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An M20R pilot lost control of his aircraft, causing an unwanted descent, due to heavy icing, in ZAB airspace.
| Attributes | |
| ACN | 576516 |
| Time | |
| Date | 200303 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zab.artcc |
| State Reference | NM |
| Altitude | msl single value : 17000 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Ice |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | general aviation : personal |
| Make Model Name | M-20 K (231) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zab.artcc |
| Make Model Name | Cessna Citation Undifferentiated or Other Model |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 50 flight time total : 1800 flight time type : 1400 |
| ASRS Report | 576516 |
| Person 2 | |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe inflight encounter other non adherence : clearance non adherence : far non adherence : required legal separation other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control flight crew : took evasive action flight crew : exited adverse environment other |
| Supplementary | |
| Problem Areas | ATC Human Performance Weather Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cruising at 17000 ft in IMC. Began to pick up ice. Called ZAB 3 or 4 times. Did not get a response. Suddenly began to accumulate a large amount of ice on wings and windshield. Began an emergency descent. ZAB then called and said to climb to 17000 ft. I responded that I was unable, because of ice at that altitude. This caused a conflict with a citation jet at 16000 ft, opposite direction, and minimum separation was not maintained.
Original NASA ASRS Text
Title: AN M20R PLT LOST CTL OF HIS ACFT, CAUSING AN UNWANTED DSCNT, DUE TO HVY ICING, IN ZAB AIRSPACE.
Narrative: CRUISING AT 17000 FT IN IMC. BEGAN TO PICK UP ICE. CALLED ZAB 3 OR 4 TIMES. DID NOT GET A RESPONSE. SUDDENLY BEGAN TO ACCUMULATE A LARGE AMOUNT OF ICE ON WINGS AND WINDSHIELD. BEGAN AN EMER DSCNT. ZAB THEN CALLED AND SAID TO CLB TO 17000 FT. I RESPONDED THAT I WAS UNABLE, BECAUSE OF ICE AT THAT ALT. THIS CAUSED A CONFLICT WITH A CITATION JET AT 16000 FT, OPPOSITE DIRECTION, AND MINIMUM SEPARATION WAS NOT MAINTAINED.
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.