# SDR ASAA2023080544445

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2023
- Submitted: August 7, 2023
- Operation: Air carrier
- Aircraft: [N467AS](https://openairdocs.org/aircraft/N467AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 33,895 hours, 10,817 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: M
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023080544445

## Discrepancy

LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. UPON ARRIVAL TO AIRCRAFT ALL WINDOW HEAT WAS OPERATIONAL. PERFORMED WHCU BITE IAW FIM 30-41 TASK 801 AND FOUND A WHCU LRU FAULT IN FAULT HISTORY. PERFORMED FIM 30-41 TASK 807 AND FAULT IS AND WAS NOT ACTIVE. CURRENT BITE CHECKS GOOD EVERY TIME AND POWER TEST IN FIM CHECKS GOOD. PER FIM 30-41 TASK 807 OPS TEST GOOD FAULT CLEAR.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.