# SDR HYIA20210407002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2021
- Submitted: April 7, 2021
- Operation: Air carrier
- Aircraft: [N406GA](https://openairdocs.org/aircraft/N406GA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 4020329
- Aircraft time: 39,382 hours, 39,896 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Attach Fitting
- Part number: 082255046
- Condition: Corroded
- Location: Horizontal Stab
- Part time: 39,382 hours, 39,896 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20210407002

## Discrepancy

DURING MAINTENANCE 2 SPOTS OF CORROSION WERE IDENTIFIED ON THE BOTTOM SURFACE OF THE UPPER HORIZONTAL LEG OF THE 0822550-46 WING ATTACH FITTING (RH UPPER AFT FITTING, FORWARD SPAR). THE FIRST SPOT MEASURES APPROXIMATELY .514 INCHES LONG, .330 INCHES WIDE, WITH A MAX DEPTH OF .011. THE SECOND MEASURES APPROXIMATELY 1.558 INCHES LONG, .440 INCHES WIDE, WITH A MAX DEPTH OF .015. THIS FITTING WILL BE REMOVED AND REPLACED USING NEW PARTS.

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