# SDR UPS01435032

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2001
- Submitted: February 22, 2001
- Operation: Air carrier
- Aircraft: [N671UP](https://openairdocs.org/aircraft/N671UP), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20323
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Computer
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS01435032

## Discrepancy

INSPECTION TYPE:N/A, WHILE CLIMBING THRU FL 345 TO FL 350 (500 FT TO GO), AT 500 FT PER MINUTE THE A-AUTOPILOT PITCHED UP TO CAPTURE THE ALTITUDE WITH A 1500 TO 2000 FPM CLIMB.  CREW HAD TO INTERCEDE TO PREVENT OVERSHOOT IN RVSM AIRSPACE.  RESEATED A A/P PITCH CHANNEL AND TESTED PER MM 22-12-01.  NO FAULTS FOUND.

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