No fatalities

2015-07-06: Quest Kodiak 100 (N642RM) — Viridian — Pskov AFB, Russia

Pskov AFB, RussiaTakeoff (climb)

On July 6, 2015, a Quest Kodiak 100 (registration N642RM) operated by Viridian was involved in an aviation accident near Pskov AFB, Russia during takeoff. No fatalities were reported. Investigators recorded the probable cause as: The accident with Kodiak 100 N642RM aircraft occurred when performing a forced landing to the forest. According to the flight crewmembers explanations, the need of this forced landing was caused by the engine power loss in flight. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781192956Data APIEditorial standards

On 6 July 2015, a Kodiak 100 aircraft (N642RM) made a forced landing in a marshy area near Pskov, Russia, after the flight crew reported engine trouble during climb. The aircraft sustained significant damage; no injuries were reported. Investigation found no mechanical cause for the power loss.

Flight Background

On 3 July 2015 at 15:05, a Kodiak 100 airplane (registration N642RM) landed at Pskov Airport (Russia) after departing from Riga Airport (Latvia). The aircraft was being ferried from the United States to Krutitsy landing site, located approximately 80 kilometers southeast of Ryazan, Russia. Following arrival, the flight crew and passengers completed border and customs formalities. The airplane remained at Pskov Airport under the custody of AASS of Pskovavia (JSC) from 3 July until 6 July 2015.

On 6 July 2015 at 08:00, the flight crew—comprising a pilot-in-command and a first officer—arrived at Pskov Airport to resume the ferry flight. The PIC planned to fly the aircraft from Pskov to Krutitsy that day. In violation of FAP MA CA and FAP-128 requirements, both crew members did not undergo a preflight medical check, despite the availability of medical services at the aerodrome.

Accident Sequence

Prior to takeoff, both pilots were seated in the cockpit: the PIC in the left seat and the first officer in the right seat. Both were secured with safety belts. At 13:15:30, the PIC initiated takeoff from Pskov Airport with a magnetic heading of 190°. According to the flight crew's explanatory reports, during the climb with a left turn, the aircraft experienced engine difficulties. The crew then configured the airplane for gliding and attempted to restart the engine in flight, but these attempts were unsuccessful. Before the emergency landing, the crew shut off the fuel supply and de-energized the aircraft.

The forced landing occurred at 13:18 in a marshy area with bushes and scattered trees. The aircraft sustained significant damage during the landing. No fire occurred either in flight or on the ground. At 13:21:21, the first officer reported the forced landing to an air traffic controller using the aircraft's radio. Pskov First-Aid Station offered assistance, but the flight crew declined, stating they had no injuries.

Investigation Findings

The official investigation determined that the accident occurred during a forced landing to a forest area. The flight crew attributed the need for the forced landing to a loss of engine power in flight. However, examinations of the engine, rotor, and fuel system did not reveal any malfunction that could have caused the power loss. The FDIS SD data card from the central display, which stored all recorded power plant flight parameters, was lost, preventing a full assessment of engine operability and the flight crew's actions.

Probable cause

The accident with Kodiak 100 N642RM aircraft occurred when performing a forced landing to the forest. According to the flight crewmembers explanations, the need of this forced landing was caused by the engine power loss in flight. Conducted examinations of engine, rotor and fuel system did not reveal any issue that can cause the power plant loss of power. Because FDIS SD data card from the central display, which storages all recorded power plant flight parameters was lost, it was not possible to access the engine operability and the flight crewmembers' actions in full.