What was found
P/N 50-420028-48, BULKHEAD, P/N 50-420028-47, BULKHEAD. PRESSURE BULKHEADS ARE CRACKED AT FS 177.0 AND WATERLINE 90.0 ON BOTH LEFT AND RIGHT SIDES OF AIRCRAFT. RIGHT CRACK HAS ALSO PROCEEDED TO THE OUTSIDE SKIN. SUBMITTER STATED WILL BE REPAIRED PER BEECH ENGINEERING REF KLR/0675-98 9-21-98.