# SDR ASAA2021011533886

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2021
- Submitted: January 20, 2021
- Operation: Air carrier
- Aircraft: [N514AS](https://openairdocs.org/aircraft/N514AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35193
- Aircraft time: 44,780 hours, 13,308 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Controller
- Part number: 8300005604
- Part serial: 0584C
- Condition: Inoperative
- Location: Window Heat
- Part time: 31,957 hours, 11,214 cycles
- Stage of operation: NR
- 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/ASAA2021011533886

## Discrepancy

LT SIDE WINDOW HEAT INOPERABLE.  GROUNDED-YES.  REF B737-800 FIM 30-41 TASK 801, REMOVED AND REPLACED WHCU M322, IAW B737-800 AMM 30-41-11/401.  WHCU BITE TESTED GOOD AND LEFT SIDE WINDOW HEAT OPERATIONS CHECKED GOOD.

---
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.
