Narrative:

16 hour crew duty day violation, from ZZZ1 us. First flight was XA00Z, report was operations normal. Next flight scheduled to depart 8 hours later. Due to WX diverts, etc, flight blocked out 2 hours 45 mins late. Flight was scheduled allowing 10 min taxi in, leaving a 19 minute pad. Upon pushback at ZZZ, towbar broke, requiring replacement and maintenance inspection. Ramp dispatch controller initially held flight, but I told him of possible crew day violation. They called back shortly with start clearance. After towbar broke, I contacted flight control and told of crew time. They said since we pushed already, continue. Flight departed runway 22L, a long taxi, and we were #2 for takeoff. Flight departed 3 hours 15 mins late. Experienced 4 min delay in-flight/en route. Upon arrival, approach control slowed and vectored us early. Runway 7R was used. Planned for runway 25L (shorter flight). Approach also vectored us for a declared emergency by oak VORTAC. Total duty day of 16 hours 6 mins.

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Original NASA ASRS Text

Title: A B767 CARGO FLT CREW EXCEEDS THEIR SCHEDULED ON DUTY TIME OF 16 HRS BY 6 MINS DUE TO WX AND MAINT RELATED DELAYS AT ZZZ1, US.

Narrative: 16 HR CREW DUTY DAY VIOLATION, FROM ZZZ1 US. FIRST FLT WAS XA00Z, RPT WAS OPS NORMAL. NEXT FLT SCHEDULED TO DEPART 8 HRS LATER. DUE TO WX DIVERTS, ETC, FLT BLOCKED OUT 2 HRS 45 MINS LATE. FLT WAS SCHEDULED ALLOWING 10 MIN TAXI IN, LEAVING A 19 MINUTE PAD. UPON PUSHBACK AT ZZZ, TOWBAR BROKE, REQUIRING REPLACEMENT AND MAINT INSPECTION. RAMP DISPATCH CTLR INITIALLY HELD FLT, BUT I TOLD HIM OF POSSIBLE CREW DAY VIOLATION. THEY CALLED BACK SHORTLY WITH START CLRNC. AFTER TOWBAR BROKE, I CONTACTED FLT CTL AND TOLD OF CREW TIME. THEY SAID SINCE WE PUSHED ALREADY, CONTINUE. FLT DEPARTED RWY 22L, A LONG TAXI, AND WE WERE #2 FOR TKOF. FLT DEPARTED 3 HRS 15 MINS LATE. EXPERIENCED 4 MIN DELAY INFLT/ENRTE. UPON ARR, APCH CTL SLOWED AND VECTORED US EARLY. RWY 7R WAS USED. PLANNED FOR RWY 25L (SHORTER FLT). APCH ALSO VECTORED US FOR A DECLARED EMER BY OAK VORTAC. TOTAL DUTY DAY OF 16 HRS 6 MINS.

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.