Weather Briefing
The pilot obtained a weather briefing and filed an instrument flight rules (IFR) flight plan before departure. According to reports, the flight service station (FSS) specialist who conducted the briefing did not inform the pilot of a pertinent forecast predicting moderate icing in clouds and precipitation up to 18,000 feet. The forecast was available to the specialist at the time of the briefing.
In-Flight Encounter
During climb-out, the pilot reported encountering extreme icing conditions. As a result, the pilot decided to divert to Farmington, New Mexico. The pilot then executed a VOR/DME approach to the airport. The approach was flown high, and the pilot informed the tower that he would circle and land.
Landing and Outcome
During the landing, the right wing dropped just before touchdown. The right wing struck the approach end of the runway. The landing gear collapsed during touchdown, and the aircraft slid off the left side of the runway. Reports indicated that the aircraft and its windshield were covered with ice at the time.