# SDR CALA2026060116713

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2026
- Submitted: June 1, 2026
- Operation: Air carrier
- Aircraft: [N78511](https://openairdocs.org/aircraft/N78511), registered now
- Make and model: Boeing 737824
- Aircraft serial: 33459
- Aircraft time: 57,876 hours, 20,937 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Drive Unit
- Part number: 6225135202
- Part serial: 752
- Condition: Faulted
- Location: Wx Radar
- Part time: 55,496 hours, 19,179 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026060116713

## Discrepancy

WXR FAIL BOTH SIDES WXR FAIL ATTN REF LP 9066608 FOR MAINTENANCE ACTION PERFORMED. LP 9066608:  DUE TO HISTORY OF PWS AND WX INOP, PLEASE CHANGE WX DRIVE UNIT. . RAR WX DRIVE UNIT. REF AMM 34-43-11/401. INSTALLATION OPS CHECK WILL STILL NEED TO BE PERFORMED.  PERFORMED WXR SYSTEM OPERATIONAL TEST. REF AMM 34-43-11-400-802. OPS TEST OK.

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