# SDR 99UAL900667

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 25, 1999
- Submitted: October 9, 2000
- Operation: Air carrier
- Aircraft: N766UA
- Make and model: Boeing 777222
- Aircraft serial: 26917
- Aircraft time: 19,508 hours, 3,935 cycles
- Engine: Pwa PW4077
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Afcs
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900667

## Discrepancy

REJECTED TAKEOFF AT 135 KIAS.  RETURNED TO GATE.  *S/D*  ENGINEERING AND OPERATIONS ANALYSIS HAS CONCLUDED THAT THE AIRCRAFT SYSTEMS WERE OPERATING WITHIN NORMAL PARAMETERS AS THE AIRCRAFT WAS CONFIGURED DURING THE TAKEOFF ROLL.  CONTROL FORCES WITH THE AUTO-PILOT ENGAGED WILL BE SIGNIFICANTLY GREATER THAN FORCES NORMALLY ENCOUNTERED BY THE CREW WITH THE AUTO-PILOT DISENGAGED.

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