Cessna 172N accident near Colorado Spgs, CO

On September 1, 1995, a Cessna 172N (airplane) was involved in an accident near Colorado Spgs, CO. 2 people were seriously injured. Damage to the aircraft: destroyed.

Date
September 1, 1995
Place
Colorado Spgs, CO
Aircraft
Cessna 172N · Airplane
Injuries
0 fatal, 2 serious, 0 minor
Damage
Destroyed
Position
38.810°N, 104.711°W
NTSB ID
20001207X04488

NTSB summary

On September 1, 1995, at 0737 mountain daylight time, a Cessna 172N, N4814F, was destroyed when it collided with terrain after taking off from Colorado Springs, Colorado. The commercial pilot and passenger were seriously injured. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight being conducted under Title 14 CFR Part 91. The flight was originating when the accident occurred. In the Pilot/Operator Report, the pilot could not recall any of the accident details other than having initiated a left turn "back towards the runway." The pilot's father recalled that there had been a power loss, "as if the power had been brought back to idle." Control tower personnel observed the airplane take off on runway 35L, but it did not appear to be climbing. They asked the pilot if he was having difficulty or if he wanted to land. The pilot said he did not need any help. The left wing was then seen to drop and the airplane collided with terrain. The on-scene examination by a Federal Aviation Administration operations inspector disclosed the mixture control was in the "FULL RICH" position. A piece of baffle seal material, measuring approximately 4 inches by 3/8 inch was found lodged upstream from the venturi in the air intake side of the carburetor throat, between the accelerator pump discharge tube and the power jet. A similar piece of material was found missing from the carburetor heat air box. The elevation at Colorado Springs Municipal Airport is 6,172 feet above mean sea level (MSL). The undisturbed carburetor and carburetor heat air box were

Probable cause

BLOCKAGE OF THE CARBURETOR BY A PIECE OF FOREIGN MATERIAL, WHICH RESULTED IN A LOSS OF ENGINE POWER, AND FAILURE OF THE PILOT TO MAINTAIN AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL. THE HIGH DENSITY ALTITUDE AND THE PILOT'S FAILURE TO PROPERLY LEAN THE FUEL MIXTURE WERE POSSIBLE FACTORS.

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