FTW97LA167

NTSB accident investigation · Grumman-Schweizer G-164A · Hatch, NM · April 28, 1997

Accident · Serious injuriesLimited investigationFinal report
Date
April 28, 1997, 08:45 local (14:45 UTC)
Place
Hatch, NM
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N7696Grumman-Schweizer G-164A
Weather
Visual (VMC) · Day
Status
Completed · report August 25, 1997
Report
Approved by Office Director
FAA report
19970428012129A
Case key
20202

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's failure to maintain clearance from the wires. A factor was the sunglare.

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
Object - wire,transmission
Clearance - not maintainedPilot in commandCause
Light condition - sunglareFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The aerial application pilot was making a swath run, which was made 'facing the sun,' when the airplane struck some wires. Subsequently, the airplane impacted a highway, slid approximately 30 feet, and came to rest in a ditch. The pilot's flagman reported that he had warned the pilot of the wires prior to the accident flight.

Factual narrative

On April 28, 1997, at 0845 mountain daylight time, a Grumman Schweizer G-164A, N7696, registered to and operated by By Ag Air Service, Inc., as a Title 14 CFR Part 137 aerial application flight, was substantially damaged after impacting wires while maneuvering near Hatch, New Mexico. Visual meteorological conditions prevailed, and a flight plan was not filed. The commercial pilot was seriously injured. The flight originated from Hatch Municipal Airport about 5 minutes prior to the accident.

Witnesses reported to the FAA inspector that during a swath run, which was made "facing the sun," the airplane struck some wires. Subsequently, the airplane impacted Highway 185, slid approximately 30 feet, and came to rest in a ditch. The pilot's flagman reported that he had warned the pilot of the wires prior to the accident flight.

Examination of the airplane by the FAA inspector revealed that the top wing and engine were separated from the fuselage, and the bottom wing was damaged.

Aircraft

Registration
N7696
Reported as
Grumman-Schweizer G-164A
Category
Airplane
Serial number
990
Airframe hours
8,380
Engine
P&W R-985-AN1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
By Ag Air Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 11, 1997 · 8 hours before
Departed
E05

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
64
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
7,000 total · 6,100 in this make and model · 7,000 as pilot in command · 12 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
30 statute miles
Lowest ceiling
None
Temperature
68 °F

FAA reports on this event · 1

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