The National Transportation Safety Board did not travel to the scene of this accident.
Additional Participating Entities:
Federal Aviation Administration / Flight Standards District Office; Des Moines, Iowa (and) Minneapolis, Minnesota
Ayres Thrush
Additional Participating Entities:
Federal Aviation Administration / Flight Standards District Office; Des Moines, Iowa (and) Minneapolis, Minnesota
Ayres Thrush
Wayson Air LLC
Location: Keokuk, IA
Accident Number: CEN20LA276
Date & Time: 07/12/2020, 1110 CDT
Registration: N3104S
Aircraft: Rockwell S2R R1340
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Ferry
On July 12, 2020, about 1110 central daylight time, a Rockwell Thrush S2R, N3104S, was substantially damaged when it was involved in an accident near Keokuk, Iowa. The commercial pilot was not injured. The airplane was being operated as a Title 14 Code of Federal Regulations (CFR) Part 91 ferry flight.
The agricultural airplane had just completed major repairs at a certified repair facility in Hayti, Missouri. Part of the repairs included the removal and reinstallation of both wings. The intent of the flight was to ferry the airplane cross-country from Hayti to its home base in Vinton, Iowa, with a planned fuel stop in Keokuk, Iowa. According to the pilot, he had topped off the airplane with 197 gallons of fuel prior to departure from Hayti. The pilot stated that after an uneventful enroute flight, he was flying about 1,500 -1,800 ft above ground level on a straight-in approach to runway 32 at Keokuk when there was an engine temperature surge and then a decrease. The engine stopped running and the pilot attempted restart procedures. The pilot assessed that he was not going to make it to the airport, which was about 3-4 miles away, and decided to land the airplane in a field. During the landing, the airplane sustained substantial damage. The pilot exited the airplane uninjured and emergency personnel arrived to assist.
Examination of the airplane after the accident revealed that a fuel vent line in the right wing was creased across a structural beam. The creased fuel vent was not consistent with impact damage, and restricted air from entering the fuel tank. Further examination of the vent line revealed that the installation right wing's vent line was not correct and the left wing's vent was installed properly.
Figure 1. Creased Fuel Vent Right Wing
Aircraft and Owner/Operator Information
Aircraft Make: Rockwell
Registration: N3104S
Model/Series: S2R R1340 No Series
Aircraft Category: Airplane
Amateur Built: No
Operator: Wayson Air
Operating Certificate(s) Held: Agricultural Aircraft (137)
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: , 869 ft msl
Observation Time: 1252 CDT
Distance from Accident Site: 50 Nautical Miles
Temperature/Dew Point: 27°C / 17°C
Lowest Cloud Condition: Scattered / 4600 ft agl
Wind Speed/Gusts, Direction: 8 knots / , 360°
Lowest Ceiling: None
Visibility: 10 Miles
Altimeter Setting: 29.93 inches Hg
Type of Flight Plan Filed: None
Departure Point: Hayti, MO (M28)
Destination: Vinton, IA (VTI)
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 40.442778, -91.424167 (est)
Accident Number: CEN20LA276
Date & Time: 07/12/2020, 1110 CDT
Registration: N3104S
Aircraft: Rockwell S2R R1340
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Ferry
On July 12, 2020, about 1110 central daylight time, a Rockwell Thrush S2R, N3104S, was substantially damaged when it was involved in an accident near Keokuk, Iowa. The commercial pilot was not injured. The airplane was being operated as a Title 14 Code of Federal Regulations (CFR) Part 91 ferry flight.
The agricultural airplane had just completed major repairs at a certified repair facility in Hayti, Missouri. Part of the repairs included the removal and reinstallation of both wings. The intent of the flight was to ferry the airplane cross-country from Hayti to its home base in Vinton, Iowa, with a planned fuel stop in Keokuk, Iowa. According to the pilot, he had topped off the airplane with 197 gallons of fuel prior to departure from Hayti. The pilot stated that after an uneventful enroute flight, he was flying about 1,500 -1,800 ft above ground level on a straight-in approach to runway 32 at Keokuk when there was an engine temperature surge and then a decrease. The engine stopped running and the pilot attempted restart procedures. The pilot assessed that he was not going to make it to the airport, which was about 3-4 miles away, and decided to land the airplane in a field. During the landing, the airplane sustained substantial damage. The pilot exited the airplane uninjured and emergency personnel arrived to assist.
Examination of the airplane after the accident revealed that a fuel vent line in the right wing was creased across a structural beam. The creased fuel vent was not consistent with impact damage, and restricted air from entering the fuel tank. Further examination of the vent line revealed that the installation right wing's vent line was not correct and the left wing's vent was installed properly.
Figure 1. Creased Fuel Vent Right WingAircraft Make: Rockwell
Registration: N3104S
Model/Series: S2R R1340 No Series
Aircraft Category: Airplane
Amateur Built: No
Operator: Wayson Air
Operating Certificate(s) Held: Agricultural Aircraft (137)
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: , 869 ft msl
Observation Time: 1252 CDT
Distance from Accident Site: 50 Nautical Miles
Temperature/Dew Point: 27°C / 17°C
Lowest Cloud Condition: Scattered / 4600 ft agl
Wind Speed/Gusts, Direction: 8 knots / , 360°
Lowest Ceiling: None
Visibility: 10 Miles
Altimeter Setting: 29.93 inches Hg
Type of Flight Plan Filed: None
Departure Point: Hayti, MO (M28)
Destination: Vinton, IA (VTI)
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 40.442778, -91.424167 (est)
"Don't mind the crashed aircraft and rescue equipment gentlemen, we'll just play through....nothing to see here...."
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