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Engine computer on light transport carrying cargo prevents overtemp and overtorque when thrust levers advanced too rapidly on takeoff.
| Attributes | |
| ACN | 122876 |
| Time | |
| Date | 198909 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cle |
| State Reference | OH |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 3060 flight time type : 700 |
| ASRS Report | 122876 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
On takeoff roll left engine bypassed. Torque dropped 30%. In my opinion all systems worked normally. Power levers were a little stickier than most other light transport a's I have flown, and I advanced the power more quickly than normal. The engine computer sensed a quickly approaching engine temperature limit and bypassed. Note: temperature limit was not more than 630 on the takeoff.
Original NASA ASRS Text
Title: ENGINE COMPUTER ON LTT CARRYING CARGO PREVENTS OVERTEMP AND OVERTORQUE WHEN THRUST LEVERS ADVANCED TOO RAPIDLY ON TKOF.
Narrative: ON TKOF ROLL LEFT ENG BYPASSED. TORQUE DROPPED 30%. IN MY OPINION ALL SYSTEMS WORKED NORMALLY. PWR LEVERS WERE A LITTLE STICKIER THAN MOST OTHER LTT A'S I HAVE FLOWN, AND I ADVANCED THE PWR MORE QUICKLY THAN NORMAL. THE ENG COMPUTER SENSED A QUICKLY APCHING ENG TEMP LIMIT AND BYPASSED. NOTE: TEMP LIMIT WAS NOT MORE THAN 630 ON THE TKOF.
Data retrieved from NASA's ASRS site as of August 2007 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.