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First officer of an air carrier questioned the labeling of certain instrument approach charts because they could lead to confusion and or mistakes since two approach charts are labeled with the same GPS-a identifier.
| Attributes | |
| ACN | 335320 |
| Time | |
| Date | 199605 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : 3b4 |
| State Reference | ME |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 335320 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Chart Or Publication |
| Air Traffic Incident | other |
Narrative:
I was recently going over some approach plates when I noticed something about the eliot, maine, approachs. Apparently the VOR and NDB approachs were originally called VOR-a and NDB-a. There have since been added some GPS overlays, and these approachs are now designated NDB or GPS-a and VOR or GPS-a. It seems we now have two completely different GPS-a approachs at this airport. Prime recipe for confusion. A perusal of the northeast-1 tpp volume shows this to be the only case in this volume, but I suspect it may also have happened elsewhere.
Original NASA ASRS Text
Title: FO OF AN ACR QUESTIONED THE LABELING OF CERTAIN INST APCH CHARTS BECAUSE THEY COULD LEAD TO CONFUSION AND OR MISTAKES SINCE TWO APCH CHARTS ARE LABELED WITH THE SAME GPS-A IDENTIFIER.
Narrative: I WAS RECENTLY GOING OVER SOME APCH PLATES WHEN I NOTICED SOMETHING ABOUT THE ELIOT, MAINE, APCHS. APPARENTLY THE VOR AND NDB APCHS WERE ORIGINALLY CALLED VOR-A AND NDB-A. THERE HAVE SINCE BEEN ADDED SOME GPS OVERLAYS, AND THESE APCHS ARE NOW DESIGNATED NDB OR GPS-A AND VOR OR GPS-A. IT SEEMS WE NOW HAVE TWO COMPLETELY DIFFERENT GPS-A APCHS AT THIS ARPT. PRIME RECIPE FOR CONFUSION. A PERUSAL OF THE NE-1 TPP VOLUME SHOWS THIS TO BE THE ONLY CASE IN THIS VOLUME, BUT I SUSPECT IT MAY ALSO HAVE HAPPENED ELSEWHERE.
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.