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Instructor with instrument student flying a C172 on a simulated no gyro approach instructs the student to use one half standard rate turns. When controller queries their turn rate he realizes he should have been using standard rate turns.
| Attributes | |
| ACN | 399630 |
| Time | |
| Date | 199804 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lex |
| State Reference | KY |
| Altitude | msl bound lower : 2500 msl bound upper : 2500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : lex |
| Operator | general aviation : instructional |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | pilot : cfi pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 60 flight time total : 3100 flight time type : 500 |
| ASRS Report | 399630 |
| Person 2 | |
| Affiliation | Other |
| Qualification | pilot : private |
| Events | |
| Anomaly | non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While giving emergency procedures training (VFR flight into IMC -- simulated), I instructed the student pilot, during a no- gyros approach, to use 1/2 standard rate turns. In fact, we should have been using standard rate turns until instructed by the controller on final to use 1/2 standard rate. There was no traffic conflict, only confusion by the controller as to why we weren't turning enough. When queried by the controller, we did tell him we were making 1/2 standard rate. He advised us to use full standard rate and from that point on we did. As far as why I told the student to use 1/2 standard rate, I guess lack of currency on the maneuver. I should have reacquainted myself with the procedure before attempting to instruct it. I don't know why, but 1/2 standard rate stuck in my head on this procedure.
Original NASA ASRS Text
Title: INSTRUCTOR WITH INST STUDENT FLYING A C172 ON A SIMULATED NO GYRO APCH INSTRUCTS THE STUDENT TO USE ONE HALF STANDARD RATE TURNS. WHEN CTLR QUERIES THEIR TURN RATE HE REALIZES HE SHOULD HAVE BEEN USING STANDARD RATE TURNS.
Narrative: WHILE GIVING EMER PROCS TRAINING (VFR FLT INTO IMC -- SIMULATED), I INSTRUCTED THE STUDENT PLT, DURING A NO- GYROS APCH, TO USE 1/2 STANDARD RATE TURNS. IN FACT, WE SHOULD HAVE BEEN USING STANDARD RATE TURNS UNTIL INSTRUCTED BY THE CTLR ON FINAL TO USE 1/2 STANDARD RATE. THERE WAS NO TFC CONFLICT, ONLY CONFUSION BY THE CTLR AS TO WHY WE WEREN'T TURNING ENOUGH. WHEN QUERIED BY THE CTLR, WE DID TELL HIM WE WERE MAKING 1/2 STANDARD RATE. HE ADVISED US TO USE FULL STANDARD RATE AND FROM THAT POINT ON WE DID. AS FAR AS WHY I TOLD THE STUDENT TO USE 1/2 STANDARD RATE, I GUESS LACK OF CURRENCY ON THE MANEUVER. I SHOULD HAVE REACQUAINTED MYSELF WITH THE PROC BEFORE ATTEMPTING TO INSTRUCT IT. I DON'T KNOW WHY, BUT 1/2 STANDARD RATE STUCK IN MY HEAD ON THIS PROC.
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.