# SDR COMA9610407

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N269CA
- Make and model: Emb EMB-120RT
- Registry model: [EMB EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (OpenAirDocs)
- Aircraft serial: 120263
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Pcu
- Part number: 78249012
- Condition: Malfunction
- Location: Rt Engine
- Part time: 11,663 hours
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COMA9610407

## Discrepancy

AFTER TAKEOFF, THE RT PROPELLER RPM INCREASED TO 102 PERCENT.  WHEN POWER REDUCED, THE RPM DROPPED TO 96 PERCENT AND THEN INCREASED AGAIN TO 102 PERCENT.  REPLACED THE RT PROPELLER CONTROL UNIT.  PART TOTAL CYCLES, 11,585.

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