Narrative:

My duty started XT40 local time on feb/xx/95. When I picked up additional schedule I interpreted the 24 hours rest in 7 consecutive days (135.265(D)) as 7 consecutive days (not 7 calendar days). Thus I only had to have 24 hours rest before saturday XT40 local time. Crew schedule accepted my application and I flew as per schedule until friday X005 hours. As the flight delayed and I had to have 24 hours rest I called company scheduler but found that they interpret the 7 days as 7 calendar days instead of 7 consecutive days as shown on far. I argued the point without any change. I accepted schedule changes thinking that 7 consecutive days are not 7 calendar days. If the company's scheduler is right, I would exceed duty days as I flew 7 days everyday without 24 hours rest. However, I still think my rule interpretation is right, ie, my 7 days ends at XT40 hours after 7 days, and I had 24 consecutive hours before the 7 day expires. The crew scheduler overlooked my application and approved the additional flight pick up miscalculating the rest period. If their interpretation is right, they should not approve the schedule in the first place. I will be very conservative for next time.

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Original NASA ASRS Text

Title: COMMUTER FLC MEMBER QUESTIONS THE METHOD HIS COMPANY USES IN COMPUTING THE 7 DAY DUTY PERIOD FOR 24 HRS OF REQUIRED REST.

Narrative: MY DUTY STARTED XT40 LCL TIME ON FEB/XX/95. WHEN I PICKED UP ADDITIONAL SCHEDULE I INTERPRETED THE 24 HRS REST IN 7 CONSECUTIVE DAYS (135.265(D)) AS 7 CONSECUTIVE DAYS (NOT 7 CALENDAR DAYS). THUS I ONLY HAD TO HAVE 24 HRS REST BEFORE SATURDAY XT40 LCL TIME. CREW SCHEDULE ACCEPTED MY APPLICATION AND I FLEW AS PER SCHEDULE UNTIL FRIDAY X005 HRS. AS THE FLT DELAYED AND I HAD TO HAVE 24 HRS REST I CALLED COMPANY SCHEDULER BUT FOUND THAT THEY INTERPRET THE 7 DAYS AS 7 CALENDAR DAYS INSTEAD OF 7 CONSECUTIVE DAYS AS SHOWN ON FAR. I ARGUED THE POINT WITHOUT ANY CHANGE. I ACCEPTED SCHEDULE CHANGES THINKING THAT 7 CONSECUTIVE DAYS ARE NOT 7 CALENDAR DAYS. IF THE COMPANY'S SCHEDULER IS RIGHT, I WOULD EXCEED DUTY DAYS AS I FLEW 7 DAYS EVERYDAY WITHOUT 24 HRS REST. HOWEVER, I STILL THINK MY RULE INTERP IS RIGHT, IE, MY 7 DAYS ENDS AT XT40 HRS AFTER 7 DAYS, AND I HAD 24 CONSECUTIVE HRS BEFORE THE 7 DAY EXPIRES. THE CREW SCHEDULER OVERLOOKED MY APPLICATION AND APPROVED THE ADDITIONAL FLT PICK UP MISCALCULATING THE REST PERIOD. IF THEIR INTERP IS RIGHT, THEY SHOULD NOT APPROVE THE SCHEDULE IN THE FIRST PLACE. I WILL BE VERY CONSERVATIVE FOR NEXT TIME.

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.