Chears for that link will pass it onto my Father. Would love to see the photos if any exist. My father said for him to see this , at the exact time he desided to look out the windown must have been very small, as he was just passing by and clanced out, I would guess this was teh same time as the chap on the mail run.
I was told that the undercarriage lever had been sellected to "up" by accident and that the failure of the micro switch was the final safegaurd. When in service you can tretract teh undercarriage win on jacks. all you have to do is select the lever and make sure you turn it to overcome the ground lockout.