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C172 pilot reported an engine RPM drop during takeoff resulting in an expedited landing.
| Attributes | |
| ACN | 1712732 |
| Time | |
| Date | 201912 |
| 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 | Engine |
| Person 1 | |
| Function | Pilot Not Flying Trainee |
| Qualification | Flight Crew Private |
| Experience | Flight Crew Last 90 Days 10 Flight Crew Total 80 Flight Crew Type 6 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Successfully pre-flighted aircraft for IFR cross country with instructor out of flight school. No anomalies found in run up. All instruments in green through duration of start-up; taxi; run up. Magnetos within tolerances; idle check within 600-800 RPM. Briefed all applicable checklists; including emergency procedures.took off from runway xxc after cleared for departure [by] tower. [At] approximately 500-700 feet AGL; engine RPM drastically dropped from full throttle to 2200 RPM; and engine ran rough. All instruments still showing in green: fuel flow; egt; fuel level; oil pressure; oil temperature all nominal. No annunciators appeared. Instructor immediately took control of aircraft; and leveled off; requesting priority handling with tower (2 souls on board; full fuel 4 hours remaining). Aircraft was able to maintain altitude; and entered right traffic for xxc. Cleared to land by tower; and landed aircraft successfully with power. Escorted off runway by [airport] services back to ramp; and immediately squawked aircraft to maintenance.
Original NASA ASRS Text
Title: C172 pilot reported an engine RPM drop during takeoff resulting in an expedited landing.
Narrative: Successfully pre-flighted aircraft for IFR Cross Country with instructor out of Flight School. No anomalies found in run up. All instruments in green through duration of start-up; taxi; run up. Magnetos within tolerances; idle check within 600-800 RPM. Briefed all applicable checklists; including emergency procedures.Took off from Runway XXC after cleared for departure [by] Tower. [At] approximately 500-700 feet AGL; engine RPM drastically dropped from full throttle to 2200 RPM; and engine ran rough. All instruments still showing in green: Fuel flow; EGT; fuel level; oil pressure; oil temperature all nominal. No annunciators appeared. Instructor immediately took control of aircraft; and leveled off; requesting priority handling with Tower (2 souls on board; full fuel 4 hours remaining). Aircraft was able to maintain altitude; and entered right traffic for XXC. Cleared to land by Tower; and landed aircraft successfully with power. Escorted off runway by [airport] services back to Ramp; and immediately squawked aircraft to maintenance.
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.