20160802016729A

Accident · Substantial damage

FAA accident report · Air Tractor AT-301 · Weiser, ID · August 2, 2016

Date
August 2, 2016 · 09:30 local
Place
Weiser, ID
Airport
Weiser Municipal Airport
Phase of flight
Cruise/Level Flight
Operating rules
Agricultural (Part 137)
Operator
NRGG
Damage
Substantial damage
Aircraft
N23923
NTSB investigation
NTSBWPR16LA159
Reported as
Air Tractor AT-301
Reported engine
Pratt & Whitney R1340 series
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Airline transport
Pilot’s flight hours
9,800 total100 in this make and model100 in the last 90 days

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.

Pilot reported that after departing Weiser airport (S87) with a load of liquid sulfur, he noted the cylinder head temperature (CHT) was increasing. He attempted to lighten the load by applying the sulfur to the field but noted that the CHT was continuing to increase and engine power was decreasing. The pilot was able to jettision the remaining sulfur and make a forced landing into a field.

During the landing the right wing impacted vegetation which caused the airplane to rotate, followed by the left main landing gear separating from the fuselage.

As the FAA filed it

PILOT REPORTED THAT AFTER DEPARTING WEISER AIRPORT (S87) WITH A LOAD OF LIQUID SULFUR, HE NOTED THE CYLINDER HEAD TEMPERATURE (CHT) WAS INCREASING. HE ATTEMPTED TO LIGHTEN THE LOAD BY APPLYING THE SULFUR TO THE FIELD BUT NOTED THAT THE CHT WAS CONTINUING TO INCREASE AND ENGINE POWER WAS DECREASING. THE PILOT WAS ABLE TO JETTISION THE REMAINING SULFUR AND MAKE A FORCED LANDING INTO A FIELD.

DURING THE LANDING THE RIGHT WING IMPACTED VEGETATION WHICH CAUSED THE AIRPLANE TO ROTATE, FOLLOWED BY THE LEFT MAIN LANDING GEAR SEPARATING FROM THE FUSELAGE.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

Other reports on N23923 · 1

Matched to the same aircraft by N-number and date.