Finally, and referring back to my previous two posts; Does anyone concur with my theory that the Liverpool - Thornaugh Twin-Squirrel tragedy would not have occurred had the pilot not had GPS moving map displays?
JJ, I don't concur with that. Having read the AAIB report on the accident, the initial cause seem to have been a misidentified navigation IP, coupled with confusion and disorientation in bad weather after the descent and a failure to achieve a safe go-around to a safe altitude when sufficient ground references were lost.
If the pilot had planned and flown a more helpful GPS plan he might have realised that the first set of ground lights was not what and where he thought. Had he not had the GPS he might still have misidentified the IP and the outcome might well have been the same.
Basically, it seems he tried to follow a VMC plan into IMC and became disorientated to the point that terrain separation and/or control was lost.