CHI02LA095

NTSB accident investigation · Schweizer G-164A · Cascade, IA · March 20, 2002

Accident · Serious injuriesLimited investigationFinal report
Date
March 20, 2002, 12:30 local (18:30 UTC)
Place
Cascade, IA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9763Schweizer G-164A
Weather
Visual (VMC) · Day
Status
Completed · report August 28, 2002
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20020320007749A
Case key
54385

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 inadequate preflight planning/preparation and his failure to maintain clearance with the wire. A factor associated with the accident was the wire that the airplane contacted.

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,staticFactor
Preflight planning/preparation - inadequatePilot in commandCause
Clearance - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The airplane contacted a wire and collided with the terrain during an aerial application flight. The purpose of the flight was to drop seed along a section of highway that had recently been under construction. The airplane had taken off from the highway and was heading east to drop seed when the accident occurred. There were two sets of wires which crossed over the highway. Both sets of wires were perpendicular to the highway. The first set was approximately 40 feet above the ground and the second set was approximately 30 feet above the ground. The airplane traveled under the first wire. As the airplane was traveling under the second wire, the leading edge of the top left wing contacted the wire. The airplane then descended and impacted the terrain on the highway median.

Factual narrative

On March 20, 2002, at 1230 central standard time, a Schweizer G-164A, N9763, operated by Todd's Flying Service, Inc., collided with wires and the terrain during an aerial application flight along highway 151 just west of Cascade, Iowa. The commercial pilot received serious injuries. The airplane was substantially damage. The CFR 14 Part 137 aerial application flight was operating in visual meteorological conditions without a flight plan. The local flight originated in Cascade, Iowa, about 1225.

The purpose of the flight was to drop seed along a section of Highway 151 that had recently been under construction. The airplane had taken off from the highway and was heading east to drop seed when the accident occurred. There were two sets of wires which crossed over the highway. Both sets of wires were perpendicular to the highway. The first set was approximately 40 feet above the ground, and the second set was approximately 30 feet above the ground. The airplane traveled under the first wire. As the airplane was traveling under the second wire, the leading edge of the top left wing contacted the wire. The airplane then descended and impacted the terrain on the highway median.

Aircraft

Registration
N9763
Reported as
Schweizer G-164A
Category
Airplane
Serial number
1251
Airframe hours
6,041
Engine
Pratt & Whitney R-1340-AN1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Todds Flying Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 11, 2002 · 25 hours before
Departed
Cascade, 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
41
Injuries
Serious
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
May 18, 2000
Seat
Center
Flight hours
12,960 total · 5,500 in this make and model · 30 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 1 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
46 °F, dew point 32 °F
Altimeter
30.19 inHg
Observed at
MXO, 5 nm away

Docket · 1

The files NTSB released with the investigation on August 9, 2002, on NTSB’s docket system: statements, records, photos and specialists’ reports. 271 KB in all.

FAA reports on this event · 1

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