# SDR E81RJT227916A

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2010
- Submitted: April 12, 2010
- Operation: Air carrier
- Filed by: [Chronos Aviation, LLC., repair station E81R759X](https://openairdocs.org/faa-repair-station/E81R759X/chronos-aviation-llc.md) (OpenAirDocs)
- Aircraft: N445CT
- Make and model: Beech 400A
- Registry model: [Beech 400A](https://openairdocs.org/model/hawker-beechcraft-400a) (OpenAirDocs)
- Aircraft serial: RK535
- Aircraft time: 1,616 hours, 1,207 cycles
- System (JASC): [3246 · Wheel/Ski/Float](https://openairdocs.org/jasc/3246)
- Part: Wheel Half
- Part number: 95365999
- Condition: Corroded
- Location: Nlg
- 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/E81RJT227916A

## Discrepancy

(E81R)  DURING DISASSEMBLY OF NOSEWHEEL FOR TIRE REPLACEMENT NOTED CORROSION PITTING IN BOLT HOLES.  PITTING WAS DEEPER THAN FIELD REPAIRABLE SERVICE LIMITS.  THIS IS THE SECOND NOSEWHEEL ASSY FROM A RELATIVELY NEW ACFT REJECTED IN LAST 30 DAYS DUE TO EXCESSIVE BOLT HOLE CORROSION PITTING. RECOMMEND AIRFRAME AND WHEEL ASSY MFG INVESTIGATE WHETHER A WHEEL PRODUCTION PROCESS CHANGE MAY BE CAUSING PREMATURE CORROSION OR IF THE COMPONENT MM PROCEDURES MAY NEED A REVISION TO ADDRESS BOLT HOLE CORROSION PREVENTION.

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