Narrative:

Assigned to hold at fwa. Entered hold and established. We were working on calculating alternates, fuel, and time remaining, when ATC called and said we were 40 mi west of the hold. We were assigned a heading back to fwa and re- entered the hold. Looking back, we discovered we had inadvertently gotten into a heading mode while we were doing our calculations. The only explanation we could come up with for this deviation was that one of us had brushed against the heading knob of the autoplt which then put us into a heading mode. Because we were deeply involved in our fuel calculations, we failed to notice that the aircraft was proceeding out of the hold. We went back to the hold and the flight continued with a normal landing at ord.

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Original NASA ASRS Text

Title: AN F100 EXITS THE BOUNDARIES OF THE PUBLISHED HOLDING PATTERN 40 MI W OF FWA. CTLR GIVES THE CREW A 'WAKE UP' CALL.

Narrative: ASSIGNED TO HOLD AT FWA. ENTERED HOLD AND ESTABLISHED. WE WERE WORKING ON CALCULATING ALTERNATES, FUEL, AND TIME REMAINING, WHEN ATC CALLED AND SAID WE WERE 40 MI W OF THE HOLD. WE WERE ASSIGNED A HDG BACK TO FWA AND RE- ENTERED THE HOLD. LOOKING BACK, WE DISCOVERED WE HAD INADVERTENTLY GOTTEN INTO A HDG MODE WHILE WE WERE DOING OUR CALCULATIONS. THE ONLY EXPLANATION WE COULD COME UP WITH FOR THIS DEV WAS THAT ONE OF US HAD BRUSHED AGAINST THE HDG KNOB OF THE AUTOPLT WHICH THEN PUT US INTO A HDG MODE. BECAUSE WE WERE DEEPLY INVOLVED IN OUR FUEL CALCULATIONS, WE FAILED TO NOTICE THAT THE ACFT WAS PROCEEDING OUT OF THE HOLD. WE WENT BACK TO THE HOLD AND THE FLT CONTINUED WITH A NORMAL LNDG AT ORD.

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.