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ASN Wikibase Occurrence # 17904
Last updated: 24 August 2021
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Date:17-JUL-1986
Time:10:05
Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Agusta-Bell AB 206
Owner/operator:South Western Electricity Board
Registration: G-JGFF
MSN: 8594
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Trillgate Farm, Bullcross, 3 miles from Stroud, Gloucestershire -   United Kingdom
Phase: En route
Nature:SU
Departure airport:Staverton, Gloucestershire (EGBJ)
Destination airport:Trillgate Farm, Bullcross, near Stroud, Gloucestershire
Investigating agency: AAIB
Narrative:
Written off (damaged beyond repair) 17/7/1986 when overturned on landing after engine failure at Trillgate Farm, Bullcross, 3 miles from Stroud, Gloucestershire, during a power line inspection flight. According to the following extract from the official AAIB report into the accident:

"The pilot and the observer were performing power line inspections along a valley north of Stroud when, at about 60 feet and 50 mph, the engine rapidly lost power.. The pilot turned towards an area clear of trees lower in the valley, and held some collective pitch, in order to clear a line of trees on the approach

Passing over the trees he lowered the collective lever, and passed under the power lines; approaching the ground he flared for landing with the aft cyclic stick, and increased collective pitch, but the decay in rotor speed resulted in minimal cushioning effect, and the aircraft struck the ground very hard tail first

The aircraft bounced, and then. on touching down again, rolled onto its side and slid to a halt in about 15 yards. The pilot heard that the engine was still running, so he closed the throttle and turned off the master switch. Both crew then evacuated from the aircraft through the front door"

Damage sustained to airframe: Per the AAIB report "severe damage to engine main, rotor blades, tail boom, fin, tail rotor, and main skids". As a result, the registration G-JGFF was cancelled by the CAA on 23/11/1989 as "Permanently Withdrawn From Use"

Sources:

1. AAIB: https://assets.digital.cabinet-office.gov.uk/media/5422f20aed915d13740003d1/Agusta_Bell_206B_G-JGFF_08-86.pdf
2. CAA: http://www.caa.co.uk/aircraft-registration/
3. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=14526
4. http://www.aviation-links.co.uk/Gloucestershire%20Aircraft%20Accidents.pdf

Accident investigation:
cover
  
Investigating agency: AAIB
Status: Investigation completed
Duration:
Download report: Final report


Revision history:

Date/timeContributorUpdates
17-May-2008 11:10 ASN archive Added
22-Dec-2012 17:13 Dr. John Smith Updated [Time, Operator, Total fatalities, Total occupants, Other fatalities, Location, Phase, Nature, Departure airport, Source, Damage, Narrative]
29-Nov-2015 23:53 Dr.John Smith Updated [Date, Time, Location, Departure airport, Destination airport, Source, Narrative]
30-Nov-2015 16:47 Dr.John Smith Updated [Location, Destination airport, Narrative]

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