ASN Wikibase Occurrence # 152391
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| Date: | Wednesday 6 July 1983 |
| Time: | 13:00 LT |
| Type: |  Bell 47G-3B1 |
| Owner/operator: | Helicrops Ltd |
| Registration: | G-BCYZ |
| MSN: | WAS/205 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Stonor, 4 miles N of Henley-on-Thames, Oxfordshire -
 United Kingdom
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Stonor, Henley-on-Thames, Oxfordshire |
| Investigating agency: | AIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Written off (damaged beyond economic repair) 6.7.83 when crashed at Stonor, 4 miles north of Henley-on-Thames, Oxfordshire, during agricultural (crop-spraying/topdressing) operations
The helicopter was taking off from steeply sided wooded valley at Stonor, Oxfordshire. The take off involved a climb out for approximately 200 yards, then heading left at 40 degrees, to avoid flying over houses. This, however did involve flying over a road and a farm building.
The power limit was reached when flying over the road, and the additional collective pitch required to clear the farm building caused overpitching. Whilst attempting to restore rotor RPM, a heavy landing was made on a hillside approximately 100 yards beyond the farm building. The pilot was uninjured.
Damage to aircraft consisted of undercarriage destroyed, plus damage to centre frame, under panels, firewall and spray equipment. This would seem to be sufficient for the aircraft to be de-registered by the CAA on 11.8.88 as "destroyed"
(G-BCYZ was originally built for the Army Air Corps as a Westland Sioux HT.2, serial number XV319, c/no. WA573, and was delivered on 6.12.67. It was sold off, and civil registered as G-BCYZ on 10.3.75)
Accident investigation:
 |
|
Sources:
1. http://www.aaib.gov.uk/cms_resources.cfm?file=/Bell%2047G%203B1%20G-BCYZ%2010-83.pdf
2. http://www.caa.co.uk/docs/HistoricalMaterial/G-BCYZ.pdf
3. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=14451
4. http://www.ukserials.com/prodlists.php?type=1458
5. https://en.wikipedia.org/wiki/Stonor
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Jan-2013 10:44 | TB | Added |
| 09-Jan-2013 10:53 | TB | Updated [Registration] |
| 13-Jun-2014 21:49 | Dr. John Smith | Updated [Date, Time, Aircraft type, Registration, Cn, Operator, Total occupants, Location, Country, Phase, Nature, Departure airport, Source, Narrative] |
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