# SDR AALA201907079010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2019
- Submitted: July 8, 2019
- Operation: Air carrier
- Aircraft: [N948AN](https://openairdocs.org/aircraft/N948AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30086
- Aircraft time: 56,697 hours, 23,168 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Drive Unit
- Part number: 6225135
- Part serial: 934M
- Condition: Unreliable
- Location: Weather Radar
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201907079010

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT REPORTS WX FAIL AT BOTH CA AND FO DISPLAYS.  RADAR WORKS INTERMITTENTLY.  FAILURE OCCURS WHEN AIRCRAFT IS IN ANY ANGLE OF BANK/TURN.  FLYING IN LEVEL FLIGHT RADAR WILL WORK NORMALLY.  MAINTENANCE REMOVED AND REPLACED WX DRIVE UNIT.  OPS CHECKED NORMAL IAW AMM 34-43-11.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.