Hi DiVosh,
PNF (PM) wasn't all to blame for that one...mostly yes, but look at what the PF says during the takeoff sequence:
10:16:24 PF take off, my controls
10:16:25 PNF your controls
10:16:27 PNF spoiler is closed
10:16:30 PNF autofeather armed
10:16:33 PF looks like spring
10:16:35 PNF yeah, power is checked
10:16:36 PNF 80 knots
10:16:37 PF checked
10:16:40 PNF V1, rotate
10:16:42 Background click sound, probably gear lever UP
10:16:43 PNF upps, sorry
"Looks like spring"...!
Random chatter/comments during that phase or radio calls directed to you with no relevant information can be very distracting (evidently with this accident) and highly unprofessional. Distracting enough to even cause some people to 'fart'.
If the investigation went back over so many flights to check to see if the PNF was doing early retracts, I think it would've been a good idea to see if the PF was making random, distracting comments through such a critical phase of flight as well. (I understand CVR's rewriting themselves would make this hard)
Good idea to read the 'GEAR UP' next to the lever (to yourself) before using it.