What was found
(CAN) UPON INSPECTION OF PARTS REMOVED FROM P-6311 AT TIME OF OVERHAUL IT WAS FOUND THE FRONT SCAVENGE PUMP DRIVE SHAFT SAFETY COLLAR WAS APPROXIMATELY .209 SMALLER THAN THE REPLACEMENT PARTS. 897197-3 SHAFT FROM P-63111 IS .499, 897197-3 SHAFT FROM OTHER ENGINES AND STOCK IS .708. THIS CAN ALLOW UNCOUPPLING OF THE PUMP. PICTURES OF 897197-3 SHAFTS INCLUDED.2000-12-07 TC: THIRD OCCURENCE, SEE ALSO SDR20000606015, SDR 20000606016, PROJECT 20000168, FAA PRESENTLY INVESTIGATING.