# SDR CALA2023050501379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2023
- Submitted: May 5, 2023
- Operation: Air carrier
- Aircraft: [N45905](https://openairdocs.org/aircraft/N45905), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 34825
- Aircraft time: 40,624 hours, 5,018 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Heater
- Part number: NA
- Condition: Warning Message
- Location: Rt Fwd Wndw
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023050501379

## Discrepancy

WINDOW HEAT R FWD ADVISORY LOSS OF RIGHT FORWARD WINDOW HEAT  (PRIMARY).  NR 1 WINDOW CRACKED IN FLT DURING CRUISE, UNKNOWN CAUSE AT THIS STAGE BUT SEVERE WINDOW HEAT ARCING OCCURED AS A RESULT. DUE TO THIS EVENT R WINDOW HEAT PROTECTION HEAT UNIT REPLACED REF AMM 30-41-03. ALL OPS NORMAL AND P300 WINDOW HEAT TEST PASSSED.  R WINDOW OUTER PANE SHATTER, WINDOW REMOVED IAW AMM DMC-B787-A-56-11-01-00A-520A-A. WINDOW RETAINER, WINDOW EDGE PROTECTOR AND NUTPLATE AND NUTPLATE STRIP INSPECTED FOR CRACKS, CORROSION OR OTHER DAMAGE. INSPECTION OK.  R WINDOW REPLACED IAW AMM REF DMC-B787-A-56-11-01-00A-720A-A. CABIN PRESS CHECK CARRIED OUT IAW AMM,   DMC-B787-A-05-51-24-00A-280A-A. CHECK WITHIN LIMITS.

---
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.