# SDR ASAA2023032042443

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2023
- Submitted: March 22, 2023
- Operation: Air carrier
- Aircraft: [N597AS](https://openairdocs.org/aircraft/N597AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35689
- Aircraft time: 53,747 hours, 16,036 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: LD
- 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/ASAA2023032042443

## Discrepancy

LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED A SECOND TIME UPON LANDING. GROUNDED - YES. PERFORMED WHCU BITE REF B737-800 FIM 30-41 TASK 801. LH SIDE WHCU FAULTED SENSOR ON PREV FLT. BIT VERIFY SHOWED TEST OK. PERFORMED RESISTANCE CHECK OF LH SIDE WINDOW REF B737-800 AMM 30-41-21. RESISTANCE CHECKED OK. PERFORMED RESISTANCE CHECK OF COIL CORD PINS 1 AND 2. NO DEFECTS NOTED REF B737-800 WDM 30-41-12.

---
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.