# SDR CALA2012033000219

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2012
- Submitted: March 30, 2012
- Operation: Air carrier
- Aircraft: [N33284](https://openairdocs.org/aircraft/N33284), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31635
- Aircraft time: 27,265 hours, 9,280 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Drive Unit
- Part number: 6225135202
- Part serial: 11BVN
- Condition: Inoperative
- Location: Weather Radar
- Part time: 27,259 hours, 9,279 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/CALA2012033000219

## Discrepancy

RADAR FAILS CONTINUOUSLY WITH "WXR FAIL"ICON, ON DISPLAY WITH RADAR OFF ON SHORT FINAL APPROACH "PWS FAIL "INTERMITTENT.  NOTE RADAR TEST OK EVERYTIME WITH NO FAULTS.  REPLACED UNIT DRIVE PEDESTAL AND TRANSCEIVER WX RADAR REF M/M 3 4-43-11-400-802 AND 34-43-11-000-801 TRANCEIVER M/M REF 34-43- 41-000-801 AND 34-43-41-400-801.  OPS TEST OK.  ROTABLE PARTS CHANGE WAS INDICATED - TT # 1458712  SN OFF 00011 TT # 1492026  SN OFF 09265 IPC REFERENCE # IPC REFERENCE # UNIT, DRIVE PED  OFF 29-3443-9-0003 8811 ON 29-3443-9-0003 4741 TRANSCEIVER, WX  OFF 29-3443-9-0006 9265 ON 29-3443-9-0006 9236.

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