# SDR ASAA2021013133987

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2021
- Submitted: February 3, 2021
- Operation: Air carrier
- Aircraft: [N448AS](https://openairdocs.org/aircraft/N448AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36356
- Aircraft time: 16,936 hours, 5,416 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Controller
- Part number: 8300027904
- Part serial: 00414
- Condition: Faulty
- Location: Window Heat
- Part time: 14,866 hours, 4,747 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021013133987

## Discrepancy

R FORWARD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED AT GATE. GROUNDED - YES. FOUND LRU FAULT DURING BITE PROCEDURE. REMOVED AND REPLACED WINDOW HEAT LRU. REF B737-900 AMM 30-41 TASK 801. OK FOR SERVICE. BITE PROCEDURE PASSED.

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