Police helicopter crashes onto Glasgow pub

[G0ULI]

SilsoeSid
Accepted that a faulty display can be useless, analogue or digital. There was a fault code recorded for the display but it is unknown from the AAIB report as to what effect this would have on the information available to the pilot.

Given that the crew were all equipped with night vision goggles, it is possible that there are ergonomic issues switching between using the goggles and unaided vision. I assume that the display brightness needs to be manually adjusted down quite a bit to avoid dazzle when using night vision goggles. If the googles are removed and the display brightness is left at very low level, then perhaps this could be an explaination for not noticing the developing fuel situation?

The AAIB report is quite specific in stating that there is no evidence of impact damage while the helicopter was airborne, the fuel system should have allowed free flow of fuel had the supply tanks been full, there were no anomalous chips or metal particles on the chip detectors, and that all damage found was consistent with a high deceleration impact.

So we are left with two switches in the wrong position and some sort of display fault that may or may not have affected the flight display panel. Everything else can be attributed to the engines flaming out sequentially.

At the point the second engine failed, it should have been possible to carry out an autorotation. This clearly didn't happen, so we are left with human factors and cockpit ergonomics as probable causes.