# SDR DXTA2016041306231

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2016
- Submitted: April 25, 2016
- Operation: Air carrier
- Aircraft: N648QS
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605574
- Aircraft time: 9,608 hours, 7,506 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Torque Tube
- Part number: 66342009
- Part serial: 0000106
- Condition: Corroded
- Location: Lt Elevator
- Part time: 9,603 hours, 7,501 cycles
- 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/DXTA2016041306231

## Discrepancy

LEFT ELEVATOR TORQUE TUBE CORRODED OUT OF LIMITS.  FOUND DURING COMPLETE PAINT PROCESS.  REMOVED TORQUE TUBE, PN UNKNOWN, FROM LT ELEVATOR PN 6634200-9, SN 0000106 DUE TO LEVEL 2 CORROSION.  INSTALLED NEW TORQUE TUBE PN 6634002-15 IAW SRM 51-40-03, 51-40-04, 51-40-05, 51-40-06, 55-20-01 & MM 20-32-00.  THIS IS CONSIDERED A MAJOR REPAIR.  SEE WO YMMHB SQUAWK 2 , 1 FOR ELEVATOR BALANCE.

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