CHI07CA250

NTSB accident investigation · Grumman G-164A · Vinton, IA · August 5, 2007

Accident · Minor injuriesData collectionFinal report
Date
August 5, 2007, 17:30 local (22:30 UTC)
Place
Vinton, IA
Injuries
1 minor
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N48558Grumman G-164A
Weather
Visual (VMC) · Day
Status
Completed · report October 31, 2007
Report
Approved by Office Director
FAA report
20070805020049A
Case key
66581

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 pilot failed to maintain clearance from the power line while maneuvering during an aerial application flight. A factor was the power line.

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 objectManeuvering - aerial application
Altitude/clearance - not maintainedPilot in commandCause
Object - wire,transmissionFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The airplane struck a power line while maneuvering during an aerial application flight. The pilot reported that he was maneuvering to re-enter the field after a go-around due to a high sink rate on the previous downwind pass. The pilot reported that the landing gear "caught the top wire" of the north/south power line, and then the airplane impacted an east/west power line. The airplane yawed 90-degrees and impacted the ground. The airplane was consumed by fire after the ground impact. The pilot received minor injuries.

Factual narrative

The airplane struck a power line while maneuvering during an aerial application flight. The pilot reported that he was maneuvering to re-enter the field after a go-around due to a high sink rate on the previous downwind pass. The pilot reported that the landing gear "caught the top wire" of the north/south power line, and then the airplane impacted an east/west power line. The airplane yawed 90-degrees and impacted the ground. The airplane was consumed by fire after the ground impact. The pilot received minor injuries.

Aircraft

Registration
N48558
Reported as
Grumman G-164A
Category
Airplane
Serial number
1641
Engine
Pratt & Whitney 1340-AN1, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Aerial observation · Part 137
Registered owner
Kirk Aviation
Airworthiness certificate
Special, Restricted (Special)
Departed
VTI · Vinton, IA

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
53
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2
Flight hours
2,118 total · 234 in this make and model · 357 in the last 90 days · 154 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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