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ASN Wikibase Occurrence # 23842
Last updated: 18 October 2017
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Date:04-JAN-2003
Time:16:40
Type:Silhouette image of generic COY2 model; specific model in this crash may look slightly different
Rans S-6 Coyote
Owner/operator:Private
Registration: 38-FR
C/n / msn:
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Airplane damage: Substantial
Location:Revel, shores of Lake Grand Doménon, massif de Belledone, at 7825 feet -   France
Phase: En route
Nature:Private
Departure airport:Aéroport Alpes–Isère, Grenoble,Saint-Étienne-de-Saint-Geoirs (LDLS)
Destination airport:
Narrative:
According to a rough translation from French into English of the official BEA accident report:

"The pilot, familiar of the region, explains that it takes off from the aerodrome of Grenoble the Versoud. Around 4 pm. It climbs rapidly towards the station of Chamrousse where a Thinning allows him to see the blue sky. All the rest of the valley is covered with clouds of which The base is at a height of about 3000 feet. It flies over the Cross of Chamrousse

Then, the thinning disappearing and a strong approaching grain, he decides to go back. It begins Rapid descent thinking to be able to pass under the cloud layer by a hole Which he sees the ground. A few moments later, the gap narrows and he finds himself Conditions in severe turbulence. Its speed undergoes great variations.

Not read the compass indications. At 1625 hours, he contacted the tower controller Of Grenoble the Versoud. He announces that he is in perdition and asks to be located. The Controller replied that he did not have a goniometer to locate him. The Pilot, see for a moment a very close rock face and triggers the opening of the Emergency parachute of the aircraft. The descent of the ULM under the parachute is brief.

The Contact with the snowy ground is mild. The parachute inflated by the strong wind, drags the aircraft Ascending it along the slope towards a rocky spur. The pilot takes advantage of a lull To exit the passenger compartment and attempt to deflate the parachute. Not succeeding, he cut Several lines with a knife.

He uses the sail of the parachute to protect himself from the cold inside the aircraft. After having The electrical contact, it hears weakly on the radio the messages between the Control of Grenoble Versoud and the pilot of a plane in flight trying to locate it. he Tries to contact them, in vain. He checks his position using his GPS and spends the night
On the site of the accident. It issues a distress message every time an aircraft is flown commercial.

The next morning, he launched new unsuccessful radio calls. He leaves The ULM at 10 o'clock, wrapped up in the parachute canvas. He managed to reach the Around 11.45 am after a difficult walk in the thick snow, under violent conditions Gusts of wind and with poor visibility. Weather conditions

He left the hut at about 12.30 and decided to go down into the valley. Towards At 1445, he hears and sees a helicopter intermittently. He manages to contact him On the frequency of distress 121.50 Mhz after trying 130.00 Mhz (frequency
Allocated to the flight in mountain) and 121.00 Mhz (frequency of Grenoble Versoud). To the Helicopter pilot, he climbs to an area accessible to the helicopter. he Is evacuated around 16:00, very exhausted and hypothermic.

The meteorological information issued by the ATIS of the Grenoble aerodrome Versoud on January 4 at 4:00 pm were the following: wind 230 ° / 14 knots, visibility More than 10 kilometers, fragmented clouds at 3500 feet, temperature 11 ° C, Dew point temperature 3 ° C, QNH 1004 hPa, QFE 978 hPa.

The meteorological service envisaged the arrival of an active cold front in the afternoon with Presence of Cumulo nimbus and storms. The pilot was not aware of these pre-flight forecasts. During the night and the day following the event, the helicopters participating in the Attempted to locate the ULM at an altitude of about 3000 feet, base of the layer cloudy

Event: emergency landing in the mountains with Use of emergency parachute by conditions Adverse weather conditions.

Identified cause: choice of mountain route unsuitable for weather situation.

Sources:

1. http://www.bea-fr.org/docspa/2003/38-r030104/htm/38-r030104.html
2. http://www.bea-fr.org/docspa/2003/38-r030104/pdf/38-r030104.pdf


Revision history:

Date/timeContributorUpdates
27-Sep-2008 01:00 ASN archive Added
14-Jul-2017 19:27 Dr. John Smith Updated [Operator, Location, Phase, Nature, Departure airport, Source, Narrative]

Corrections or additions? ... Edit this accident description