# SDR IPXA2025102909684

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 2025
- Submitted: October 29, 2025
- Operation: Air carrier
- Aircraft: [N363UP](https://openairdocs.org/aircraft/N363UP), registered now
- Make and model: Boeing 767346
- Aircraft serial: 33494
- Aircraft time: 53,765 hours, 18,931 cycles
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Window
- Part number: SF15141T48710
- Part serial: TAG01712097
- Condition: Cracked
- Location: Zone 200
- 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/IPXA2025102909684

## Discrepancy

AIR TURN BACK PRESSURIZATION LEAK AFTER APPROXIMATELY 60 MINUTES ENROUTE-INCREDIBLY LOUD SQUEAL MADE COMM DIFFICULT/ATC+ BETWEEN FLT CREW. NOISE STOPPED BELOW 17000 FEET.  ACCOMPLISHED T/S AND INSPECTION IAW AMM 56-11-00-210-016 REV 146. FOUND CRACK APP 3 INCH AT LOWER AFT CORNER OF THE WINDOW #2.

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