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Small transport requested to keep speed up on approach. Encounters ice, loss of control, altitude deviation.
| Attributes | |
| ACN | 229065 |
| Time | |
| Date | 199212 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdx |
| State Reference | OR |
| Altitude | msl bound lower : 1800 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pdx |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | descent : approach landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 114 flight time total : 668 flight time type : 106 |
| ASRS Report | 229065 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : clearance other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was going to portland because of low fuel. Portland approach was vectoring me for the ILS 28R approach. They needed me at 170 KTS to the marker. I said ok. As I got to the marker I had picked up large amount of ice. I was on autoplt at this time. Went to turn off autoplt and plane was very heavy to control. Caught me off guard. Was trying to slow down to get gear and flaps down. But lost heading and altitude was descending fast. Though scan saw problem, got in to fast ascent. 3000 ft was last assigned. Went from about 1800-2000 ft back up to 4000 ft. When was in descent mode so went back down and up. First, I should not have taken the 170 KTS to marker. I couldn't get it slowed down. I had come out of tucson, az, and had a long day to that point and when I saw what had happened I did all I could to get plane straight and level. But this was the most ice I had flown in. Was not good judgement to try and do total flight in 1 day due to winds and WX.
Original NASA ASRS Text
Title: SMT REQUESTED TO KEEP SPD UP ON APCH. ENCOUNTERS ICE, LOSS OF CTL, ALTDEV.
Narrative: I WAS GOING TO PORTLAND BECAUSE OF LOW FUEL. PORTLAND APCH WAS VECTORING ME FOR THE ILS 28R APCH. THEY NEEDED ME AT 170 KTS TO THE MARKER. I SAID OK. AS I GOT TO THE MARKER I HAD PICKED UP LARGE AMOUNT OF ICE. I WAS ON AUTOPLT AT THIS TIME. WENT TO TURN OFF AUTOPLT AND PLANE WAS VERY HVY TO CTL. CAUGHT ME OFF GUARD. WAS TRYING TO SLOW DOWN TO GET GEAR AND FLAPS DOWN. BUT LOST HDG AND ALT WAS DSNDING FAST. THOUGH SCAN SAW PROB, GOT IN TO FAST ASCENT. 3000 FT WAS LAST ASSIGNED. WENT FROM ABOUT 1800-2000 FT BACK UP TO 4000 FT. WHEN WAS IN DSCNT MODE SO WENT BACK DOWN AND UP. FIRST, I SHOULD NOT HAVE TAKEN THE 170 KTS TO MARKER. I COULDN'T GET IT SLOWED DOWN. I HAD COME OUT OF TUCSON, AZ, AND HAD A LONG DAY TO THAT POINT AND WHEN I SAW WHAT HAD HAPPENED I DID ALL I COULD TO GET PLANE STRAIGHT AND LEVEL. BUT THIS WAS THE MOST ICE I HAD FLOWN IN. WAS NOT GOOD JUDGEMENT TO TRY AND DO TOTAL FLT IN 1 DAY DUE TO WINDS AND WX.
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.