ASN Wikibase Occurrence # 230187
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| Date: | Thursday 5 April 2018 |
| Time: | 11:40 LT |
| Type: |  Eurocopter EC 135P2+ |
| Owner/operator: | National Police Air Service (NPAS) |
| Registration: | G-POLA |
| MSN: | 0877 |
| Year of manufacture: | 2010 |
| Engine model: | Pratt & Whitney Canada PW206B2 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Morpeth, Northumberland -
 United Kingdom
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Test |
| Departure airport: | Newcastle Airport (NCL/EGNT) |
| Newcastle Airport (NCL/EGNT) | |
| Investigating agency: | AAIB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
During a maintenance flight to adjust engine speed, main rotor rpm varied between its maximum and minimum continuous limits. A mechanical stop within the adjusting potentiometer had failed in such a way that main rotor speed could not be controlled accurately, putting the helicopter at a significant risk.
Accident investigation:
 |
|
Sources:
https://www.gov.uk/aaib-reports/aaib-investigation-to-ec135-p2-g-pola
http://aerossurance.com/helicopters/ec135p2-nr-control-loss/
Media:
Eurocopter EC135 serious incident, Northumberland https://t.co/q4SzTMIdbu pic.twitter.com/DUINvzF5SF
— AAIB (@aaibgovuk) October 24, 2019
#OTD in 2018 A loss of control of N2, and therefore of NR, was caused by the absence of the stop ring mechanism within this EC135P2's N2 adjuster.https://t.co/8FDzSZAV3r #helicopter #flightsafety #aviationsafety pic.twitter.com/hozbPJPlQF
— Aerossurance (@Aerossurance) April 5, 2021
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2019 18:49 | Aerossurance | Added |
| 13-Dec-2019 20:20 | harro | Updated [Embed code, Accident report, ] |
| 05-Apr-2021 09:35 | Aerossurance | Updated [Departure airport, Destination airport, Embed code] |
Corrections or additions? ... Edit this accident description
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