ASN Wikibase Occurrence # 206283
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Date: | Thursday 1 February 2018 |
Time: | 11:00 LT |
Type: | Sikorsky S-61N |
Owner/operator: | British International Helicopters |
Registration: | G-ATBJ |
MSN: | 61269 |
Year of manufacture: | 1965 |
Engine model: | General Electric CT58-140-2 |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Marchwood Military Port, Marchwood, Hampshire -
United Kingdom
|
Phase: | Take off |
Nature: | Ferry/positioning |
Departure airport: | Marchwood Sea Mounting Centre, Hampshire |
Destination airport: | Bournemouth International Airport (BOH/EGHH) |
Investigating agency: | AAIB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The helicopter was being transferred from Marchwood, Hampshire, to a maintenance base having been transported, by sea, from the Falkland Islands. As the helicopter took off for a hover check it pitched nose-down. The commander promptly lowered the collective and the helicopter struck the ground on its nose, before coming to rest on its landing gear.
The investigation found that the spherical bearing within the swashplate had seized as a result of corrosion, compounded by inactivity during the voyage from the Falkland Islands. The checks prior to the flight did not identify the control restriction.
Safety action has been taken by the helicopter manufacturer to highlight the correct pre flight procedures to follow after prolonged aircraft inactivity, and by the operator to remind flight crews to conduct flight control servo system checks to the maximum extents of control movement.
Accident investigation:
|
| |
Investigating agency: | AAIB |
Report number: | EW/C2018/02/01 |
Status: | Investigation completed |
Duration: | 2 years |
Download report: | Final report |
|
Sources:
NTSB
2.
https://abpic.co.uk/pictures/view/1473834 3.
https://www.gov.uk/government/publications/aaib-current-field-investigations/air-accidents-investigation-branch-current-field-investigations 4.
https://www.pprune.org/rotorheads/605764-s61-g-atbj-damaged.html 5. AAIB Final Report:
https://www.gov.uk/aaib-reports/aaib-investigation-to-sikorsky-s-61n-sea-king-g-atbj 6.
http://aerossurance.com/helicopters/s61n-swashplate-seized/ Images:
Photo: AAIB
Media:
Revision history:
Date/time | Contributor | Updates |
17-Feb-2018 15:56 |
Geno |
Added |
23-Feb-2018 08:45 |
Anon. |
Updated [Location] |
23-Feb-2018 10:01 |
Anon. |
Updated [Date] |
23-Feb-2018 11:58 |
Aerossurance |
Updated [Location, Departure airport, Narrative] |
27-Mar-2018 09:20 |
Aerossurance |
Updated [Source, Damage, Narrative] |
18-Oct-2018 17:27 |
Dr.John Smith |
Updated [Location, Nature, Departure airport, Source, Narrative] |
01-Feb-2020 15:37 |
harro |
Updated [Time, Nature, Departure airport, Destination airport, Narrative, Photo, Accident report, ] |
01-Feb-2020 21:21 |
Dr. John Smith |
Updated [Destination airport, Source, Embed code, Narrative] |
03-Feb-2020 14:26 |
plcedi |
Updated [Source, Embed code, Damage, Narrative] |
07-Feb-2020 21:59 |
Aerossurance |
Updated [Time, Location, Phase, Source, Narrative] |
12-Nov-2023 18:11 |
harro |
Updated [Other fatalities, Source] |
17-Nov-2023 18:56 |
harro |
Updated [Other fatalities, Accident report] |
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