Minsk – Zagreb – Marseille – Oran – Tamanrasset – Bamako

The aircraft was on a ferry flight from Minsk, Belarus, to Bamako, Mali, with intermediate stops in Zagreb, Marseille, Oran and Tamanrasset. It was returning to its country following maintenance in Minsk factory. While cruising by night in poor weather conditions, the crew failed to realize that the airplane deviated from the prescribed flight path. Due to opposite traffic, the crew was instructed to make a 360° right turn but apparently did not understand this message. At an altitude of 10,000 feet, the airplane struck the slope of Mt L'Avalanche located about 1,500 meters west of Estenc, Alpes-Maritimes. The wreckage was found few hours later. The airplane was totally destroyed upon impact and all seven occupants, five crew members and two passengers (two mechanics) were killed. At the time of the accident, the airplane equipment was compliant but due to stormy weather and strong winds, a precise navigation was impossible due to the lack of a VOR receptor. On the route Genoa - Albenga - Nice, the airplane failed to follow the G7 Airway due to stormy weather and in accordance with ATC. The Russian pilot-in-command, speaking neither English nor French, could not converse directly with ground control. The co-pilot, speaking French but not Russian, could not converse directly with the captain or translate his orders from the ground. The navigator, in charge of the route in particular difficult conditions, could not correspond more with the pilot, if not by means of the radio. Only the radio could translate into Russian to the captain the indications provided in French by the ground control, which could ipso facto introduce a source of error of interpretation, and required a certain time of translation. The ICAO recommendation suggesting to the pilot-in-command the use of English or the language used by the ground station was not applied. The investigation established that the crew was unaware of wind and drift. Under the influence of a wind blowing from sector 210 to 100 km/h, the aircraft suffered a drift of about 20° towards the north, thus towards the mountain. Vertical to Nice, the airplane was already 25 kilometers north of the station and north of the G7 Airway. The diversion order did not have to be understood the first time since the crew requested repetition. The superposition of the orders of two simultaneous maneuvers, turn and descent, probably made the interpretation tricky and ambiguous. The order to make a 360° right turn, which means a circular turn, was erroneously understood as the order to take heading 360. Indeed, at least five kilometers prior to impact, the aircraft was following a straight path, in this case a heading oriented almost to magnetic north. Under the influence of one or more stormy areas northwest of Nice, the unstable indications of the radiocompas did not allow position's control and turbulences could create an additional difficulty. The aircraft approached the terrain as fast as it did to the north and the speed of the aircraft at that heading increased by about 100 km/h, representing the wind speed south-southeast. The point of impact was 2,440 meters, the level 80 towards which the aircraft was normally descending corresponding to an altitude of 2'380 meters.

Flight / Schedule

Minsk – Zagreb – Marseille – Oran – Tamanrasset – Bamako

Aircraft

Ilyushin II-14

Registration

TZ-ABH

MSN

7 34 25 01

Year of Manufacture

1957

Operator

Air Mali

Date

November 5, 1966 at 08:02 PM

Type

CRASH

Flight Type

Ferry

Flight Phase

Flight

Crash Site

Mountains

Crash Location

Estenc Alpes-Maritimes

Region

Europe • France

Coordinates

44.2337°, 6.7542°

Crash Cause

Human factor

Narrative Report

On November 5, 1966 at 08:02 PM, Minsk – Zagreb – Marseille – Oran – Tamanrasset – Bamako experienced a crash involving Ilyushin II-14, operated by Air Mali, with the event recorded near Estenc Alpes-Maritimes.

The flight was categorized as ferry and the reported phase was flight at a mountains crash site.

7 people were known to be on board, 7 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 5, crew fatalities: 5, passengers on board: 2, passenger fatalities: 2, other fatalities: 0.

