The pilot reported that he had flown a group of skydivers to altitude for an intentional
parachute jump about 3 miles north of the airport and was returning for landing at the time of
the accident. The airplane was on final approach when the engine lost power. The pilot’s
attempts to restore engine power were unsuccessful, and he ditched the airplane into a lake
short of the runway. The pilot reported using carburetor heat during the descent; however, the
pilot did not periodically apply engine power (clear the engine) during the descent. According
to FAA Advisory Circular 20-113, Pilot Precautions and Procedures to be Taken in Preventing
Aircraft Reciprocating Engine Induction System and Fuel System Icing Problems, "Heat
should be applied for a short time to warm the induction system before beginning a prolonged
descent with the engine throttled and left on during the descent. Power lever advancement
should be performed periodically during descent to assure that power recovery can be
achieved." A postaccident engine examination did not reveal any anomalies consistent
with a preimpact failure or malfunction. Local weather conditions were conducive to the
formation of carburetor icing.
C-182 Non-Fatal Boulder, CO September 1, 2013
The pilot reported that he had flown a group of skydivers to altitude for an intentional
parachute jump about 3 miles north of the airport and was returning for landing at the time of
the accident. The airplane was on final approach when the engine lost power. The pilot’s
attempts to restore engine power were unsuccessful, and he ditched the airplane into a lake
short of the runway. The pilot reported using carburetor heat during the descent; however, the
pilot did not periodically apply engine power (clear the engine) during the descent. According
to FAA Advisory Circular 20-113, Pilot Precautions and Procedures to be Taken in Preventing
Aircraft Reciprocating Engine Induction System and Fuel System Icing Problems, "Heat
should be applied for a short time to warm the induction system before beginning a prolonged
descent with the engine throttled and left on during the descent. Power lever advancement
should be performed periodically during descent to assure that power recovery can be
achieved." A postaccident engine examination did not reveal any anomalies consistent
with a preimpact failure or malfunction. Local weather conditions were conducive to the
formation of carburetor icing.