# SDR UIEA2025042500571

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2025
- Submitted: April 25, 2025
- Operation: Air carrier
- Aircraft: [N508KZ](https://openairdocs.org/aircraft/N508KZ), registered now
- Make and model: Boeing 747-4KZF
- Registry model: [Boeing 747-4KZF](https://openairdocs.org/model/boeing-747-4kzf) (OpenAirDocs)
- Aircraft serial: 36135
- Aircraft time: 56,154 hours, 10,068 cycles
- System (JASC): [5610 · Flight Compartment Windows](https://openairdocs.org/jasc/5610)
- Part: Windshield
- Part number: 141U480011
- Part serial: TLS32997
- Condition: Cracked
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025042500571

## Discrepancy

LEFT FRONT WINDSHIELD HAS INNER PANE CRACK.(<P>REMOVED AND REPLACED L1 WINDSHIELD ASSY PER AMM 56-11-01/401 AND AIPC 56-11-01-02A ITEM 25. REMOVED AND REPLACED WINDOW HEAT CONTROL UNIT PER AMM 30-41-01/401, APIC 30-41-01-01E ITEM 20. OPS CHECK NORMAL.</P>)

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