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Pilot of small aircraft on approach to rut encountered rime icing rapid build up, abandoned approach, climbed to on top and diverted to alternate.
| Attributes | |
| ACN | 196148 |
| Time | |
| Date | 199112 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : rut airport : alb |
| State Reference | VT |
| Altitude | msl bound lower : 6000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw tracon : alb tower : gso |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | cruise other descent : approach descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private pilot : commercial |
| Experience | flight time last 90 days : 90 flight time total : 3000 flight time type : 30 |
| ASRS Report | 196148 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | inflight encounter : weather inflight encounter other |
| Independent Detector | other other : unspecified cockpit |
| Resolutory Action | flight crew : exited adverse environment other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
Approaching the ira NDB (initial approach fix, lda rutland, vt) at 7000 ft MSL with an outside air temperature of 10 degrees C, the controller cleared the aircraft to 6000 ft MSL. Upon entering the clouds (approximately 6500 ft MSL) we encountered a sudden drop in the outside air temperature (OAT) to approximately 1-2 degrees C above freezing. Rime ice accumulated rapidly. We immediately advised ATC we were terminating the approach, requested a climb and discussed alternate airports. Since conditions were not changing on the air frame and our inability to maintain altitude or climb, an emergency was declared. Through excellent cooperation of the boston center, albany approach and albany tower, a successful landing was made at albany, ny.
Original NASA ASRS Text
Title: PLT OF SMA ON APCH TO RUT ENCOUNTERED RIME ICING RAPID BUILD UP, ABANDONED APCH, CLBED TO ON TOP AND DIVERTED TO ALTERNATE.
Narrative: APCHING THE IRA NDB (INITIAL APCH FIX, LDA RUTLAND, VT) AT 7000 FT MSL WITH AN OUTSIDE AIR TEMP OF 10 DEGS C, THE CTLR CLRED THE ACFT TO 6000 FT MSL. UPON ENTERING THE CLOUDS (APPROX 6500 FT MSL) WE ENCOUNTERED A SUDDEN DROP IN THE OUTSIDE AIR TEMP (OAT) TO APPROX 1-2 DEGS C ABOVE FREEZING. RIME ICE ACCUMULATED RAPIDLY. WE IMMEDIATELY ADVISED ATC WE WERE TERMINATING THE APCH, REQUESTED A CLB AND DISCUSSED ALTERNATE ARPTS. SINCE CONDITIONS WERE NOT CHANGING ON THE AIR FRAME AND OUR INABILITY TO MAINTAIN ALT OR CLB, AN EMER WAS DECLARED. THROUGH EXCELLENT COOPERATION OF THE BOSTON CENTER, ALBANY APCH AND ALBANY TWR, A SUCCESSFUL LNDG WAS MADE AT ALBANY, NY.
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.