Boeing A75N1(PT17) N50052 accident near Junction City, Kansas

Probable cause

The degraded engine performance due to low compression on the cylinder and delayed ignition timing.

NTSB analysis

According to the pilot, during the initial climb after takeoff, the engine started losing power. The pilot believed the airplane was too far down the runway to abort the takeoff, so he continued the climb. Shortly after, the airplane impacted a tree and a house resulting in substantial damage to both wings. A postaccident examination of the engine revealed that the No. 6 cylinder had measured compression of 34/80 and that the ignition timing on the forward and aft bank of spark plugs was delayed resulting in a degradation of engine power. The airplane was loaded to within 150 pounds of the airplane's gross weight, and calculations of relevant meteorological data revealed that the density altitude was 3,350 feet.

Text from the NTSB. Open the NTSB docket for CEN11LA375 for the full record.