SF34 CREW ABORTED 2 TKOFS BECAUSE OF 'OIL PRESSURE MASTER WARNING.'

Narrative

ON INITIAL TKOF ROLL; R ENG 'OIL PRESSURE MASTER WARNING' SOUNDED AND LIGHT CAME ON. AN ABORT WAS INITIATED. AFTER CLRING THE RWY AND STOPPING; DISPATCH AND MAINT WERE CALLED. OTHER THAN THE WARNING; NO OTHER ANOMALIES WERE NOTED. THE WARNING CLRED AND ALL INDICATED NORMAL AFTER THE ABORT. SINCE NO ABNORMAL INDICATIONS REMAINED AND AFTER IN-DEPTH CONVERSATIONS; WE TAXIED BACK FOR ANOTHER TKOF ATTEMPT. THE SAME RESULT OCCURRED ALBEIT SOONER IN THE TKOF ROLL. A SECOND ABORT WAS MADE AND WE THEN RETURNED TO THE GATE. WE SWAPPED TO ANOTHER ACFT THAT WAS OVERNIGHTING AND LATER DEPARTED WITHOUT FURTHER INCIDENT. THE NEXT DAY IT WAS DISCOVERED THAT THE ENG WAS 3 PINTS LOW ON OIL. THIS CAUSED A MOMENTARY UNPORTING OF THE OIL PICKUP AS THE OIL MOVED AFT DURING THE TKOF ROLL. THE ACFT HAD AN INSPECTION WITHIN 24 HRS OF OUR FLT; IN WHICH THE OIL LEVEL WAS SUPPOSED TO BE CHKED/FILLED. THE ACFT HAD ALSO FLOWN 3-4 LEGS PRIOR TO THE FLT IN QUESTION. THAT CAPT AND I HAD RELAYED A SIMILAR EXPERIENCE I HAD 1 MONTH PRIOR; WHEN THE OIL QUANTITY WAS FOUND TO BE LOW IN A DIFFERENT ACFT. MANY OF THE INDICATIONS WERE SIMILAR ALTHOUGH PREVIOUSLY THE ENG INSTS; A MONTH BEFORE; ALSO SHOWED PROBS. ON THIS OCCASION THERE WERE NO ABNORMALITIES NOTED ON THE GAUGES DURING THE TKOF ATTEMPTS. MAINT CTL SAID IT WAS OK TO ATTEMPT THE SECOND TKOF AND THE DISPATCHER AGREED. THE CAPT AND I WERE ALSO COMFORTABLE WITH A SECOND ATTEMPT. COMPANY PROCS WERE FOLLOWED DURING ALL ASPECTS OF THE SIT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: PLT HAS HAD ONE OTHER ABORT BECAUSE OF OIL PRESSURE PROBS ON TKOF. HE PERSONALLY KNOWS OF 4 OTHER INCIDENTS. ONE REQUIRED AN ENG CHANGE BECAUSE OF THE LENGTH OF TIME THE ENG RAN WITHOUT OIL PRESSURE. RPTR ALLEGES THAT HIS COMPANY MAINT SCHEDULE ONLY CALLED FOR THE ENG OIL TO BE CHKED ON A WKLY BASIS. THE FAA PMI HAS NOW REQUIRED AN ACTUAL 'FILL THE TANK TO THE SVC CAP' CHK OF A DAILY BASIS. THE ACFT DOES NOT HAVE OIL QUANTITY INDICATION IN THE COCKPIT. THE FLC DOES NOT CHK THE OIL QUANTITY ON THE ACFT WALKAROUND; AS THIS REQUIRES OPENING AN ENG PANEL. THIS IS A MAINT FUNCTION. RPTR DOESN'T UNDERSTAND WHY THE ACFT MANUFACTURER COULD INSTALL SUCH A SMALL TANK WITH A SIGHT GAUGE THAT INDICATES OIL IS ABOVE THE REFILL MARK; WHEN IN FACT; IT NEEDS OIL SVC.