# SDR HYIA20240828002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2024
- Submitted: August 28, 2024
- Operation: Air carrier
- Aircraft: [N3249M](https://openairdocs.org/aircraft/N3249M), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0637
- Aircraft time: 34,903 hours, 40,515 cycles
- System (JASC): [5415 · Nacelle/Pylon, Attach Fittings](https://openairdocs.org/jasc/5415)
- Part: Fitting
- Part number: 529202923
- Condition: Cracked
- Location: Zone 400
- Part time: 17,246 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20240828002

## Discrepancy

WHILE PERFORMING THE LIGHTED BORESCOPE PROCEDURE AS OUTLINED IN TEXTRON MEL-54-02 R2 TO SATISFY AD2017-10-19, A CRACK WAS IDENTIFIED ON THE OUTBOARD SIDE OF THE LEFT-HAND OUTBOARD FITTING.  THIS CRACK MEASURES .130 AND IS CONSISTENT WITH OTHER FOUND USING THIS SAME METHOD.  THIS FITTING WILL BE REPLACED WITH A FACTORY NEW PART.

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