<< >> NASA ASRS Report 844201, July 2009

A C172 pilot landed his aircraft at a nearby airport after takeoff when the engine's RPM did not meet the expected value. After landing; propeller damage was discovered from an unknown source at an unknown time but possibly during takeoff.

Attributes
ACN	844201
Time
Date	200907
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Flight Phase	Taxi Takeoff
Route In Use	Direct
Flight Plan	VFR
Component
Aircraft Component	Propeller Blade
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Commercial
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 850 Flight Crew Type 600
Events
Anomaly	Ground Event / Encounter Object

Narrative:

I departed in moderate rain slightly obscuring visibility. I performed a soft field takeoff; and climbed to 700 where I performed my cruse checklist. At this point I noticed a lower than normal RPM indication. I then diverted to investigate on the ground. After an inspection was performed I found that one blade of the propeller was bent forward. After I found the imperfection in the aircraft I grounded the aircraft; and took another flight home. Looking back at the situation I can only assume I hit something during the takeoff.

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Original NASA ASRS Text

Title: A C172 pilot landed his aircraft at a nearby airport after takeoff when the engine's RPM did not meet the expected value. After landing; propeller damage was discovered from an unknown source at an unknown time but possibly during takeoff.

Narrative: I departed in moderate rain slightly obscuring visibility. I performed a soft field takeoff; and climbed to 700 where I performed my cruse checklist. At this point I noticed a lower than normal RPM indication. I then diverted to investigate on the ground. After an inspection was performed I found that one blade of the propeller was bent forward. After I found the imperfection in the aircraft I grounded the aircraft; and took another flight home. Looking back at the situation I can only assume I hit something during the takeoff.

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.