# SDR HYIA20220511001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2022
- Submitted: May 11, 2022
- Operation: Air carrier
- Aircraft: [N83PB](https://openairdocs.org/aircraft/N83PB), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0350
- Aircraft time: 38,976 hours, 41,297 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Spar Cap
- Part number: 512204123
- Condition: Corroded
- Location: Zone 500
- Part time: 38,976 hours, 41,297 cycles
- 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/HYIA20220511001

## Discrepancy

WHILE PERFORMING OTHER MAINTENANCE, CORROSION WAS IDENTIFIED ON THE LEFT HAND AFT LOWER OUTBOARD SPAR CAP (P/N 5122041-23) AT WING STATION 222.0 TO 229.71.  THE DEEPEST AREA OF  CORROSION WAS MEASURED AT .033.  THIS SPAR CAP WAS REPLACED WITH A FACTORY NEW PART.

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