# SDR CALA2015080700654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2015
- Submitted: August 7, 2015
- Operation: Air carrier
- Aircraft: [N57852](https://openairdocs.org/aircraft/N57852), registered now
- Make and model: Boeing 757324
- Aircraft serial: 32811
- Aircraft time: 44,433 hours, 14,724 cycles
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Sliding Window
- Part number: 141N485065
- Part serial: 3007
- Condition: Unserviceable
- Location: Cocpkit
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2015080700654

## Discrepancy

AT CRUISE ALTITUDE FL 320 VERY LOUD WHISTLING SQUEALING, DESCENDED TO FL 210 & BECAME MORE DIFFICULT FOR CREW TO COMMUNICATE.  SUSPECT AREA OF L2 OR L1 WINDOW.  REPLACED WINDOW, PRESSURIZED ACFT.  OPERATIONS CHECK NORMAL IAW AMM 56-11-0 2.

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