ATL85LKG09

NTSB accident investigation · Grumman G-164 · Opp, AL · September 5, 1985

Accident · No injuriesFinal report
Date
September 5, 1985, 11:00 local (16:00 UTC)
Place
Opp, AL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N598YGrumman G-164
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850905043419A
Case key
6884

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

On this page

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.

Loss of engine power(total) - mech failure/malfManeuvering - aerial application
Compressor assembly,impeller - failure,totalCause
Forced landingDescent - emergency
Wrong runwayFactor
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - high vegetationFactor
Nose overLanding - roll

Analysis

The plt reported that during a pull-up and turnaround at the end of a swath run, the eng gave off smoke and lost pwr. The plt dumped the chemical load and performed a forced landing in a fld which contained 6 to 8 ft tall vegetation. The acft travelled aprx 100 ft then nosed over. Inspection of the eng revealed the impeller bearing failed, allowing the impeller to contact the rear casing.

Aircraft

Registration
N598Y
Reported as
Grumman G-164
Category
Airplane
Serial number
259
Airframe hours
4,235
Engine
P&W R-985-AN-1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Patrick H. Baker
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · June 29, 1985 · 133 hours before
Departed
0J7 · Samson, AL
Destination
OJ7 · Samson, AL

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
40
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
4,000 total · 2,000 in this make and model · 3,940 as pilot in command · 150 in the last 90 days · 50 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
5 statute miles
Lowest ceiling
2,500 ft overcast
Temperature
81 °F, dew point -0 °F

FAA reports on this event · 1

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

Other investigations on N598Y · 1

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