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An F90 pilot reported picking up ice suddenly, which adhered to his communication antenna, causing a communication outage during the circle-to-land on runway 32 at dtn.
| Attributes | |
| ACN | 573857 |
| Time | |
| Date | 200302 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dtn.airport |
| State Reference | LA |
| Altitude | msl single value : 1000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Fog Ice Rain |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : dtn.tower tower : sfo.tower |
| Operator | general aviation : personal |
| Make Model Name | Beech F90 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : holding descent : approach |
| Route In Use | approach : circling approach : traffic pattern |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 100 |
| ASRS Report | 573857 |
| Person 2 | |
| Affiliation | other |
| Function | controller : local |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : weather inflight encounter other non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took precautionary avoidance action flight crew : overcame equipment problem flight crew : exited adverse environment |
| Consequence | faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
Cleared for localizer 14, circle west to land on runway 32. IMC, icing conditions. Picked up moderate rime ice and could not talk with tower or approach. Got field in sight. Made calls in blind. Circled in wrong direction. Went east, due to icing on windshield, and poor visibility to west. After landing, contacted tower to tell why couldn't talk, due to ice buildup on antenna. They heard me, but I could not hear them. Tower said it was no problem, because I kept my circle in tight.
Original NASA ASRS Text
Title: AN F90 PLT RPTED PICKING UP ICE SUDDENLY, WHICH ADHERED TO HIS COM ANTENNA, CAUSING A COM OUTAGE DURING THE CIRCLE-TO-LAND ON RWY 32 AT DTN.
Narrative: CLRED FOR LOC 14, CIRCLE W TO LAND ON RWY 32. IMC, ICING CONDITIONS. PICKED UP MODERATE RIME ICE AND COULD NOT TALK WITH TWR OR APCH. GOT FIELD IN SIGHT. MADE CALLS IN BLIND. CIRCLED IN WRONG DIRECTION. WENT E, DUE TO ICING ON WINDSHIELD, AND POOR VISIBILITY TO W. AFTER LNDG, CONTACTED TWR TO TELL WHY COULDN'T TALK, DUE TO ICE BUILDUP ON ANTENNA. THEY HEARD ME, BUT I COULD NOT HEAR THEM. TWR SAID IT WAS NO PROB, BECAUSE I KEPT MY CIRCLE IN TIGHT.
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.