Incident Overview
The airplane was on its first flight following the installation of an overhauled engine. Approximately five minutes after takeoff, the engine lost power. The pilot executed a wheels-up forced landing on a road. During the landing roll, the airplane's left wing struck a barrel.
Post-Incident Examination
Examination revealed that when the landing gear was retracted, the nose gear torque links had contacted the engine oil quick drain valve, activating the valve. This resulted in the loss of all engine oil and subsequent engine seizure.
Airworthiness Directive Compliance
Airworthiness Directive (AD) 81-11-02 R1, effective October 2, 1981, applied to this airplane. The AD required that if an oil quick drain valve was installed, it must be Piper Part No. 492-172V. However, the installed oil quick drain valve was found to be a Curtis model CCA-1700.
Conclusion
The loss of engine power was due to oil depletion and engine seizure caused by inadvertent activation of an incompatible oil quick drain valve during landing gear retraction.