C172 pilot reported a loss of engine power during climbout that resulted in a precautionary landing.

Attributes
ACN	1707139
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	Initial Climb
Route In Use	Direct
Flight Plan	VFR
Component
Aircraft Component	Reciprocating Engine Assembly
Person 1
Function	Instructor Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 80 Flight Crew Total 700 Flight Crew Type 400
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Upon initial climbout; the motor began to shudder violently and dropped to 1000 RPM at full throttle. I immediately pitched for vg (best glide speed) advised ATC and turned back to the airport for runway xx. ZZZ tower cleared me to land runway xx and made it the runway safely.

Original NASA ASRS Text

Title: C172 pilot reported a loss of engine power during climbout that resulted in a precautionary landing.

Narrative: Upon initial climbout; the motor began to shudder violently and dropped to 1000 RPM at full throttle. I immediately pitched for VG (Best Glide Speed) advised ATC and turned back to the airport for Runway XX. ZZZ Tower cleared me to land Runway XX and made it the runway safely.

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.