# SDR IPXA2025010305368

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2025
- Submitted: January 6, 2025
- Operation: Air carrier
- Aircraft: [N427UP](https://openairdocs.org/aircraft/N427UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25458
- Aircraft time: 32,201 hours, 22,388 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Controller
- Condition: Malfunctioned
- Location: Zone 200
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2025010305368

## Discrepancy

*SDR FILED OPEN* L SIDE WINDOW *EICAS( ACCOMPLISHED TROUBLESHOOTING PER WDM 30-41-12-1 REV 97. SWAPPED WINDOW HEAT CONTROLLER LEFT WITH RIGHT. SAME FAULT. SWAPPED BACK TO ORIGINAL POSITION PER AMM 30-41-01 PB 401 REV 135. MEASURED RESISTANCE ON WINDOW CONTROL AND SPARE SENSOR. FOUND WITHIN LIMITS. MEASURED WINDOW HEATER J8. FOUND 8,8 MEGA OHM, OUT OF LIMIT. WINDOW REPLACEMENT REQUIRED. PART ORDERED. DMI NREMAINS OPEN.<BR>CRN97059394   Q9DY421Y

---
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.