[68 Sqn]

Mosquito flying accident 68 Sqn

Hello All
When checking ORB 68 Squadron RAF (Record Sheet B) I found an extremely interesting Mosquitoes flying accidents.
18th September 1944 flying accident (cat. E) - D.H.Mosquito NF.Mk.XVII - Serial HK?? (illegible)
8th November 1944 flying accident (cat. AC) - D.H.Mosquito NF.Mk.XVII - Serial HK?? (illegible)
5th December 1944 flying accident (cat. B) - D.H.Mosquito NF.Mk.XVII - Serial HK?? (illegible)
Unfortunately, I do not know what to do. Http www.dehavilland.ukt.net - does not answer.
Identification numbers of mosquitoes are totally illegible.
Can anyone help? Any information greatly appreciated.
Pavel