# Incident 20050706017799I: Doug DC983, San Francisco, CA, July 6, 2005

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 6, 2005, 11:50 local time
- Place: San Francisco, CA
- Airport: San Francisco International
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: AALA
- Location: 37.6188° N, 122.3754° W: Placed by OpenAirDocs at SAN FRANCISCO INTL (SFO), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6188&lon=-122.3754&mi=10
- Aircraft: N595AA, registered now (https://openairdocs.org/aircraft/N595AA) (OpenAirDocs)
- Registry model: Mcdonnell Douglas DC-9-83(MD-83) (registry code 3022083, https://openairdocs.org/model/mcdonnell-douglas-dc-9-83-md-83) (OpenAirDocs)
- Registry engine: Pratt & Whitney JT8D series (registry code 52053, https://openairdocs.org/engine/pratt-whitney-jt8d-series) (OpenAirDocs)
- Reported make and model: DOUG DC983
- People aboard: 132
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20050706017799I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON DEPARTURE FROM SJC, APPROXIMATELY 14,000 FEET MSL WITH THE AUTOPILOT ENGAGED, THE CAPTAIN NOTICED THE CONTROL COLUMN CYCLING FORWARD AND AFT ONCE EVERY 20 SECONDS. "PERF" WAS DISCONNECTED, AND THE CAPTAIN CLIMBED USING MACH HOLD AND EPR LIMIT. THIS HAD NO EFFECT, AND THE CONTROL COLUMN CONTINUED TO CYCLE FORWARD AND AFT ONCE EVERY 20-30 SECONDS. UPON REACING CRUISE ALTITUDE, FL 330, WITH THE AUTOPILOT ENGAGED, THE CONTROL COLUMN CONTINUED TO CYCLE FORWARD AND AFT. THE CAPTAIN DISCONNECTED THE AUTOPILOT, HAND-FLEW THE AIRCRAFT, AND NOTICED THE CONTROL COLUMN CONTINUED TO CYCLE FORWARD AND AFT. THE CAPTAIN HAD THE FIRST OFFICER TAKE THE CONTROLS TO SEE IF HE COULD FEEL AND SEE WHAT WAS OCCURRING. THE FIRST OFFICER EXPERIENCED THE SAME INDICATIONS. THE CAPTAIN DIVERTED TO SFO AND LANDED. MAINTENANCE CHECKED THE AIRCRAFT AND FOUND NO APPARENT DISCREPANCIES. MAINTENANCE REMOVED AND REPLACED THE LEFT AND RIGHT AOA SENSORS, INSPECTED THE HORIZONTAL-STABILIZER JACKSCREW, AND REMOVED AND REPLACED THE ELEVATOR-LOAD-FEEL SPRING AND THE AIRCRAFT MACH-TRIM ACTUATOR. THE AIRCRAFT WAS FLOWN ON A FUNCTIONAL CHECK FLIGHT, WHICH WAS SATISFACTORY, AND RETURNED TO SERVICE.

## Other reports on N595AA (2)

Matched to the same aircraft by N-number and date.

- [Incident 19940818034619I](https://openairdocs.org/incident/19940818034619I), Aug 18, 1994: Doug DC983 (N595AA), Dallas-Ft Worth, TX, Minor damage. Saw catering truck on collision course. Stopped taxi. Truck hit wing,driver failed to maintain vigilence.
- [Incident 19921203054699I](https://openairdocs.org/incident/19921203054699I), Dec 3, 1992: Doug DC983 (N595AA), Akron, OH. Pilot taxied his aircraft off ramp taxiway into mud. Area covered with ice. ATIS stated all areas sanded.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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