# SDR AALA202108192108

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2021
- Submitted: August 20, 2021
- Operation: Air carrier
- Aircraft: [N923NN](https://openairdocs.org/aircraft/N923NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31167
- Aircraft time: 25,255 hours, 10,369 cycles
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Window
- Condition: Cracked
- Location: Cockpit L1
- 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/AALA202108192108

## Discrepancy

AIRCRAFT WAS GROUNDED: L1 WINDOW CRACKED IN NUMEROUS LOCATIONS IMMEDIATELY AFTER L1 OVERHEAT LIGHT ILLUMINATION. REPLACED L1 WINDOW WITH SERVICEABLE UNIT IAW WORKCARD 08C21156006.

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