What was found
SUBMITTER OPERATES TWO PIPER NAVAJO CHIEFTAIN AIRCRAFT DAILY DURING THE WORK WEEK AND FINDS THAT THE RT OUTBOARD ELEVATOR HINGE ATTACHMENT TO THE HORIZ STAB IS AN AREA OF CONCERN DUE TO THE FREQUENCY OF THESE HINGES CRACKING. FIND THESE HINGES ARE CRACKING IN THE AREAS OF THE BEND RADIUS OF THE HINGE MOUNTING FLANGES. THESE HINGES ARE OF THE IMPROVED TYPE IAW WITH PIPER SB NR G87. IT IS SUBMITTER'S OPINION THAT THESE HINGES BE MADE OF CAST MATERIAL OR CONSTRUCTED OF HEAVIER MATERIAL AND FIT IMPROVED.