Date:	Sunday 12 July 2020
Time:	11:10 LT
Type:	Ayres S-2R-T Turbo Thrush
Owner/operator:	Wayson Air
Registration:	N3104S
MSN:	R1340-025
Year of manufacture:	1990
Engine model:	Garrett TPE331-6
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Lee County, Keokuk, IA -   United States of America
Phase:	Landing
Nature:	Ferry/positioning
Departure airport:	Hayti, MO (M28)
Destination airport:	Vinton Veterans Memorial Airpark, IA (KVTI)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The agricultural airplane was on final approach to a planned fuel stop during the cross-country flight when the accident occurred. About 3-4 miles from the airport, the engine temperature surged then decreased. The engine stopped running and the pilot decided to land in a field, resulting in substantial damage to the right wing.
Examination of the airplane revealed a kinked rubber fuel vent line in the right wing. The line was creased across a structural beam, which restricted the air flow to the fuel tank. Just before the accident flight, the airplane was at a maintenance facility for repairs. During the repairs, the wings had been removed and replaced. The right wing's fuel vent line was not installed properly. This most likely resulted in an air blockage and drop in fuel pressure as the fuel quantity was reduced during the 2.5-hour flight, resulting in the loss of engine power.

Probable Cause: The improper installation of a fuel vent line during maintenance, which resulted in fuel starvation and a total loss of engine power.

NTSB CEN20LA276
https://flightaware.com/live/flight/N3104S/history/20200712/1351Z/M28/95IS/tracklog
https://flightaware.com/live/flight/N3104S
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N3104S

Other occurrences involving this aircraft


11 June 2004

N3104S

Private

0

Eagle Lake Airport (ELA) near Eagle Lake, Texas

sub

@ChrisDuerr @TonyCornishJr @SportsCenter plane with emergency landing at elks golf course during middle of city tournament pic.twitter.com/wuFDdSR8v0

— Scrappy9 (@kgfly10) July 12, 2020

Keokuk Police and Fire crews are at the Elks Lodge Fairview Golf Club where a single engine crop duster landed on Hole 4 after experiencing engine trouble. The pilot, whose name has not been released by KPD, was unharmed and no players were injured. pic.twitter.com/4ry8nr41gk

— Pen City Current (@pencitycurrent) July 12, 2020

Date/time	Contributor	Updates
12-Jul-2020 18:56	harro	Added
12-Jul-2020 20:30	RobertMB	Updated [Aircraft type, Cn, Phase, Embed code, Damage, Narrative, ]
13-Jul-2020 17:01	Geno	Updated [Location, Nature, Destination airport, Source, Narrative, ]
14-Jul-2020 14:23	Captain Adam	Updated [Damage, Narrative, ]
02-Sep-2020 13:53	ASN Update Bot	Updated [Time, Operator, Departure airport, Destination airport, Source, Embed code, Narrative, ]
15-Jul-2022 11:03	ASN Update Bot	Updated [Time, Other fatalities, Destination airport, Source, Embed code, Narrative, Category, Accident report, ]