div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Letter 20 April 2011 - ClassNK · IA CS Recommendation No 53-2 IMO MSCCirc 1312 MSCCirc670 and MSCCirc 798 Fixed foam extinguishing systems should be inspected every two years src=https:reader033fdocumentsinreader033viewer20220425215f4c7b45468e72753e6f796chtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Letter 20 April 2011 - ClassNK · IA CS Recommendation No 53-2 IMO MSCCirc 1312 MSCCirc670 and MSCCirc 798 Fixed foam extinguishing systems should be inspected every two years src=https:reader033fdocumentsinreader033viewer20220425215f4c7b45468e72753e6f796chtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Letter 20 April 2011 - ClassNK · IA CS Recommendation No 53-2 IMO MSCCirc 1312 MSCCirc670 and MSCCirc 798 Fixed foam extinguishing systems should be inspected every two years src=https:reader033fdocumentsinreader033viewer20220425215f4c7b45468e72753e6f796chtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Letter 20 April 2011 - ClassNK · IA CS Recommendation No 53-2 IMO MSCCirc 1312 MSCCirc670 and MSCCirc 798 Fixed foam extinguishing systems should be inspected every two years src=https:reader033fdocumentsinreader033viewer20220425215f4c7b45468e72753e6f796chtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: Letter 20 April 2011 - ClassNK · IA CS Recommendation No 53-2 IMO MSCCirc 1312 MSCCirc670 and MSCCirc 798 Fixed foam extinguishing systems should be inspected every two years...