What was found
FOUND CENTER STRINGER ON BELLY CRACKED AT STA 191 BULKHEAD/FORMER. SUBMITTER STATED CRACKS IN THIS STRINGER HAVE BEEN FOUND AND REPAIRED IN NUMEROUS AIRCRAFT IN PA28 FLEET OF 55 AIRCRAFT. SOME AIRCRAFT HAVE 2 DIAGONAL STRINGERS, ALSO, AT THIS LOCATION. THEY ARE ALSO PRONE TO CRACKING.