What was found
CAP ASSY NUT WAS ADJ TO EASE LOCKING COMPLAINT. P & W MM DOES NOT ADDRESS ADJ. A REPLACEMENT CAP ASSY PN 3102382-01 WAS INSTALLED. IT, TOO, WAS ADJ FOR STIFF LOCKING MECHANISM. IN ADDITON, THE LENGTH OF THE DIPSTICK DEFEATED THE CHECK BALL INSTALLED VIA P & W SB 1451. THE RESULT WAS AN UNSCHED STOP AND LOSS OF 4 QTS OF ENG OIL. SUBMITTER STATED P & W SHOULD LOOK AT RE-ENGINEERING ADJ PROTION OF OIL CAP ASSY. MANUAL SHOULD ADDRESS IN THE FORM OF A 'WARNING', THE CONSEQUENCES OF ADJUSTMENT TO THE OIL CAP ASSY. IPC SHOULD REMOVE THE INTERCHANGABILITY OF PN 3102382-01 AND 3115095-01. INVENTORY OF 3102382-01 SHOULD BE PURGED OR MODIFIED PER P & W SB 1451.