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ASN Wikibase Occurrence # 230187
Last updated: 17 September 2020
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Date:05-APR-2018
Time:11:40 LT
Type:Silhouette image of generic EC35 model; specific model in this crash may look slightly different
Eurocopter EC 135P2+
Owner/operator:National Police Air Service (NPAS)
Registration: G-POLA
C/n / msn: 0877
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:Morpeth, Northumberland -   United Kingdom
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Test
Departure airport:Newcastle Airport (NCL)
Destination airport:Newcastle Airport (NCL)
Investigating agency: AAIB
Narrative:
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.

Sources:

https://www.gov.uk/aaib-reports/aaib-investigation-to-ec135-p2-g-pola
http://aerossurance.com/helicopters/ec135p2-nr-control-loss/

Accident investigation:
cover
  
Investigating agency: AAIB
Status: Investigation completed
Duration: 1 year and 8 months
Download report: Final report


Images:

Photo of G-POLA courtesy AirHistory.net


Birmingham - International (EGBB / BHX)
16 February 2014; (c) Danny Grew

Revision history:

Date/timeContributorUpdates
24-Oct-2019 18:49 Aerossurance Added
13-Dec-2019 20:20 harro Updated [Embed code, Accident report, ]

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