CHI94LA106

NTSB accident investigation · Grumman G-164A · Sublette, KS · March 15, 1994

Accident · No injuriesLimited investigationFinal report
Date
March 14, 1994, 18:30 local (Mar 15, 1994, 00:30 UTC)
Place
Sublette, KS
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9686Grumman G-164A
Weather
Visual (VMC) · Day
Status
Completed · report November 14, 1994
Report
Approved by Office Director
FAA report
19940314015349A
Case key
9484

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

the commercial pilot's failure to maintain clearance from terrain. Related factors are sun glare and rising terrain.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with terrain/waterManeuvering - aerial application
Clearance - not maintainedPilot in commandCause
Terrain condition - risingFactor
Light condition - sunglareFactor

Analysis

The pilot stated he was involved in aerial application of herbicide. He reported he was making a spray run on a westerly heading with the sun in his eyes and the airplane impacted rising terrain. The pilot stated the terrain rose sharply and he did not notice the increase in terrain elevation.

Factual narrative

On March 14, 1994, at 1830 central standard time, a Grumman G164A, N9686, operated by Max Birney Aerial Spraying, Inc. impacted rising terrain during an aerial application swath run in the vicinity of Sublette, Kansas. The pilot, the sole occupant, reported no injuries. Visual meteorological conditions prevailed for the local flight, no flight plan was filed. The flight operated under 14 CFR Part 137, and originated from a private airstrip in Sublette, Kansas approximately 1815.

The pilot reported he was flying on a westerly heading during an herbicide application spray run. He stated the sun was in his eyes "...setting on the horizon..." and he did not observe an increase in terrain elevation. The pilot reported the landing gear struck the terrain and the airplane "...flipped...end over end...coming to stop right side up." The pilot's safety recommendation was to fly higher during spray runs.

Aircraft

Registration
N9686
Reported as
Grumman G-164A
Category
Airplane
Serial number
1211
Engine
P&W R-1340 AN-1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Max Birney Aerial Spraying
Registered owner
Max Birney Aerial Spraying
Airworthiness certificate
Special, Restricted (Special)

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
6,300 total · 250 in this make and model · 6,300 as pilot in command · 3 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
20 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 28 °F
Altimeter
29.00 inHg
Observed at
GCK, 22 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.