# SDR 98ZZZX862

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N6645K](https://openairdocs.org/aircraft/N6645K), registered now
- Make and model: Beech C-99
- Registry model: [Beech C-99](https://openairdocs.org/model/beech-c-99) (OpenAirDocs)
- Aircraft serial: U209
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Torque Tube
- Part number: 1156100153
- Condition: Cracked
- Location: Elevator
- 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/98ZZZX862

## Discrepancy

AS PART OF A CONTINUOUS SURVEILLANCE PROGRAM, OPERATOR VISUALLY INSPECTED THE AREA AROUND THE TAPER PINS EACH 100-HOUR INSP.  BEECH WROTE SB 2145 WHICH PERTAINS TO DISASSEMBLY AND INSPECTION OF THIS COMPONENT EACH 1,000 HOURS.  AFTER THE FIRST 1,000-HOUR INSPECTION, OPERATOR VISUALLY INSPECTED THE SUPPORT EVERY 100 HOURS AND FOUND CRACKS AROUND THE TAPER PIN.  TT:  1,400-1,700 HOURS.  SUBMITTER STATED THIS IS A $1,400 PART WHICH COULD BE MADE STRONGER IN SUCH A HIGH VIBRATION AREA.  SYSTEMATICALLY BALANCING THE PROPELLERS HAS NOT ELIMINATED THIS PROBLEM.

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