# SDR MK1Y20221211014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2022
- Submitted: December 19, 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: Doubler
- 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/MK1Y20221211014

## Discrepancy

DURING MAINTENANCE INSPECTION AT IAI, SHOP FOUND THREE EXISTING UNDOCUMENTED DOUBLER REPAIRS, ONE ON EACH ACOUSTIC PANEL OF ENG #1 INLET COWL. THE REPAIR ON LEFT ACOUSTIC PANEL (LOCATED BETWEEN 9 TO 10 O’CLOCK) WAS FOUND WITH CORROSION UNDER IT. ALL REPAIRS WERE INSTALLED WITH HI-LOCK’S.     IN ADDITION, SHOP FOUND SEVERAL FILLERS REPAIRS SCATTERED ON ALL THREE PANELS AND DENT 1.48” NEXT TO EXISTING DOUBLER REPAIR ON LEFT ACOUSTIC PANEL (WITH THE CORROSION).

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