# SDR ASAA1159445

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2011
- Submitted: April 15, 2011
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 13,117 hours, 3,922 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005604
- Part serial: 9738D
- Condition: Failed
- Location: Window Heat
- Part time: 13,117 hours, 3,922 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1159445

## Discrepancy

F/O OUTER WINDOW FRACTURED.  F/O NOTED ARCING ON UPPER RT FRAME FOLLOWED BY FRACTURE.  ACCOMPLISHED CHECKLIST.  NO FURTHER DETERIORATION.  REMOVED AND REPLACED R FRONT WINDOW CONTROLLER PER MM 30-41-11.  REPLACED F/O'S NR 1 WINDOW PER MM 56-11-11.  WINDOW HEAT CONTROLLER OPS CHECK GOOD PER MM 30-41-11.

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