# SDR MK1Y20220515006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2022
- Submitted: May 15, 2022
- Operation: General aviation
- Filed by: [Bedek Aviation Group, repair station MK1Y325K](https://openairdocs.org/faa-repair-station/MK1Y325K/bedek-aviation-group.md) (OpenAirDocs)
- Aircraft: [N390CM](https://openairdocs.org/aircraft/N390CM), registered now
- Make and model: Boeing 767
- Registry model: [Boeing 767](https://openairdocs.org/model/boeing-767) (OpenAirDocs)
- Aircraft serial: 32973
- Aircraft time: 50,897 hours, 22,727 cycles
- System (JASC): [7110 · Engine Cowling System](https://openairdocs.org/jasc/7110)
- Part: None
- Part number: 2242302539
- Part serial: UNKNOWNE
- Condition: Used
- Location: Zone 400
- Part time: 50,897 hours, 22,727 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: Z
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MK1Y20220515006

## Discrepancy

DURING MAINTENENCE INSPECTION FOUND DAMAGEON #1 ENGINE RIGHT CORE COL PRECOOLER EXIT DUCT UPPER SIDE (DEEP GROOVES, HOLE AND WORNAREA)

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