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ASN Wikibase Occurrence # 216617
Last updated: 12 May 2021
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Date:24-OCT-2018
Time:12:58 LT
Type:Silhouette image of generic UH1 model; specific model in this crash may look slightly different
Dornier/Bell UH-1D
Owner/operator:Helicopteros del Pacifico
Registration: CC-CPU
MSN: 8115
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Limache, provincia de Marga Marga, Región de Valparaíso -   Chile
Phase: En route
Nature:External load operation
Departure airport:
Destination airport:
Investigating agency: DGAC Chile
Narrative:
A helicopter crashed in a ravine near Limache, Chile. Both occupants were seriously injured.
The helicopter was reportedly engaged in installing high voltage electric towers.

CAUSE
Fracture of the overspeed governor shaft, whose indications in the instruments, made the pilot assume a drop in the main rotor's revolutions, which when performing a descent maneuver to recover the RPM, hit the ground.
CONTRIBUTING FACTORS
- Over speed governor bearing lock, fracturing the shaft.
- Loss of RPM indicator information.
- Low height from the ground, at the time of the emergency.

Sources:

https://www.biobiochile.cl/noticias/nacional/region-de-valparaiso/2018/10/24/helicoptero-cae-en-cercanias-del-embalse-lliulliu-en-limache-equipos-de-emergencia-al-lugar.shtml
https://www.latercera.com/nacional/noticia/limache-helicoptero-capoto-embalse-lliu-lliu/374092/
https://www.dgac.gob.cl/wp-content/uploads/2020/08/1877.pdf

Accident investigation:
cover
  
Investigating agency: DGAC Chile
Status: Investigation completed
Duration: 1 year and 10 months
Download report: Final report

Media:


Images:


Revision history:

Date/timeContributorUpdates
24-Oct-2018 18:28 ELTOTICO Added
24-Oct-2018 18:37 harro Updated [Total fatalities, Other fatalities, Damage, Narrative, Plane category]
24-Oct-2018 18:39 harro Updated [Aircraft type]
24-Oct-2018 21:19 Aerossurance Updated [Time, Location, Nature, Narrative]
25-Oct-2018 03:57 Iceman 29 Updated [Source, Embed code]
23-Nov-2018 07:27 ELTOTICO Updated [Registration, Source, Embed code]
27-Mar-2020 13:12 Honcho64 Updated [Aircraft type, Cn]
27-Mar-2020 13:13 harro Updated [Source]
01-Sep-2020 16:47 KagurazakaHanayo Updated [Source, Narrative]
01-Sep-2020 16:49 harro Updated [Nature, Narrative, Accident report, ]

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