Narrative:

Passenger flight was to depart dfw at XB15. Crew (myself and first officer) reported on duty at XA15. We were on reduced rest since we brought the flight in the night before. We departed the gate at dfw at XB15. Taxied out to runway 36L for departure. We were cleared for takeoff and I added power. We received a caution light telling us of a possible bleed air leak. We aborted the takeoff roll at 80 KTS. We taxied back to the gate and the flight was canceled. Contract mechanic showed up and we taxied out to do engine runup. Loud popping noise was heard on right engine. Taxied back to gate and shut down. Flight was canceled. Flight attendants were sent home on next outbound flight about 2 hours later. Company mechanics were called in and placed on next scheduled dfw flight that afternoon. They were to arrive at XK20. First officer and I went on crew rest since I lived near the area where dfw airport is located. We went to my house to spend the day. We were called back out to fly the aircraft home. The problem arose when we looked at our off duty time. We are not sure that we got the necessary 10 hours of required rest. We had to be totally free of duty at XQ13, saturday night. We pushed from the gate at dfw at XN47. We arrived at our base at XP55. Even though I was in my car at XQ05, we were later told we busted our crew rest by one of the crew schedulers by 12 mins. The computer crew scheduling uses automatically attaches 30 mins onto the block in time. We therefore had to go back and change our paperwork to show we had the required crew rest during the day at my house. This whole thing could have been avoided if dispatch was told by crew scheduling that we had to be on the ground by XQ13. First officer informed me all day that we had to be on the ground by XP43. I assumed, as did dispatch, that the 30 min window could be waived. It can't, according to the FAA. This 30 min window is used so our computers can calculate per diem pay. It's in our manual, so the FAA mandates it as hard law, even though we were on the ground at XP55, 18 mins until the cutoff time. I feel this could have been avoided by: 1) easier rest rules that are easily spelled out with no gray areas. 2) better communication between dispatch, crew scheduling, and flcs at out stations. 3) hard times set by crew scheduling (example: cutoff time relayed to dispatch). 4) FAA concerned with when aircraft is on the ground and not with company rules.

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Original NASA ASRS Text

Title: MLG ACFT FLC WAS ON DUTY OVER FAR REQUIREMENTS FOR CREW REST.

Narrative: PAX FLT WAS TO DEPART DFW AT XB15. CREW (MYSELF AND FO) RPTED ON DUTY AT XA15. WE WERE ON REDUCED REST SINCE WE BROUGHT THE FLT IN THE NIGHT BEFORE. WE DEPARTED THE GATE AT DFW AT XB15. TAXIED OUT TO RWY 36L FOR DEP. WE WERE CLRED FOR TKOF AND I ADDED PWR. WE RECEIVED A CAUTION LIGHT TELLING US OF A POSSIBLE BLEED AIR LEAK. WE ABORTED THE TKOF ROLL AT 80 KTS. WE TAXIED BACK TO THE GATE AND THE FLT WAS CANCELED. CONTRACT MECH SHOWED UP AND WE TAXIED OUT TO DO ENG RUNUP. LOUD POPPING NOISE WAS HEARD ON R ENG. TAXIED BACK TO GATE AND SHUT DOWN. FLT WAS CANCELED. FLT ATTENDANTS WERE SENT HOME ON NEXT OUTBOUND FLT ABOUT 2 HRS LATER. COMPANY MECHS WERE CALLED IN AND PLACED ON NEXT SCHEDULED DFW FLT THAT AFTERNOON. THEY WERE TO ARRIVE AT XK20. FO AND I WENT ON CREW REST SINCE I LIVED NEAR THE AREA WHERE DFW ARPT IS LOCATED. WE WENT TO MY HOUSE TO SPEND THE DAY. WE WERE CALLED BACK OUT TO FLY THE ACFT HOME. THE PROB AROSE WHEN WE LOOKED AT OUR OFF DUTY TIME. WE ARE NOT SURE THAT WE GOT THE NECESSARY 10 HRS OF REQUIRED REST. WE HAD TO BE TOTALLY FREE OF DUTY AT XQ13, SATURDAY NIGHT. WE PUSHED FROM THE GATE AT DFW AT XN47. WE ARRIVED AT OUR BASE AT XP55. EVEN THOUGH I WAS IN MY CAR AT XQ05, WE WERE LATER TOLD WE BUSTED OUR CREW REST BY ONE OF THE CREW SCHEDULERS BY 12 MINS. THE COMPUTER CREW SCHEDULING USES AUTOMATICALLY ATTACHES 30 MINS ONTO THE BLOCK IN TIME. WE THEREFORE HAD TO GO BACK AND CHANGE OUR PAPERWORK TO SHOW WE HAD THE REQUIRED CREW REST DURING THE DAY AT MY HOUSE. THIS WHOLE THING COULD HAVE BEEN AVOIDED IF DISPATCH WAS TOLD BY CREW SCHEDULING THAT WE HAD TO BE ON THE GND BY XQ13. FO INFORMED ME ALL DAY THAT WE HAD TO BE ON THE GND BY XP43. I ASSUMED, AS DID DISPATCH, THAT THE 30 MIN WINDOW COULD BE WAIVED. IT CAN'T, ACCORDING TO THE FAA. THIS 30 MIN WINDOW IS USED SO OUR COMPUTERS CAN CALCULATE PER DIEM PAY. IT'S IN OUR MANUAL, SO THE FAA MANDATES IT AS HARD LAW, EVEN THOUGH WE WERE ON THE GND AT XP55, 18 MINS UNTIL THE CUTOFF TIME. I FEEL THIS COULD HAVE BEEN AVOIDED BY: 1) EASIER REST RULES THAT ARE EASILY SPELLED OUT WITH NO GRAY AREAS. 2) BETTER COM BTWN DISPATCH, CREW SCHEDULING, AND FLCS AT OUT STATIONS. 3) HARD TIMES SET BY CREW SCHEDULING (EXAMPLE: CUTOFF TIME RELAYED TO DISPATCH). 4) FAA CONCERNED WITH WHEN ACFT IS ON THE GND AND NOT WITH COMPANY RULES.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.