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A C172 training flight loses control of altitude and heading when the 2 pilots suffer vertigo during an attempt at partial panel flying near ads, tx.
| Attributes | |
| ACN | 508387 |
| Time | |
| Date | 200104 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ads.airport |
| State Reference | TX |
| Altitude | msl bound lower : 3200 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | general aviation : instructional |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | ils localizer only : 15 |
| Flight Phase | cruise : level |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | instruction : instructor |
| Qualification | pilot : cfi |
| Experience | flight time last 90 days : 100 flight time total : 1700 flight time type : 50 |
| ASRS Report | 508387 |
| Person 2 | |
| Affiliation | other |
| Function | instruction : trainee |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : regained aircraft control |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft Environmental Factor |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We took off from addison airport at XC30 on an IFR flight to redbird airport to practice instrument approachs. After 2 ILS approachs at redbird, we headed back to addison airport. We were being radar vectored for the ILS runway 15 to addison. We were practicing simulated vacuum failure (partial panel). Upon climbing to 4000 ft MSL, we were in IMC. The student was using the magnetic compass to maintain heading. The magnetic compass suddenly swung erratically. The student got disoriented and we entered an unusual attitude. We recovered from the unusual attitude. The controller told us to maintain our assigned heading. We requested to descend to 3000 ft MSL. We completed the ILS runway 15 approach and landed at addison airport.
Original NASA ASRS Text
Title: A C172 TRAINING FLT LOSES CTL OF ALT AND HDG WHEN THE 2 PLTS SUFFER VERTIGO DURING AN ATTEMPT AT PARTIAL PANEL FLYING NEAR ADS, TX.
Narrative: WE TOOK OFF FROM ADDISON ARPT AT XC30 ON AN IFR FLT TO REDBIRD ARPT TO PRACTICE INST APCHS. AFTER 2 ILS APCHS AT REDBIRD, WE HEADED BACK TO ADDISON ARPT. WE WERE BEING RADAR VECTORED FOR THE ILS RWY 15 TO ADDISON. WE WERE PRACTICING SIMULATED VACUUM FAILURE (PARTIAL PANEL). UPON CLBING TO 4000 FT MSL, WE WERE IN IMC. THE STUDENT WAS USING THE MAGNETIC COMPASS TO MAINTAIN HDG. THE MAGNETIC COMPASS SUDDENLY SWUNG ERRATICALLY. THE STUDENT GOT DISORIENTED AND WE ENTERED AN UNUSUAL ATTITUDE. WE RECOVERED FROM THE UNUSUAL ATTITUDE. THE CTLR TOLD US TO MAINTAIN OUR ASSIGNED HDG. WE REQUESTED TO DSND TO 3000 FT MSL. WE COMPLETED THE ILS RWY 15 APCH AND LANDED AT ADDISON ARPT.
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.