# SDR CA051206007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2005
- Submitted: June 6, 2006
- Operation: General aviation
- Make and model: Robsin R44
- Aircraft time: 3,148 hours
- Engine: Lyc O540F1B5
- System (JASC): [8011 · Engine Starter](https://openairdocs.org/jasc/8011)
- Part: Actuator
- Part number: 3151031
- Condition: Wrong Part
- Location: Starter
- Component: Starter, BC3151002
- Stage of operation: IN
- How discovered: 9
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA051206007

## Discrepancy

STARTER WAS REMOVED SLOW TO CRANK.  OVERHAUL SHOP FOUND MOTOR BEARINGS FAILED/SEIZED.  LINEAR ACTUATOR REMOVED WAS AN AFTER-MARKET AUTOMOTIVE PART, MADE BY UNIPOINT OF TAIWAN.  THIS ACTUATOR  (SOLENOID) DIFFERS FROM THE OEM PART: (1) ALIGNMENT OF MOUNTING HOLES TO ELECTRICAL TERMINALS IS ROTATED 90º; AND (2) THE TWO MAIN CONTACTOR TERMINALS ARE REVERSED.  THIS COULD CAUSE CONFUSION WHEN CONNECTING POWER LEADS.

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