# SDR DHL2001745016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2001
- Submitted: October 26, 2001
- Operation: Air carrier
- Aircraft: N745DH
- Make and model: Boeing 727224
- Aircraft serial: 20665
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Condition: Faulty
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2001745016

## Discrepancy

ALTITUDE SELECTOR MODE WHEN ENGAGED, WILL START TO PORPOISE IN BOTH A & B MODE.  REMOVED AND REPLACED AUTOPILOT CONTROL PANEL AND PERFORMED OPS CHECK IAW B727 MM 22-11-181.  OPS CHECK GOOD.

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