# SDR 3SVA20190425001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2019
- Submitted: April 25, 2019
- Operation: Air carrier
- Make and model: Cessna 441
- Registry model: [Cessna 441](https://openairdocs.org/model/cessna-441) (OpenAirDocs)
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Push-Pull Rod
- Part number: 5815144204
- Condition: Corroded
- Location: Elevators
- Part time: 15,814 hours, 11,542 cycles
- Stage of operation: NR
- How discovered: X
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/3SVA20190425001

## Discrepancy

DUE TO AGING AIRCRAFT CONCERNS THIS OPERATOR HAS EMBARKED ON A FLEET CAMPAIGN TO REMOVE THE ELEVATOR PUSH PULL TUBES FROM THE C441 AIRCRAFT AND SEND THEM OUT FOR AN XRAY INSPECTION.  WE HAVE PERFORMED INSPECTIONS ON FOUR TUBES P/N 5815144-204 (ORIGINAL P/N 5815144-17) ONE OF THE FOUR HAVE EXHIBITED CORROSION ON THE INTERNAL SURFACES OF THE TUBE.  THESE TUBES ARE CONSTRUCTED WITH ALUMINUM END FITTINGS SECURED INTO A STEEL TUBE; THERE ARE CURRENTLY NO RECOMMENDED INSPECTIONS OF THESE TUBES OTHER THAN EXTERNAL VISUAL.  WITH THE C441 FLEET AGE APPROACHING 40 YEARS IT WOULD BE PRUDENT TO RECOMMEND X-RAY INSPECTION OF THE TUBES FOR INTERNAL CORROSION.

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