You can find below the airports code where the Q400s are parked.
REG AIRCRAFT TYPE CONFIG DELIVERED REMARK AIRCRAFT NAME AGE
G-ECOA Bombardier DHC-8-400 Y78 Dec 2007 Stored EXT 12.7 Years
G-ECOB Bombardier DHC-8-400 Y78 Jun 2009 Stored GLA 12.6 Years
G-ECOC Bombardier DHC-8-400 Y78 Dec 2009 Stored CWL, lsd 12.2 Years
G-ECOD Bombardier DHC-8-400 Y78 Jul 2008 Stored ABZ, lsd 12.1 Years
G-ECOE Bombardier DHC-8-400 Y78 Jun 2010 Stored SOU 12 Years
G-ECOF Bombardier DHC-8-400 Y78 Aug 2010 Stored MAN, lsd 11.9 Years
G-ECOG Bombardier DHC-8-400 Y78 Oct 2008 Stored BHX, lsd 11.7 Years
G-ECOH Bombardier DHC-8-400 Y78 May 2014 Stored SOU, lsd Scotland 11.7 Years
G-ECOI Bombardier DHC-8-400 Y78 Oct 2017 Stored MAN, lsd 11.7 Years
G-ECOJ Bombardier DHC-8-400 Y78 Jan 2009 Stored ABZ, lsd 11.6 Years
G-ECOK Bombardier DHC-8-400 Y78 Oct 2017 Stored SOU, lsd 11.6 Years
G-ECOM Bombardier DHC-8-400 Y78 Dec 2008 Stored SOU, lsd 11.5 Years
G-ECOO Bombardier DHC-8-400 Y78 Jan 2009 Stored EXT, lsd 11.2 Years
G-ECOP Bombardier DHC-8-400 Y78 Apr 2009 Stored MAN, lsd 11.3 Years
G-ECOR Bombardier DHC-8-400 Y78 Apr 2009 Stored BHX, lsd 11.2 Years
G-ECOT Bombardier DHC-8-400 Y78 May 2009 Stored MAN, lsd 10.9 Years
G-FLBA Bombardier DHC-8-400 Y78 Jul 2009 Stored BHD, lsd 10.9 Years
G-FLBB Bombardier DHC-8-400 Y78 Jul 2009 Stored BHX, lsd 11.1 Years
G-FLBC Bombardier DHC-8-400 Y78 Jul 2009 Stored EXT, lsd 11 Years
G-FLBD Bombardier DHC-8-400 Y78 Oct 2010 Stored BHX, lsd Spirit of Inverness 11 Years
G-FLBE Bombardier DHC-8-400 Y78 Oct 2010 Stored NQY, lsd Spirit of Exeter 10.9 Years
G-JECK Bombardier DHC-8-400 Y78 Jan 2006 Stored ABZ, lsd 14.4 Years
G-JECL Bombardier DHC-8-400 Y78 Jan 2006 Stored EXT, lsd 14.4 Years
G-JECM Bombardier DHC-8-400 Y78 Apr 2006 Stored SOU, lsd 14.3 Years
G-JECN Bombardier DHC-8-400 Y78 Apr 2006 Stored EDI, lsd 14.1 Years
G-JECO Bombardier DHC-8-400 Y78 Jul 2006 Stored EXT, lsd 14 Years
G-JECP Bombardier DHC-8-400 Y78 Oct 2006 Stored GLA, lsd 13.7 Years
G-JECR Bombardier DHC-8-400 Y78 Dec 2006 Stored EDI, lsd, Cancer Research sticker 13.6 Years
G-JECX Bombardier DHC-8-400 Y78 Jun 2007 Stored IOM, lsd 13.1 Years
G-JECY Bombardier DHC-8-400 Y78 Mar 2014 Stored MAN, lsd Scotland 13.2 Years
G-JECZ Bombardier DHC-8-400 Y78 Nov 2007 Stored BHX, lsd 12.7 Years
G-JEDM Bombardier DHC-8-400 Y78 Jul 2003 Stored EXT 17.7 Years
G-JEDP Bombardier DHC-8-400 Y78 Jan 2004 Stored EXT Spirit of Belfast 16.4 Years
G-JEDR Bombardier DHC-8-400 Y78 Mar 2004 Stored EXT Spirit of Dublin 16.3 Years
G-JEDT Bombardier DHC-8-400 Y78 Mar 2004 Stored BHD Spirit of Edinburgh 16.2 Years
G-JEDU Bombardier DHC-8-400 Y78 Apr 2004 Stored BHD Spirit of the Regions 16.2 Years
G-JEDV Bombardier DHC-8-400 Y78 May 2004 Stored GLA Glasgow Abbotsinch International (GLA / EGPF)16.2 Years
G-JEDW Bombardier DHC-8-400 Y78 Jul 2004 Stored EDI 16.2 Years
G-KKEV Bombardier DHC-8-400 Y78 Apr 2008 Stored MAN, lsd 12.2 Years
G-PRPA Bombardier DHC-8-400 Y78 May 2015 Stored EDI 12.5 Years
G-PRPB Bombardier DHC-8-400 Y78 Jul 2015 Stored BHD 9.7 Years
G-PRPC Bombardier DHC-8-400 Y78 Aug 2015 Stored SOU 9.6 Years
G-PRPD Bombardier DHC-8-400 Y78 Nov 2015 Stored DUS 9.7 Years
G-PRPE Bombardier DHC-8-400 Y78 Apr 2016 Stored BHD 12 Years
G-PRPF Bombardier DHC-8-400 Y78 Dec 2016 Stored BHD 12.4 Years
G-PRPG Bombardier DHC-8-400 Y78 Nov 2016 Stored BHD 12.5 Years
G-PRPH Bombardier DHC-8-400 Y78 Oct 2016 Stored EXT 9.8 Years
G-PRPI Bombardier DHC-8-400 Y78 Sep 2016 Stored EDI 12.1 Years
G-PRPJ Bombardier DHC-8-400 Y78 Dec 2016 Stored EDI, lsd 12.2 Years
G-PRPK Bombardier DHC-8-400 Y78 Feb 2017 Stored EXT, lsd 12.1 Years
G-PRPL Bombardier DHC-8-400 Y78 Apr 2015 Stored BHX 8.7 Years
G-PRPM Bombardier DHC-8-400 Y78 Apr 2017 Stored EDI, lsd 12.5 Years
G-PRPN Bombardier DHC-8-400 Y78 Mar 2017 Stored EXT, lsd 11.9 Years
G-PRPO Bombardier DHC-8-400 Y78 May 2017 Stored MAN, lsd 11.9 Years