What aircraft was involved and where did it happen?

The accident on 1991-02-18 involved a Beech 95, registration N2772Y, operated by Ross E. Rogers, at Roundup, MT.

Partial Power Loss in Both Engines Leads to Forced Landing and Collision with Ditch (N2772Y)

On February 18, 1991, a Beech 95 (registration N2772Y) operated by Ross E. Rogers was involved in an aviation accident near Roundup, MT. Investigators recorded the probable cause as: PARTIAL LOSS OF POWER FOR UNDETERMINED REASONS. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

During cruise in IMC, the right engine lost partial power; while assessing, the left engine also lost partial power. The pilot did not follow single-engine or engine ice protection procedures. The airplane could not maintain altitude, leading to a forced landing. During the landing roll in an open field, it collided with a ditch.

Incident Overview

While operating at cruise flight in instrument meteorological conditions (IMC), the right engine experienced a partial loss of power. The pilot stated that while he was assessing the issue with the right engine, the left engine also lost partial power.

Pilot Actions

The pilot did not follow the manufacturer's single-engine procedures or the engine ice protection procedures.

Forced Landing

Unable to maintain altitude, the pilot initiated a forced landing. During the landing roll in an open field, the airplane collided with a ditch.

Weather Information

Weather forecasts had cautioned of moderate rime icing in the precipitation.

Post-Incident Examination

Both engines were subsequently test run and found to operate within normal parameters.

1991-02-18: Beech 95 (N2772Y) — Ross E. Rogers — Roundup, MT