# SDR 98UAL900502

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N7455U
- Make and model: Boeing 727222
- Aircraft serial: 21909
- Engine: Pwa JT8D15
- System (JASC): [2760 · Drag Control System](https://openairdocs.org/jasc/2760)
- Part: Control Mech
- Condition: Malfunctioned
- Location: Speed Brakes
- Stage of operation: DE
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98UAL900502

## Discrepancy

WHEN THE SPEED BRAKE IS DEPLOYED, AIRCRAFT BANKS TO THE LEFT EXCESSIVELY.  AILERON TRIM SET AT 0.  WHEN THE B-SYSTEM IS OFF, THE AIRCRAFT DOES NOT ROLL.

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