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Flight training crew went below the FAF early due to a misunderstanding of the aeronautical instrument approach chart presentation.
| Attributes | |
| ACN | 334350 |
| Time | |
| Date | 199604 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : abe |
| State Reference | PA |
| Altitude | msl bound lower : 1800 msl bound upper : 2800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : abe |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | pilot : cfi |
| Experience | flight time last 90 days : 25 flight time total : 300 flight time type : 150 |
| ASRS Report | 334350 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : published procedure non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
My student and I were flying the ILS back course to abe. This was the first time I used NOAA plates. Up until now I used commercial. I incorrectly idented the final approach fix and descended 2 or 3 mi early. After the trip I had time to review the flight and found the problem.
Original NASA ASRS Text
Title: FLT TRAINING CREW WENT BELOW THE FAF EARLY DUE TO A MISUNDERSTANDING OF THE AERO INST APCH CHART PRESENTATION.
Narrative: MY STUDENT AND I WERE FLYING THE ILS BACK COURSE TO ABE. THIS WAS THE FIRST TIME I USED NOAA PLATES. UP UNTIL NOW I USED COMMERCIAL. I INCORRECTLY IDENTED THE FINAL APCH FIX AND DSNDED 2 OR 3 MI EARLY. AFTER THE TRIP I HAD TIME TO REVIEW THE FLT AND FOUND THE PROB.
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.