CHI01LA300

NTSB accident investigation · Grumman-Schweizer G-164B · Atlantic, IA · September 3, 2001

Accident · No injuriesLimited investigationFinal report
Date
September 3, 2001, 09:30 local (14:30 UTC)
Place
Atlantic, IA
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N6598KGrumman-Schweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report June 4, 2002
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20010903024479A
Case key
53404

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 loss of engine power for undetermined reasons during the takeoff and initial climb, and the unsuitable terrain encountered during the forced landing. Factors relating to this accident were the corn crop and the low altitude.

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 powerTakeoff - initial climb
Reason for occurrence undeterminedCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterEmergency descent/landing
Unsuitable terrain or takeoff/landing/taxi area - encounteredCause
Terrain condition - cropFactor
Altitude - lowFactor

Analysis

The pilot said he took off from runway 12 (3,911 feet by 75 feet, dry asphalt) at Atlantic, Iowa, and proceeded south. The pilot said during the takeoff, the airplane's engine attained 2,100 rpm and 34 inches of manifold pressure. The pilot said when the airplane lifted off, his manifold pressure was 30 inches. The pilot said it went down to 28 inches. The pilot said he elected to land in a corn field. He was unable to clear trees that were ahead of him. The pilot said that after the airplane stopped he noticed a fire coming from the left side of the airplane at the cowling. The pilot said he got out of the airplane and walked away. Then a fireball occurred. An examination of the airplane revealed no anomalies.

Factual narrative

On September 3, 2001, at 0930 central daylight time, a Grumman-Schweizer G-164B, N6598K, piloted by a commercial pilot, was destroyed when it impacted into a corn field 1/2 mile south of the Atlantic Municipal Airport, Atlantic, Iowa, and subsequently exploded. A post crash fire ensued. The pilot reported that prior to the accident the airplane's engine lost power immediately after takeoff. Visual meteorological conditions prevailed at the time of the accident. The aerial application flight was being conducted under the provisions of 14 CFR Part 137 without a flight plan. The pilot, who exited the airplane prior to the explosion, reported no injuries. The local flight was originating at the time of the accident.

In his written statement, the pilot said he took off from runway 12 (3,911 feet by 75 feet, dry asphalt). He said during the takeoff, the airplane's engine attained 2,100 rpm and 34 inches of manifold pressure. The pilot said when the airplane lifted off, his manifold pressure was 30 inches. The pilot said it went down to 28 inches. The pilot said he elected to land in a corn field. He was unable to clear trees that were ahead of him.

In his statement to a Federal Aviation Administration (FAA) inspector, the pilot said he hit level into the corn field. The pilot said that after the airplane stopped he noticed a fire coming from the left side of the airplane at the cowling. The pilot said he got out of the airplane and walked away. Then a fireball occurred.

A FAA inspector examined the airplane at the accident site. The airplane was preceded by 75 feet of damaged corn stalks. The corn stalks were approximately 8 feet tall. The airplane, with exception of the left and right wing tips, the engine, and the propeller, was charred, melted, and consumed by fire. The engine was charred and several accessory components were melted. The propeller was charred. One of the three propeller blades was bent aft. Flight control continuity was confirmed. An examination of the engine and remaining airplane components showed no anomalies.

Aircraft

Registration
N6598K
Reported as
Grumman-Schweizer G-164B
Category
Airplane
Serial number
318
Airframe hours
7,534
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Registered owner
R. E. Pettis
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · May 2, 2001
Departed
AIO · Atlantic, IA
Destination
AIO
Airport
AIO · Atlantic Municipal Airport, runway 12, 3,911 × 75 ft, asphalt

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
62
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2
Last flight review
April 12, 2000
Seat
Center
Flight hours
7,000 total · 650 in this make and model · 120 in the last 90 days · 40 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 68 °F
Altimeter
29.94 inHg
Observed at
AIO, 1 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.