# SDR HYIA201504130001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2015
- Submitted: April 13, 2015
- Operation: Air carrier
- Aircraft: [N494BC](https://openairdocs.org/aircraft/N494BC), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0308
- Aircraft time: 30,732 hours
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Part number: 52220103
- Condition: Chafed
- Location: Lt Wing
- Part time: 30,732 hours
- 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/HYIA201504130001

## Discrepancy

UPON REMOVAL OF LT MLG HYD EXTEND & RETRACT ACTUATOR TO FACILITATE OTHER MAINTENANCE, A HOLE WAS DISCOVERED IN THE LT WING FWD SPAR WEB.  THE HOLE IS LOCATED AT APPROX LT WS 91.62 & WAS CREATED WHEN COTTER PIN USED TO SAFETY HARDWARE STACK UP AT UPPER MLG ACTUATOR ATTACH POINT CHAFED THROUGH WEB.  THE HOLE MEASURES .13 HIGH BY .253 ACROSS & IS LOCATED JUST BELOW VERTICAL LEG OF UPPER FWD WING SPAR CAP.  REPAIR AREA IAW EITHER OEM OR DER SUPPORTED REPAIR DEFINITION.  A SUPPLEMENT WILL BE SUBMITTED WITH THIS SDR TO FURTHER ILLUSTRATE DAMAGE POINT.

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