# SDR MK1Y20210614004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2021
- Submitted: June 14, 2021
- Operation: General aviation
- Filed by: [Bedek Aviation Group, repair station MK1Y325K](https://openairdocs.org/faa-repair-station/MK1Y325K/bedek-aviation-group.md) (OpenAirDocs)
- Aircraft: N399AN
- Make and model: Boeing 767323
- Aircraft serial: 29606
- Aircraft time: 78,135 hours, 13,170 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Ring
- Condition: Delaminated
- Location: Thrust Reverser
- 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/MK1Y20210614004

## Discrepancy

:  ENGINE #2, OUTBD THRUST REVERSER, OUTER RING P/N 491B1330003: DURING MAINTENANCE INSPECTION AT IAI, FLANGE OF THE UPPER TORQUE BOX OUTR RING WAS FOUND DAMAGED BY INTERGRANULAR CORROSION, AND THE FLANGE WAS FOUND DELAMINATED ALONG 5 INCH.

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