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C172 pilot flying reported experiencing loss of engine power during takeoff roll.
| Attributes | |
| ACN | 1689905 |
| Time | |
| Date | 201910 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Fuel System |
| Person 1 | |
| Function | Pilot Flying |
| Qualification | Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 10 Flight Crew Total 265 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
I was conducting a flight from ZZZ. The run-up before takeoff was done following the checklist without any issue. During the takeoff roll; I did the line-up check; advance throttle to full power and verify all engine gauges are in green. Just as the aircraft was reaching rotating speed; the RPM dropped from 2;500 to approximately 1;900. The engine was running rough and seemed to quit. I immediately cut the power back to idle and aborted the takeoff. After vacating the runway; I notified ATC that I would like to return to perform another run-up to try to duplicate the problem before returning to the FBO ramp; ATC granted me the request. During the second run-up; I applied full power to simulate the takeoff. After about five seconds in takeoff power; everything happened again. RPM dropped and unstable; and seemed to get worse as I left the throttle in full power. I then notified ATC and requested return to the FBO; where I shut down and secured the aircraft.the aircraft [had] recently been through the 100 hour inspection and had only about 2 hour tach before the event occurred. I later learned that during the inspection; the new fuel tank was replaced. So we suspect that the probable cause of the event was debris from installing a new fuel tank partially blocking the fuel systems; which caused fuel starvation at a high power setting.
Original NASA ASRS Text
Title: C172 pilot flying reported experiencing loss of engine power during takeoff roll.
Narrative: I was conducting a flight from ZZZ. The run-up before takeoff was done following the checklist without any issue. During the takeoff roll; I did the line-up check; advance throttle to full power and verify all engine gauges are in green. Just as the aircraft was reaching rotating speed; the RPM dropped from 2;500 to approximately 1;900. The engine was running rough and seemed to quit. I immediately cut the power back to idle and aborted the takeoff. After vacating the runway; I notified ATC that I would like to return to perform another run-up to try to duplicate the problem before returning to the FBO ramp; ATC granted me the request. During the second run-up; I applied full power to simulate the takeoff. After about five seconds in takeoff power; everything happened again. RPM dropped and unstable; and seemed to get worse as I left the throttle in full power. I then notified ATC and requested return to the FBO; where I shut down and secured the aircraft.The aircraft [had] recently been through the 100 hour inspection and had only about 2 hour Tach before the event occurred. I later learned that during the inspection; the new fuel tank was replaced. So we suspect that the probable cause of the event was debris from installing a new fuel tank partially blocking the fuel systems; which caused fuel starvation at a high power setting.
Data retrieved from NASA's ASRS site 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.