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When the torque on the left engine dropped to zero during a hover check; the helicopter pilot landed immediately and grounded the aircraft until maintenance was available.
| Attributes | |
| ACN | 903312 |
| Time | |
| Date | 201008 |
| Local Time Of Day | 1201-1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Taxi |
| Flight Plan | None |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Commercial |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
During a hover power check prior to departure; the number 2 engine torque went to zero and the number one engine torque was climbing through 80% with no caution or warning indications. Collective was reduced and aircraft landed back on pad without incident. The base mechanic was notified. Mechanic called back and advised me to try to start the aircraft again and to monitor the 'maintenance page' on the vemd [vehicle engine monitoring display] to look for anomalies. He advised since there were no caution or warning lights it may well just be a 'hiccup' in the system and everything may be fine. I did not feel comfortable with this action and called the chief pilot and safety pilot. They concurred and advised me not to attempt to restart the aircraft and to stand down until maintenance action(s) are performed. The event was written up in the 135 logbook as soon as I landed the aircraft.
Original NASA ASRS Text
Title: When the torque on the left engine dropped to zero during a hover check; the helicopter pilot landed immediately and grounded the aircraft until maintenance was available.
Narrative: During a hover power check prior to departure; the number 2 engine torque went to zero and the number one engine torque was climbing through 80% with no caution or warning indications. Collective was reduced and aircraft landed back on pad without incident. The base mechanic was notified. Mechanic called back and advised me to try to start the aircraft again and to monitor the 'maintenance page' on the VEMD [Vehicle Engine Monitoring Display] to look for anomalies. He advised since there were no caution or warning lights it may well just be a 'hiccup' in the system and everything may be fine. I did not feel comfortable with this action and called the Chief Pilot and Safety Pilot. They concurred and advised me not to attempt to restart the aircraft and to stand down until maintenance action(s) are performed. The event was written up in the 135 logbook as soon as I landed the aircraft.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.