What happened
During a cross-country ferry flight, the pilot experienced a sudden decrease in engine oil pressure. Simultaneously, oil began spattering across the airplane's windshield, obscuring visibility. Due to the deteriorating engine conditions, the pilot selected a remote frozen lake as a forced landing site.
As the aircraft performed the landing roll on the lake, the right wing made contact with a tree. This impact resulted in damage to the wing and fuselage.
Because of the remote location, the pilot was unable to immediately depart the area but managed to replace the engine oil. Following this maintenance, the pilot was able to depart the lake and fly the aircraft to the next available airstrip, where it was secured. The NTSB was notified of the damage 12 days after the event.