# SDR 95ZZZX4004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N736LC
- Make and model: Cessna R172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (OpenAirDocs)
- Aircraft serial: R1722603
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Torque Tube
- Part number: 053200135
- Condition: Adapter Loose
- Location: Lt Elev
- Part time: 1,528 hours
- Component: 053200173
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX4004

## Discrepancy

DURING ANNUAL INSPECTION, TORQUE TUBE ADAPTER ON THE LEFT ELEVATOR DISCOVERED LOOSE AND WORKING.  A BALANCE CHECK OF THE ELEVATORS REVEALED THEM TO BE CLOSE TO THEIR LIMITS, BUT STILL SERVICEABLE.  LEFT ELEVATOR WAS UNDER BALANCED AT 17.5 INCHES/POUNDS.  ITS LIMITS ARE 0.0 TO 18.5 INCH/POUNDS.  THE RIGHT ELEVATOR WAS UNDER BALANCED AT 24 INCHES/POUNDS.  ITS LIMITS ARE 0.0 TO 24.5 INCH/POUNDS.  RECOMMEND TIGHTER LIMITS ON CONTROL SURFACE AND MORE FREQUENT CHECKS OF CONTROL SURFACE BALANCE.

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