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C150 instrument student inadvertently dialed in the wrong VOR approach course radial resulting in descending to the MDA 4 mi too soon. The instructor and student, who were always in VMC noticed their error.
| Attributes | |
| ACN | 542714 |
| Time | |
| Date | 200203 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| State Reference | CT |
| Altitude | msl bound lower : 500 msl bound upper : 1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc tower : bdr.tower |
| Operator | general aviation : instructional |
| Make Model Name | Cessna 152 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument non precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot instruction : instructor oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 175 flight time total : 9600 flight time type : 2300 |
| ASRS Report | 542714 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot instruction : trainee |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : vor radial ind other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I flew with an instrument student from isp to do practice approachs at bdr. The WX was cavu. The 3 previous flts with this student were in actual IFR conditions including low IFR conditions which were productive, uneventful flts. Back to our nice cavu day mar/fri/02. New york approach was kind enough to give us a practice VOR-24 approach at bdr. (We were on an IFR flight plan.) the first approach was a vectored approach to the published missed approach. I requested the next approach on our own navigation. We were cleared to milum intersection, which is the FAF for the VOR-24 approach. After crossing milum intersection, we reported procedure turn outbound and were cleared for the approach, 'maintain 1800 ft till established inbound.' milum intersection is comprised of the 234 degree radial inbound course to the VOR and the cmk 100 degree radial. The student dialed in 110 degrees and I didn't catch it. We turned inbound and after getting established and erroneously thinking we were at milum, we started our descent to 500 ft -- 4 mi too soon! ATC apparently didn't notice nor bdr tower, as no one said anything. What happened? I was lulled to complacency because of the great WX conditions doing all this in good VFR and totally dropped my guard and did not catch the student's mistake. Shame on me!
Original NASA ASRS Text
Title: C150 INST STUDENT INADVERTENTLY DIALED IN THE WRONG VOR APCH COURSE RADIAL RESULTING IN DSNDING TO THE MDA 4 MI TOO SOON. THE INSTRUCTOR AND STUDENT, WHO WERE ALWAYS IN VMC NOTICED THEIR ERROR.
Narrative: I FLEW WITH AN INST STUDENT FROM ISP TO DO PRACTICE APCHS AT BDR. THE WX WAS CAVU. THE 3 PREVIOUS FLTS WITH THIS STUDENT WERE IN ACTUAL IFR CONDITIONS INCLUDING LOW IFR CONDITIONS WHICH WERE PRODUCTIVE, UNEVENTFUL FLTS. BACK TO OUR NICE CAVU DAY MAR/FRI/02. NEW YORK APCH WAS KIND ENOUGH TO GIVE US A PRACTICE VOR-24 APCH AT BDR. (WE WERE ON AN IFR FLT PLAN.) THE FIRST APCH WAS A VECTORED APCH TO THE PUBLISHED MISSED APCH. I REQUESTED THE NEXT APCH ON OUR OWN NAV. WE WERE CLRED TO MILUM INTXN, WHICH IS THE FAF FOR THE VOR-24 APCH. AFTER XING MILUM INTXN, WE RPTED PROC TURN OUTBOUND AND WERE CLRED FOR THE APCH, 'MAINTAIN 1800 FT TILL ESTABLISHED INBOUND.' MILUM INTXN IS COMPRISED OF THE 234 DEG RADIAL INBOUND COURSE TO THE VOR AND THE CMK 100 DEG RADIAL. THE STUDENT DIALED IN 110 DEGS AND I DIDN'T CATCH IT. WE TURNED INBOUND AND AFTER GETTING ESTABLISHED AND ERRONEOUSLY THINKING WE WERE AT MILUM, WE STARTED OUR DSCNT TO 500 FT -- 4 MI TOO SOON! ATC APPARENTLY DIDN'T NOTICE NOR BDR TWR, AS NO ONE SAID ANYTHING. WHAT HAPPENED? I WAS LULLED TO COMPLACENCY BECAUSE OF THE GREAT WX CONDITIONS DOING ALL THIS IN GOOD VFR AND TOTALLY DROPPED MY GUARD AND DID NOT CATCH THE STUDENT'S MISTAKE. SHAME ON ME!
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.