B757-200 FO RESERVE HAD HIS REST TIME CHANGED AT THE LAST MIN BY THE ACR CREW DESK. THIS RESULTED IN THE PLT CALLING IN FATIGUED.

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QUICK CONVERT FROM REGULAR RESERVE TO LATE RESERVE. AT XA00 AM I WAS QUICK CONVERTED FROM A REGULAR RESERVE AND INFORMED I WOULD BE NEEDED FOR A TRIP LEAVING LAX AT XP40 THAT SAME NIGHT. LATER THAT MORNING I BECAME CONCERNED ABOUT BEING ADEQUATELY RESTED FOR THE ALL-NIGHTER. I HAPPENED TO BE A VERY LIGHT SLEEPER WITH A VIRTUAL INABILITY TO NAP AT WILL. I KNEW WELL AHEAD OF SIGN-IN; WITH A FAIRLY HIGH DEGREE OF ACCURACY THAT I WOULD NOT BE ADEQUATELY RESTED. THIS RAISED THE QUESTION; 'DO I CALL CREW SCHEDULING NOW; TO EXPLAIN I WOULD LIKELY BE FATIGUED LATER; OR SHOULD I WAIT UNTIL AFTER I ATTEMPT TO REST LATER IN THE DAY.' THE RESPONSIBLE CHOICE WAS TO CALL EARLY; ALLOWING TIME FOR TRIP COVERAGE. MY REASON FOR SUBMITTING THIS SCENARIO IS TO BRING TO LIGHT WHAT I BELIEVE TO BE UNSAFE PROVISIONS IN THE RESERVE REST AGREEMENT AND THE DISPROPORTIONATE COVERAGE OF REGULAR CATEGORY TO LATE CATEGORY RAPS (RESERVE). FIRST; QUICK CONVERT PROVISION ALLOWS CREW SCHEDULING TO CONVERT A REGULAR CATEGORY PLT TO A LATE CATEGORY RESERVE PLT WITH A PROTECTED TIME PERIOD OF 12 HRS. THIS DOES NOT CONSIDER A PLT'S NORMAL SLEEP/WAKE CYCLE; ABILITY TO NAP; ETC. THE AGREEMENT STATES; 'THAT THE QUICK CONVERT METHOD SHALL ONLY BE USED IF THERE ARE NO PLTS WHO CAN BE MADE AVAILABLE USING THE NORMAL CONVERT METHOD;' WHICH IMPLIES COVERAGE IS ZERO FOR THE LATE CATEGORY RESERVE IN QUESTION. WHEN THIS OCCURS BOTH CREW SCHEDULING AND THE ASSIGNED PLT ARE BEING PUT INTO A VERY PRECARIOUS POS. CREW SCHEDULING IS PUT INTO A TIME CRUNCH AND THE PLT IN A REST CRUNCH. CREW SCHEDULING HAS NO OPTION BUT TO QUICK CONVERT. THE PLT HAS NO OPTION BUT TO DETERMINE EARLY IF HE WILL BE PREPARED FOR A FLT SCHEDULED TO DEPART FROM 12-18 HRS AFTER AN EARLY MORNING CONVERT.