The listed crash cause is human factor. The aircraft was on a ferry flight from Minsk, Belarus, to Bamako, Mali, with intermediate stops in Zagreb, Marseille, Oran and Tamanrasset. It was returning to its country following maintenance in Minsk factory. While cruising by night in poor weather conditions, the crew failed to realize that the airplane deviated from the prescribed flight path. Due to opposite traffic, the crew was instructed to make a 360° right turn but apparently did not understand this message. At an altitude of 10,000 feet, the airplane struck the slope of Mt L'Avalanche located about 1,500 meters west of Estenc, Alpes-Maritimes. The wreckage was found few hours later. The airplane was totally destroyed upon impact and all seven occupants, five crew members and two passengers (two mechanics) were killed. At the time of the accident, the airplane equipment was compliant but due to stormy weather and strong winds, a precise navigation was impossible due to the lack of a VOR receptor. On the route Genoa - Albenga - Nice, the airplane failed to follow the G7 Airway due to stormy weather and in accordance with ATC. The Russian pilot-in-command, speaking neither English nor French, could not converse directly with ground control. The co-pilot, speaking French but not Russian, could not converse directly with the captain or translate his orders from the ground. The navigator, in charge of the route in particular difficult conditions, could not correspond more with the pilot, if not by means of the radio. Only the radio could translate into Russian to the captain the indications provided in French by the ground control, which could ipso facto introduce a source of error of interpretation, and required a certain time of translation. The ICAO recommendation suggesting to the pilot-in-command the use of English or the language used by the ground station was not applied. The investigation established that the crew was unaware of wind and drift. Under the influence of a wind blowing from sector 210 to 100 km/h, the aircraft suffered a drift of about 20° towards the north, thus towards the mountain. Vertical to Nice, the airplane was already 25 kilometers north of the station and north of the G7 Airway. The diversion order did not have to be understood the first time since the crew requested repetition. The superposition of the orders of two simultaneous maneuvers, turn and descent, probably made the interpretation tricky and ambiguous. The order to make a 360° right turn, which means a circular turn, was erroneously understood as the order to take heading 360. Indeed, at least five kilometers prior to impact, the aircraft was following a straight path, in this case a heading oriented almost to magnetic north. Under the influence of one or more stormy areas northwest of Nice, the unstable indications of the radiocompas did not allow position's control and turbulences could create an additional difficulty. The aircraft approached the terrain as fast as it did to the north and the speed of the aircraft at that heading increased by about 100 km/h, representing the wind speed south-southeast. The point of impact was 2,440 meters, the level 80 towards which the aircraft was normally descending corresponding to an altitude of 2'380 meters.

Aircraft reference details include registration TZ-ABH, MSN 7 34 25 01, year of manufacture 1957.

Geospatial coordinates for this crash are approximately 44.2337°, 6.7542°.

Fatalities

Total

7

Crew

5

Passengers

2

Other

0

Crash Summary

The aircraft was on a ferry flight from Minsk, Belarus, to Bamako, Mali, with intermediate stops in Zagreb, Marseille, Oran and Tamanrasset. It was returning to its country following maintenance in Minsk factory. While cruising by night in poor weather conditions, the crew failed to realize that the airplane deviated from the prescribed flight path. Due to opposite traffic, the crew was instructed to make a 360° right turn but apparently did not understand this message. At an altitude of 10,000 feet, the airplane struck the slope of Mt L'Avalanche located about 1,500 meters west of Estenc, Alpes-Maritimes. The wreckage was found few hours later. The airplane was totally destroyed upon impact and all seven occupants, five crew members and two passengers (two mechanics) were killed. At the time of the accident, the airplane equipment was compliant but due to stormy weather and strong winds, a precise navigation was impossible due to the lack of a VOR receptor. On the route Genoa - Albenga - Nice, the airplane failed to follow the G7 Airway due to stormy weather and in accordance with ATC. The Russian pilot-in-command, speaking neither English nor French, could not converse directly with ground control. The co-pilot, speaking French but not Russian, could not converse directly with the captain or translate his orders from the ground. The navigator, in charge of the route in particular difficult conditions, could not correspond more with the pilot, if not by means of the radio. Only the radio could translate into Russian to the captain the indications provided in French by the ground control, which could ipso facto introduce a source of error of interpretation, and required a certain time of translation. The ICAO recommendation suggesting to the pilot-in-command the use of English or the language used by the ground station was not applied. The investigation established that the crew was unaware of wind and drift. Under the influence of a wind blowing from sector 210 to 100 km/h, the aircraft suffered a drift of about 20° towards the north, thus towards the mountain. Vertical to Nice, the airplane was already 25 kilometers north of the station and north of the G7 Airway. The diversion order did not have to be understood the first time since the crew requested repetition. The superposition of the orders of two simultaneous maneuvers, turn and descent, probably made the interpretation tricky and ambiguous. The order to make a 360° right turn, which means a circular turn, was erroneously understood as the order to take heading 360. Indeed, at least five kilometers prior to impact, the aircraft was following a straight path, in this case a heading oriented almost to magnetic north. Under the influence of one or more stormy areas northwest of Nice, the unstable indications of the radiocompas did not allow position's control and turbulences could create an additional difficulty. The aircraft approached the terrain as fast as it did to the north and the speed of the aircraft at that heading increased by about 100 km/h, representing the wind speed south-southeast. The point of impact was 2,440 meters, the level 80 towards which the aircraft was normally descending corresponding to an altitude of 2'380 meters.

Cause: Human factor

Occupants & Outcome

Crew On Board

5

Passengers On Board

2

Estimated Survivors

0

Fatality Rate

100.0%

Known people on board: 7

Operational Details

Schedule / Flight

Minsk – Zagreb – Marseille – Oran – Tamanrasset – Bamako

Operator

Air Mali

Flight Type

Ferry

Flight Phase

Flight

Crash Site

Mountains

Region / Country

Europe • France

Aircraft Details

Aircraft

Ilyushin II-14

Registration

TZ-ABH

MSN

7 34 25 01

Year of Manufacture

1957