# SDR UALA2011031601285

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2011
- Submitted: April 4, 2011
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 72,885 hours, 20,991 cycles
- Engine: Pwa PW2037
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Drive Unit
- Condition: Malfunctioned
- Location: Wx Radar
- Component: Wx Radar
- Component part number: 20414440401
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011031601285

## Discrepancy

WX RADAR AUTO TILT SHOWS EXCESS GROUND RETURN.   INBOUND CREW DESCRIBED WX RADAR DISPLAY AS OK BUT NOT FOLLOWING TRACK OF A-C IN AUTO MODE NOR RESPONDING CORRECTLY IN MANUAL MODE.  REPLACED DRIVE UNIT.

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