# SDR ASAA2022042538117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2022
- Submitted: April 26, 2022
- Operation: Air carrier
- Aircraft: [N973AK](https://openairdocs.org/aircraft/N973AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43346
- Aircraft time: 193 hours, 65 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Overheat
- Part number: UNKNOWN
- Condition: Warning Light
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: M
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022042538117

## Discrepancy

LEFT FWD WINDOW HEAT "OVERHEAT" ANNUNCIATOR ILLUMINATED/ RAN QRH/ OVERHEAT ANNUNCIATOR EXTINGUISHED/ CONTINUED NORMAL OPERATION. INFO ONLY. GROUNDED - YES. INFO NOTED, PERFORMED (WHCU) BIT TEST IAW PER B737-9 AMM 30-41-11-710-801,BIT TEST OK.

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