# SDR 20010124SG003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2001
- Submitted: January 24, 2001
- Operation: Air carrier
- Aircraft: N806MA
- Make and model: Boeing 727225
- Aircraft serial: 22437
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Computer
- Part number: 5223712018
- Condition: Malfunctioned
- Location: E/E Compt
- Stage of operation: CR
- How discovered: O
- Nature of condition: F, I
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20010124SG003

## Discrepancy

AUTO PILOT PORPOISES IN CRUISE MODE ''A'' CONTINUOUSLY TRIMS STAB UP AND DOWN.  REMOVED AND REPLACED AUTO PILOT PITCH COMPUTER.  OPS CHECK OK IAW MM 22-11-12.  (M)

---
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.