Casualties unknown

Pilot Reports Dual Engine Power Loss Due to Induction System Icing, Executes Emergency Landing (N128Y)

Rock Springs, WY, US

On January 8, 2000, a Piper PA-23-250 (registration N128Y) was involved in an aviation accident near Rock Springs, WY. Investigators recorded the probable cause as: A forced landing on rough, unsuitable terrain. Factors were: Inadequate preflight planning, flight into known adverse weather conditions containing snow, high gusting winds, low temperatures, and a total loss of power for non mechanical reasons due to… This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

A pilot on a VFR cross-country flight encountered IMC conditions, obtained an IFR clearance, then lost power to both engines due to induction system icing, leading to an emergency gear-up landing on rough terrain.

Incident Summary

A pilot initiated a cross-country flight under a VFR flight plan but encountered IMC conditions immediately after departure. Shortly after takeoff, the pilot obtained an IFR clearance. Approximately 15 minutes into the flight, the pilot reported a loss of power to the right engine, which he attributed to induction system icing. Subsequently, power to the left engine was also lost. Faced with a complete loss of thrust, the pilot conducted an emergency landing with the landing gear retracted on rough, uneven terrain.

Weather Conditions

Weather reported at the departure airport included an overcast ceiling at 200 feet, visibility of 1/2 mile with snow, wind from 280 degrees at 17 knots gusting to 23 knots, an altimeter setting of 29.86 inches of mercury, and a temperature/dew point of 25°F and 19°F, respectively. These conditions were conducive to induction system icing.

Emergency Landing

With both engines inoperative, the pilot performed a forced landing. The landing gear was retracted to minimize damage upon touchdown. The landing site was characterized as rough and uneven terrain. No further details regarding injuries or aircraft damage were provided in the source.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X20347. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.