I can only speak for the AAC aircraft over the past 15years..
23-APR-2013 Westland Lynx British Army Air Corps (AAC) 0 Kandahar Airfield
Weather damage (Hail)
01-DEC-2011 Westland Lynx AH7 XZ210 British Army Air Corps (AAC) 0 near Tatenhausen, Halle (Westfalen)
Servicing error/SOAP sample error
18-MAR-2007 Westland Lynx AH7 ZD276 British Army Air Corps (AAC) 0 Crossmaglen, Northern Ireland
Pilot Error
06-MAY-2006 Westland Lynx AH7 XZ614 Royal Marines Commando 5 Basra
Enemy Action
21-FEB-2005 Westland Lynx AH7 XZ646 Royal Marines Commando 0 Modrinja, near Sarajevo
Wire Strike.
09-SEP-2004 Westland Lynx AH9 ZE382 British Army Air Corps (AAC) 6 Namest nad Oslavou, 19 mi W of Brn
Wire Strike.
19-SEP-2001 Westland Lynx AH9 ZG922 British Army Air Corps (AAC) 0 Omani desert
Pilot error during dust take off at night.
23-FEB-2001 Westland Lynx AH7 XZ664 British Army Air Corps (AAC) 0 RAF Leeming, North Yorkshire
Mechanical failure/Tail Rotor
17-APR-2000 Westland Lynx AH7 XZ207 British Army Air Corps (AAC) 0 Boxberg
Mechanical Failure/tail rotor
02-MAR-2000 Westland Lynx AH7 XZ662 British Army Air Corps (AAC) 0 Mullaghbawn, Northern Ireland
Enemy Action.
The obvious two TR incidents stick out…..but what about the rest?
Sprucemoose is right, the Mk9A has been working hard with no incident thus far.
If you went down the list and stripped out all of the non-tech faults and took account for the way in which military aircraft are operated. Apart from a period in the 90's it has performed well.
Hardly a surprise when the design has been around so long.