Air carrier flight crew on NA148 experiences track deviation by use of navigation charts that were n...

Attributes
ACN	179484
Time
Date	199105
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : cyzx
State Reference	NF
Altitude	msl bound lower : 39000 msl bound upper : 39000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute : atlantic enroute : other oceanic enroute airway : na148 enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 5000 flight time type : 800
ASRS Report	179484
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

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.

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.

Air carrier flight crew on NA148 experiences track deviation by use of navigation charts that were not yet effective.