ASN Wikibase Occurrence # 44268
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| Date: | Sunday 20 November 2005 |
| Time: | 16:20 LT |
| Type: |  Bell 206L-3 LongRanger III |
| Owner/operator: | Tecniaereas de Colombia |
| Registration: | HK-3516 |
| MSN: | 51311 |
| Year of manufacture: | 1989 |
| Fatalities: | Fatalities: 6 / Occupants: 6 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Cundinamarca -
 Colombia
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Pacho |
| Guaymaral (SKGY) | |
| Investigating agency: | Aerocivil |
| Confidence Rating: |  Accident investigation report completed and information captured |
On November 20, 2005, about 1550 local time, a Colombian registered Bell 206L3 helicopter, HK-3516, operated by Tecniaereas de Colombia LTDA, as an executive transport flight, impacted terrain near Pacho, in Cundinamarca, Colombia. Instrument meteorological conditions prevailed in the area at the time and an instrument flight rules flight plan was filed. The pilot and 5 passengers were fatally injured and the helicopter incurred substantial damage. The flight originated at Caparrapi, Colombia, earlier that day, about 1500.
According to an official with the Colombian DGAC, the helicopter was headed eastbound, attempting to cross the mountains near Pacho, Colombia, en route to Guaymaral, Colombia when the accident occurred. The official further stated that witnesses reported hearing the helicopter, and then heard a loud bang. According to the witnesses, at the time they heard the helicopter impact the terrain, the visibility was reduced to about 20 meters, and there was a light drizzle.
POSSIBLE CAUSES:
Operational decision of the pilot to fly a route that was not the most appropriate according to the prevailing weather conditions, terrain and that was not guided by the regulations established in the ATS route and procedure manual.
Inadequate separation from the ground in deteriorated weather conditions by the pilot.
Impact of some element of the terrain with the tail rotor, during the ascent through the canyon near Pacho, which caused an imbalance of such proportions that the main rotor cut the tail cone in two sections, the upper cockpit and the structure finally failed.
A contributing factor was the deteriorating weather conditions in the northern region of Cundinamarca due to the nearby formation of storm cells that affected visibility and rainfall throughout the area.
Accident investigation:
 |
|
Sources:
http://www.ntsb.gov/ntsb/brief.asp?ev_id=20051206X01943&key=1
http://www.aerocivil.gov.co/autoridad-de-la-aviacion-civil/investigacion/Histricos%20Accidentes/HK-3516.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2008 00:45 | ASN archive | Added |
| 21-Jun-2020 17:53 | KagurazakaHanayo | Updated [Date, Time, Cn, Source, Narrative] |
Corrections or additions? ... Edit this accident description
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