http://quwa.org/2016/07/11/german-firm- ... i-atr-72s/
http://quwa.org/2016/07/11/german-firm- ... i-atr-72s/German firm receives contract to configure Pakistani ATR-72s
Rheinland Air Service (RAS), a German firm specializing in airliner maintenance, repair and overhaul (MRO) as well as other support tasks, was awarded a contract by the Pakistan Navy to convert two ATR-72 aircraft for anti-submarine warfare (ASW).
Although the company did not explicitly note that the ATR-72 would be converted, Pakistan Navy ATRs were spotted at RAS’s facilities in Germany in recent weeks. RAS was contracted to re-configure two Pakistani ATR-72s, with the first slotted for delivery by the end of 2017.
RAS expects additional Pakistani orders in the coming years.
The current iteration of the ATR-72 ASW – currently on offer by Italian vendor Leonardo-Finmeccanica – uses the ATR-72-600 as its base platform. This aircraft is capable of ASW operations through the use of a fitted sono-buoy launcher (for underwater acoustic detection) and pylons for lightweight ASW torpedoes.
The Pakistan Navy operates the slighter smaller ATR-72-500, but this should not impact its likelihood of being an ATR-72 ASW. RAS made very explicit mention of the aircraft’s use as a ASW platform, and it is worth noting that Turkey did intend to use the ATR-72-500 as the basis for its program, before shifting to the ATR-72-600 (which is currently serving as the basis for the Turkish Maritime Patrol Aircraft or TMPA).
ATR-72 ASWs will be a welcome addition to the Pakistan Navy’s maritime patrol aircraft (MPA) fleet, which has yet to fully recover from the loss of two Lockheed Martin P-3C Orion in 2011 (from an insurgent attack on the naval base PNS Mehran). It currently has seven P-3Cs in service.
has some more links about this project.