# SDR IXXA202271603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2022
- Submitted: July 16, 2022
- Operation: Air carrier
- Aircraft: [N311AZ](https://openairdocs.org/aircraft/N311AZ), registered now
- Make and model: Boeing 767-300
- Registry model: [Boeing 767-300](https://openairdocs.org/model/boeing-767-300) (OpenAirDocs)
- Aircraft serial: 25316
- Aircraft time: 97,228 hours, 30,730 cycles
- System (JASC): [3310 · Flight Compartment Lighting](https://openairdocs.org/jasc/3310)
- Part: Precooler
- Part number: 224M4761525
- Part serial: 0390
- Condition: Chafed
- Location: Zone 500
- Part time: 97,228 hours, 30,730 cycles
- Component: NSN
- Component part number: 224M4761525
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IXXA202271603

## Discrepancy

SEVERE CHAFING AND MISSING MATERIAL ON THE PRE-COOLER EXIT DUCT SKIN.

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