA](https://openairdocs.org/aircraft/N521NA), registered now
- Make and model: Boeing 757236
- Aircraft serial: 25592
- Aircraft time: 48,092 hours, 15,603 cycles
- Engine: Rroyce RB211535E4
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 6224717004
- Part serial: 1181
- Condition: Malfunctioned
- Location: Afcs
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ANCF200700025

## Discrepancy

A/T FAILED TO ENGAGE  WHEN EPR MODE SELECTED ON T/O THE EPR SW DID NOT ENGAGE. THE T/O WAS DISCONNECTED,  IAW MCC THE PROCEDURE FOR T/O  WILL PERFORM MANUALLY A SECOND ATTEMPT WAS MADE AND THE TIME TO ENGAGE THE AUTOPILOT INFLIGHT DID NOT ENGAGE L,C OR R.  IAW AMM 22-11-02/201 THE AFCS CONTROL PANEL WAS REPLACED AND PERFORMED TEST MCDP GROUND 04 MCP IAW AMM 22-00-02/201 AND 22-11-02/207 IS SATISFACTORY.

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