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19990724025249I

Incident
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FAA incident report · Wthrly 620A · Oneill, NE · July 24, 1999

FAA Aviation Safety Information Portal

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Date
July 24, 1999 · 18:30 local
Place
Oneill, NE
Airport
Oneill Municipal/John L Baker Fie
Phase of flight
Takeoff Ground Roll
Operating rules
Agricultural (Part 137)
Aircraft
N4647G
Reported as
Wthrly 620A
Reported engine
Pratt & Whitney R985AN14B
People aboard
1
Fatal injuries
0
Pilot’s flight hours
4,500 total1,500 in this make and model200 in the last 90 days
N4647GRegistration cancelled Sep 10, 2022 · Weatherly 620AS/N 1538Airframe modelWeatherly 620AEngine modelPratt & Whitney R-985 seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) Just after takeoff, aircraft experienced a wide power fluctuation and then loss of power. Operator banked the plane right, released the load of chemicals, and made an emergency landing in an alfalfa field. Aircraft came to rest with no damage to the pilot or the aircraft. Upon inspection, it was noted that the left magneto had become dislodged due to vibration and the centering pin becoming elongated. The mechanic initiated an m or d report for the finding.

As the FAA filed it

(-23) JUST AFTER TAKEOFF, AIRCRAFT EXPERIENCED A WIDE POWER FLUCTUATION AND THEN LOSS OF POWER. OPERATOR BANKED THE PLANE RIGHT, RELEASED THE LOAD OF CHEMICALS, AND MADE AN EMERGENCY LANDING IN AN ALFALFA FIELD. AIRCRAFT CAME TO REST WITH NO DAMAGE TO THE PILOT OR THE AIRCRAFT. UPON INSPECTION, IT WAS NOTED THAT THE LEFT MAGNETO HAD BECOME DISLODGED DUE TO VIBRATION AND THE CENTERING PIN BECOMING ELONGATED. THE MECHANIC INITIATED AN M OR D REPORT FOR THE FINDING.