Occurrence
On 10 February 2015 at 14:10 local time, a Maule M-4-210C, registration HB-ETR, and a Cessna 150D, registration HB-CMS, were involved in a collision during taxiing at Hüfifirn/GL, Switzerland. The Maule was privately owned and operated by a Swiss private pilot (born 1945) holding a PPL(A) license. The pilot had accumulated 5,100 total flight hours, with 7 hours in the preceding 90 days; 3,000 hours on the Maule type, including 7 hours in the last 90 days.
Sequence of Events
After two landings with go-arounds, the pilot of HB-ETR intended to park alongside the stationary Cessna HB-CMS. The approach and landing were uneventful. The pilot then initiated a left turn. While coming to a stop approximately 20 meters to the left of the parked Cessna, the Maule suddenly began to slide. It turned uncontrollably toward the Cessna, and its propeller cut through the left wing of the parked aircraft.
Damage
The Maule sustained damage to its propeller, engine, and windshield. The Cessna's left wing was cut by the propeller. No other third-party damage was reported.
Injuries
The Cessna's pilot, the sole occupant, sustained minor or no injuries. No other persons were injured.
Investigation
The Swiss Transportation Safety Investigation Board (SUST) conducted a summary investigation under Articles 45 and 46 of the Ordinance on the Safety Investigation of Transport Incidents (VSZV). The report was prepared to learn from the incident.