Narrative:

On the morning of dec/tue/97, during a routine preflight inspection, I checked the maintenance summary sheet in the aircraft to see if any items would come due during our 6 day tour of duty. I noted that the next inspection was due at 1926.6 hours and that the current aircraft time was recorded as 1826.6. The maintenance summary was dated dec/xx/97, leading me to believe that 100 hours remained before the next inspection. The flight was delayed approximately 3 hours due to frost on the aircraft so that by the time we actually got into the cockpit, where the hobbs meter is located, the specific numbers had been forgotten, leaving only the belief that 100 hours remained before inspection, much more than I could reasonably expect to fly in a 6 day period. Because the beginning of our tour occurred during a weekend, no one was in the office to review the flight times when they were faxed in, as company policy calls for. In addition, we did not fly on monday so therefore did not facsimile our times in, as they had not changed, this further limited the chance that someone in the office would catch the error. Tuesday, we had a problem with the APU and called the director of maintenance for an MEL deferral. Per company policy the aircraft time at the time of occurrence was reported, the MEL paperwork was completed and we departed on a repositioning flight. As we taxied in at the destination, I received an urgent page to call the director of maintenance. At this point we were informed that the inspection interval had been exceeded.

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Original NASA ASRS Text

Title: AN ATX FIXED WING LTT WAS OPERATED AND EXCEEDED THE ROUTINE 100 HR INSPECTION PERIOD.

Narrative: ON THE MORNING OF DEC/TUE/97, DURING A ROUTINE PREFLT INSPECTION, I CHKED THE MAINT SUMMARY SHEET IN THE ACFT TO SEE IF ANY ITEMS WOULD COME DUE DURING OUR 6 DAY TOUR OF DUTY. I NOTED THAT THE NEXT INSPECTION WAS DUE AT 1926.6 HRS AND THAT THE CURRENT ACFT TIME WAS RECORDED AS 1826.6. THE MAINT SUMMARY WAS DATED DEC/XX/97, LEADING ME TO BELIEVE THAT 100 HRS REMAINED BEFORE THE NEXT INSPECTION. THE FLT WAS DELAYED APPROX 3 HRS DUE TO FROST ON THE ACFT SO THAT BY THE TIME WE ACTUALLY GOT INTO THE COCKPIT, WHERE THE HOBBS METER IS LOCATED, THE SPECIFIC NUMBERS HAD BEEN FORGOTTEN, LEAVING ONLY THE BELIEF THAT 100 HRS REMAINED BEFORE INSPECTION, MUCH MORE THAN I COULD REASONABLY EXPECT TO FLY IN A 6 DAY PERIOD. BECAUSE THE BEGINNING OF OUR TOUR OCCURRED DURING A WEEKEND, NO ONE WAS IN THE OFFICE TO REVIEW THE FLT TIMES WHEN THEY WERE FAXED IN, AS COMPANY POLICY CALLS FOR. IN ADDITION, WE DID NOT FLY ON MONDAY SO THEREFORE DID NOT FAX OUR TIMES IN, AS THEY HAD NOT CHANGED, THIS FURTHER LIMITED THE CHANCE THAT SOMEONE IN THE OFFICE WOULD CATCH THE ERROR. TUESDAY, WE HAD A PROB WITH THE APU AND CALLED THE DIRECTOR OF MAINT FOR AN MEL DEFERRAL. PER COMPANY POLICY THE ACFT TIME AT THE TIME OF OCCURRENCE WAS RPTED, THE MEL PAPERWORK WAS COMPLETED AND WE DEPARTED ON A REPOSITIONING FLT. AS WE TAXIED IN AT THE DEST, I RECEIVED AN URGENT PAGE TO CALL THE DIRECTOR OF MAINT. AT THIS POINT WE WERE INFORMED THAT THE INSPECTION INTERVAL HAD BEEN EXCEEDED.

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.