CEN11LA335

NTSB accident investigation · Grumman Acft ENG Cor-Schweizer G-164A · Bono, AR · May 9, 2011

Accident · No injuriesLimited investigationFinal report
Date
May 9, 2011, 09:40 local (14:40 UTC)
Place
Bono, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N8930HGrumman Acft ENG Cor-Schweizer G-164A
Defining event
Takeoff: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report August 30, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA/FSDO
FAA report
20110509007699A
Case key
79091

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

On this page

Probable cause

A loss of engine power for undetermined reasons.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Not determinedNot determined › Not determined · Unknown/Not determinedGrumman Acft ENG Cor-Schweizer G-164A: 8 casesAll aircraft: 2,247 casesProbable cause
AircraftAircraft › Aircraft power plant · FailureGrumman Acft ENG Cor-Schweizer G-164A: 1 caseAll aircraft: 151 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot performed a preflight inspection of the airplane and sumped each fuel tank. Water was found in the tanks, and he sumped them until he no longer observed any water in the fuel. The pilot then started the airplane and conducted an engine check, which was normal. On takeoff, at an altitude of 60 to 100 feet, the engine began to sputter and he was unable to maintain altitude. The pilot landed in trees off the end of the runway and the airplane caught fire. Postaccident examination of the airplane revealed substantial damage to both wings and the post impact fire consumed the engine, cockpit, fuselage, empennage, left wing and the inboard section of the right wing. Due to the extensive fire damage, the source of the engine failure could not be determined.

Factual narrative

On May 9, 2011, at 0940 central daylight time, a Grumman Aircraft Corporation-Schweizer G-164A, was substantially damaged after colliding with trees after a total loss of engine power on take off from a private airstrip in Bono, Arkansas. The commercial pilot was not injured. The airplane was registered to and operated by Heartland Aerial Sprayers, Mission Valley, Iowa. Visual meteorological conditions prevailed for the positioning flight conducted under 14 Code of Federal Regulations Part 91. No flight plan was filed the flight that was destined for Mission Valley, Iowa. According to the pilot, the airplane had been flown the day before the accident and there were no reported problems. On the day of the accident, he performed a preflight examination of the airplane, which included sumping all of the fuel tanks. The pilot said he found some water in the tanks, but sumped them until they drained only aviation fuel. He then started the airplane, performed a normal engine run-up and departed. When the airplane was approximately 60 to 100-feet above the runway, the engine began "spitting and sputtering." The pilot made a forced landing off the end of the runway and collided with trees. After the airplane came to a stop, the pilot noticed a fire starting in the radial engine and was able to quickly egress the airplane. A Federal Aviation Administration inspector performed a post-accident examination of the airplane. He reported that both wings sustained substantial damage and the post impact fire consumed the engine, cockpit, fuselage, empennage, left wing and the inboard section of the right wing. Due to the extensive fire damage, the source of the engine failure could not be determined.

Aircraft

Registration
N8930H
Reported as
Grumman Acft ENG Cor-Schweizer G-164A
Category
Airplane
Serial number
1565
Airframe hours
10,135
Engine
P&W R1340 SERIES, 600 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Positioning · Part 91
Operator
Heartland Aerial Aprayers
Registered owner
Wallin Michael L DBA
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 2, 2011
Departed
Bono, AR
Destination
KUNO · West Plains, MO
Airport
Private

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
23
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
January 29, 2011
Seat
Front
Flight hours
730 total · 41 in this make and model · 705 as pilot in command · 193 in the last 90 days · 35 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 43 °F
Altimeter
29.97 inHg

Docket · 2

The files NTSB released with the investigation on July 1, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 803 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.

Other investigations on N8930H · 1

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