To ask the Secretary of State for Defence pursuant to the answer of 4 February 2014, Official Report, column 171W, on military aircraft, how many Aircrew Moving Map Wire Alerting System units have now been released to service; on what dates such units were released to service; and when he expects further such units to be released to service.

All units required under the contract have now been delivered to the Ministry of Defence with the first equipment being released to service for use on the Puma HC2 on 11 March 2014. The Release to Service Recommendations (RTSR) to support the use of the equipment on Lynx Mk7 was submitted on 13 March 2014 and release to service will follow approval of these recommendations. The evidence to support the RTSR for the remaining fleets are being prepared and will be submitted by the summer once aircraft type specific trials and checks are completed.