# SDR DHL2001709003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2001
- Submitted: April 17, 2001
- Operation: Air carrier
- Aircraft: N709DH
- Make and model: Boeing 727-82C
- Registry model: [Boeing 727-82C](https://openairdocs.org/model/boeing-727-82c) (OpenAirDocs)
- Aircraft serial: 19968
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- 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/DHL2001709003

## Discrepancy

WITH AUTOPILOT AND ALT HOLD ENGAGED, A/C GAINS ABOUT 300 FT AN HOUR IN BOTH A & B MODE AND WITH AUX 1 NORMAL AND AUX VGS SELECTED.   TRANSFERRED ITEM TO DEFERRAL-ALT, SELECT MODE - DMI 5201 PER MEL 27-1-3,  PLACARD INSTALLED.  STATUS-OPEN

---
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.