C177R pilot reported flying the aircraft with a loose propeller blade that he was not aware of.

Attributes
ACN	1293486
Time
Date	201508
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	Cardinal 177/177RG
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Propeller Blade
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 25 Flight Crew Total 825 Flight Crew Type 600
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural FAR

Narrative:

During takeoff roll the prior evening; it appeared that the propeller was not developing full RPM. I aborted departure and tied down the aircraft; with the intent of having the aircraft inspected the next day. There were no mechanics available; but I called my regular a&P and while running up the engine the problem appeared to have been resolved. He thought maybe the cable was temporarily stuck; but since the propeller was now working he did not think it was unsafe to fly. I inspected the prop and did not see anything wrong; and I flew the aircraft without incident. When I landed two hours later; I discovered one of the prop blades was loose; and the propeller has been removed and sent out for inspection. Arguably the aircraft was unairworthy and should not have been flown.

Original NASA ASRS Text

Title: C177R pilot reported flying the aircraft with a loose propeller blade that he was not aware of.

Narrative: During takeoff roll the prior evening; it appeared that the propeller was not developing full RPM. I aborted departure and tied down the aircraft; with the intent of having the aircraft inspected the next day. There were no mechanics available; but I called my regular A&P and while running up the engine the problem appeared to have been resolved. He thought maybe the cable was temporarily stuck; but since the propeller was now working he did not think it was unsafe to fly. I inspected the prop and did not see anything wrong; and I flew the aircraft without incident. When I landed two hours later; I discovered one of the prop blades was loose; and the propeller has been removed and sent out for inspection. Arguably the aircraft was unairworthy and should not have been flown.

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.