Narrative:

Crossing dotty intersection, we were cleared NA148 to miami. We then proceeded direct topps intersection. Approximately 150 mi past dotty, gander center questioned our routing, indicating his understanding was that NA148 was dotty to tusky. Upon closer evaluation, we realized that our latest commercial chart revision was not effective until many days later. It appears that there is ample room for error when revisions are published with different effective dates, especially when distributed in advance of future revisions. One could easily revise their manual prematurely, such as in our case, or lose the leftover pages of a revision effective on a later date. The fact that the captain, the first officer and I all fell into the trap is testimony to this.

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Original NASA ASRS Text

Title: ACR FLT CREW ON NA148 EXPERIENCES TRACK DEVIATION BY USE OF NAVIGATION CHARTS THAT WERE NOT YET EFFECTIVE.

Narrative: XING DOTTY INTXN, WE WERE CLRED NA148 TO MIAMI. WE THEN PROCEEDED DIRECT TOPPS INTXN. APPROX 150 MI PAST DOTTY, GANDER CENTER QUESTIONED OUR RTING, INDICATING HIS UNDERSTANDING WAS THAT NA148 WAS DOTTY TO TUSKY. UPON CLOSER EVALUATION, WE REALIZED THAT OUR LATEST COMMERCIAL CHART REVISION WAS NOT EFFECTIVE UNTIL MANY DAYS LATER. IT APPEARS THAT THERE IS AMPLE ROOM FOR ERROR WHEN REVISIONS ARE PUBLISHED WITH DIFFERENT EFFECTIVE DATES, ESPECIALLY WHEN DISTRIBUTED IN ADVANCE OF FUTURE REVISIONS. ONE COULD EASILY REVISE THEIR MANUAL PREMATURELY, SUCH AS IN OUR CASE, OR LOSE THE LEFTOVER PAGES OF A REVISION EFFECTIVE ON A LATER DATE. THE FACT THAT THE CAPT, THE F/O AND I ALL FELL INTO THE TRAP IS TESTIMONY TO THIS.

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.