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BE35 pilot became disoriented in IMC; resulting in an unusual attitude. This resulted in altitude deviation and failure to intercept localizer.
| Attributes | |
| ACN | 760025 |
| Time | |
| Date | 200710 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : laf.airport |
| State Reference | IN |
| Altitude | msl bound lower : 3000 msl bound upper : 3600 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 39 flight time total : 663 flight time type : 288 |
| ASRS Report | 760025 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude conflict : airborne critical non adherence : clearance other anomaly other anomaly other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control |
| Miss Distance | vertical : 400 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were being vectored to the ILS runway 10 approach when asked to hold. After 1 hold we were vectored inbound to intercept the ILS. ATC told us to fly 100 degrees and intercept ILS. Upon flying 100 degrees I blew right through the ILS. My directional gyro had precessed. I initiated a turn to come back to intercept ILS. Then ZOB told me to contact tower. My radios are down and left so copilot can't help. Upon changing frequencys I realized I was in an unusual attitude. Turning hard left and dropping 2000 FPM; I regained control by pulling up and leveling wings. In the correction I over corrected and gained several hundred ft. I was becoming overwhelmed and reported to the tower and still had a full deflection. I called a missed. I was hesitant to take my attention off of aviating the panel and asked tower to xfer me to chicago to get vectors on the missed as I didn't want to return to an unusual attitude. When I changed frequency to ZOB they were calling for me to descend to 3000 ft. I entered the approach at a little over 3000 ft and increased while making my correction to the unusual attitude and chicago reported traffic at 4000 ft as they told me to descend from 3600 ft to 3000 ft.
Original NASA ASRS Text
Title: BE35 PLT BECAME DISORIENTED IN IMC; RESULTING IN AN UNUSUAL ATTITUDE. THIS RESULTED IN ALT DEVIATION AND FAILURE TO INTERCEPT LOC.
Narrative: WE WERE BEING VECTORED TO THE ILS RWY 10 APCH WHEN ASKED TO HOLD. AFTER 1 HOLD WE WERE VECTORED INBOUND TO INTERCEPT THE ILS. ATC TOLD US TO FLY 100 DEGS AND INTERCEPT ILS. UPON FLYING 100 DEGS I BLEW RIGHT THROUGH THE ILS. MY DIRECTIONAL GYRO HAD PRECESSED. I INITIATED A TURN TO COME BACK TO INTERCEPT ILS. THEN ZOB TOLD ME TO CONTACT TWR. MY RADIOS ARE DOWN AND LEFT SO COPLT CAN'T HELP. UPON CHANGING FREQS I REALIZED I WAS IN AN UNUSUAL ATTITUDE. TURNING HARD L AND DROPPING 2000 FPM; I REGAINED CTL BY PULLING UP AND LEVELING WINGS. IN THE CORRECTION I OVER CORRECTED AND GAINED SEVERAL HUNDRED FT. I WAS BECOMING OVERWHELMED AND REPORTED TO THE TWR AND STILL HAD A FULL DEFLECTION. I CALLED A MISSED. I WAS HESITANT TO TAKE MY ATTN OFF OF AVIATING THE PANEL AND ASKED TWR TO XFER ME TO CHICAGO TO GET VECTORS ON THE MISSED AS I DIDN'T WANT TO RETURN TO AN UNUSUAL ATTITUDE. WHEN I CHANGED FREQ TO ZOB THEY WERE CALLING FOR ME TO DSND TO 3000 FT. I ENTERED THE APCH AT A LITTLE OVER 3000 FT AND INCREASED WHILE MAKING MY CORRECTION TO THE UNUSUAL ATTITUDE AND CHICAGO REPORTED TFC AT 4000 FT AS THEY TOLD ME TO DSND FROM 3600 FT TO 3000 FT.
Data retrieved from NASA's ASRS site as of January 2009 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.