# SDR MK1Y20221211011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2022
- Submitted: December 12, 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: N155DL
- Make and model: Boeing 767-300
- Registry model: [Boeing 767-300](https://openairdocs.org/model/boeing-767-300) (OpenAirDocs)
- Aircraft serial: 25269
- Aircraft time: 123,354 hours, 22,160 cycles
- System (JASC): [5400 · Nacelle/Pylon Structure](https://openairdocs.org/jasc/5400)
- Part: Skin
- Condition: None
- 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/MK1Y20221211011

## Discrepancy

EXISTING UNDOCUMENTED DOUBLER REPAIR ON THE EXTERNAL CORE COWL SKIN LOCATED INBD SIDE ENG#2 ON THE TITANIUM FAIRING IN THE CORNER AREA UPPER EDGE BETWEEN NAC STA 294 TO 299 AT 1 O’CLOCK. REPAIR SIZE: 5”X4.5”.         P/N 224-2301-521, S/N 3889001.

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