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Light sport aircraft pilot reported a loss of engine power led to an off-field landing; likely caused by carburetor icing.
| Attributes | |
| ACN | 1495829 |
| Time | |
| Date | 201711 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Ultralight |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Flight Plan | None |
| Person 1 | |
| Function | Pilot Flying Single Pilot |
| Qualification | Flight Crew Private Flight Crew Sea |
| Experience | Flight Crew Last 90 Days 20 Flight Crew Total 1140 Flight Crew Type 227 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Carburetor icing. Clear; cold day with visibility unlimited temps were 0 C and dew point -10 C; alt. Set. 3049. Pleasure flight began at ZZZ and meandered toward ZZZ1 at around 2300 ft MSL. Within five miles of ZZZ1; I descended to pattern altitude and I called in my position and intention to land there. A pilot was calling his pattern at ZZZ1 at the time. The ground under me was higher than at ZZZ so my AGL was less than a 1000 ft.all of a sudden my engine ran rough and quickly deteriorated into a shaking roughness even though I applied carburetor heat instantly. I lost altitude and made the decision to land off airport. I shut off the engine; shut off the fuel supply. I called the traffic landing at ZZZ1 and explained my situation and said 'mayday'. I described my plane's color and my approximate location from ZZZ1. The pilot answered and communicated back with me. Then I concentrated on landing safely on a harvested bean field close by. The landing was uneventful; the surface remarkably smooth (better than some grass field airports).I am a lsrm (light sport repairman) so I troubleshot my engine. In the end it became obvious that it was a simple matter of carburetor ice on my rotax 912 south engine. I waited about 20 minutes then restarted the engine. It started back without hesitation and ran smoothly. A thorough run-up verified that all was ok.I took off again and flew to ZZZ1: it was the closest airport. The flight was uneventful; the pattern also. After taxiing and doing one more run-up I was ready to fly back to my home airport. A pilot flying over relayed my information to approach who was concerned because of my 'mayday'. When in the air again; I contacted approach and communicated with them. They asked me to call them on the phone when I landed at my home airport. I flew there directly; remaining in contact with approach. The flight was uneventful and so was the arrival at ZZZ.once on the ground; I called approach on the phone and we debriefed together. They were very helpful and friendly. It seems that everybody around: the pilot I spoke with at the beginning; the FBO at ZZZ1 who picked up a radio and began driving in my general direction then the pilot above and finally the ATC were very professional; helpful and capable. All in all it was an experience without trauma and I am grateful. When it is this cold; in the future I will fly with the carburetor heat at all times.
Original NASA ASRS Text
Title: Light sport aircraft pilot reported a loss of engine power led to an off-field landing; likely caused by carburetor icing.
Narrative: Carburetor icing. Clear; cold day with visibility unlimited temps were 0 C and dew point -10 C; Alt. set. 3049. Pleasure flight began at ZZZ and meandered toward ZZZ1 at around 2300 ft MSL. Within five miles of ZZZ1; I descended to pattern altitude and I called in my position and intention to land there. A pilot was calling his pattern at ZZZ1 at the time. The ground under me was higher than at ZZZ so my AGL was less than a 1000 ft.All of a sudden my engine ran rough and quickly deteriorated into a shaking roughness even though I applied carburetor heat instantly. I lost altitude and made the decision to land off airport. I shut off the engine; shut off the fuel supply. I called the traffic landing at ZZZ1 and explained my situation and said 'mayday'. I described my plane's color and my approximate location from ZZZ1. The pilot answered and communicated back with me. Then I concentrated on landing safely on a harvested bean field close by. The landing was uneventful; the surface remarkably smooth (better than some grass field airports).I am a LSRM (Light Sport Repairman) so I troubleshot my engine. In the end it became obvious that it was a simple matter of carburetor ice on my Rotax 912 S engine. I waited about 20 minutes then restarted the engine. It started back without hesitation and ran smoothly. A thorough run-up verified that all was OK.I took off again and flew to ZZZ1: it was the closest airport. The flight was uneventful; the pattern also. After taxiing and doing one more run-up I was ready to fly back to my home airport. A pilot flying over relayed my information to Approach who was concerned because of my 'mayday'. When in the air again; I contacted Approach and communicated with them. They asked me to call them on the phone when I landed at my home airport. I flew there directly; remaining in contact with Approach. The flight was uneventful and so was the arrival at ZZZ.Once on the ground; I called Approach on the phone and we debriefed together. They were very helpful and friendly. It seems that everybody around: the pilot I spoke with at the beginning; the FBO at ZZZ1 who picked up a radio and began driving in my general direction then the pilot above and finally the ATC were very professional; helpful and capable. All in all it was an experience without trauma and I am grateful. When it is this cold; in the future I will fly with the carburetor heat at all times.
Data retrieved from NASA's ASRS site 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.