DFW05CA212

NTSB accident investigation · Grumman G164B · Alexandria, LA · August 16, 2005

Accident · No injuriesData collectionFinal report
Date
August 16, 2005, 12:30 local (17:30 UTC)
Place
Alexandria, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N6903KGrumman G164B
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2006
Report
Approved by Office Director
Parties
Baton Rouge, Louisiana
FAA report
20050816018319A
Case key
62252

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 adequate airspeed which resulted in a stall. A contributing factor was the high density 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 control - in flightTakeoff - initial climb
Airspeed - inadequatePilot in commandCause
Stall - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The commercial pilot reported that prior to departure from Runway 33, he loaded 250 gallons of insecticide into the airplane's hopper. The airplane traveled approximately 1,875 feet of the 2,500-foot long grass strip before the pilot rotated for take off. Following rotation, the airplane "seemed to have difficulty gaining airspeed." Subsequently the airplane stalled. When the airplane stalled it turned 90 degrees to the right and impacted terrain. The Density Altitude was calculated to be 1,970 feet.

Factual narrative

On August 16, 2005, approximately 1230 central daylight time, a tail-wheel equipped Grumman G-164B single-engine agricultural airplane, N6903K, was substantially damaged following a loss of control during take off initial climb from a private airstrip near Alexandria, Louisiana. The commercial pilot, sole occupant of the airplane, was not injured. The airplane was registered to and operated by Planter's Dusting Company of Alexandria, Louisiana. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 137 aerial application flight. The local flight was originating at the time of the accident.

The 2,900-hour pilot reported in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) that prior to departure from Runway 33, 250 gallons of insecticide were loaded into the airplane's hopper. According to the pilot the airplane traveled approximately 1,875 feet of the 2,500-foot long grass airstrip before the pilot rotated for take off. Following rotation, the airplane "seemed to have difficulty gaining airspeed." Subsequently the airplane stalled. According to the pilot, when the airplane stalled it turned 90 degrees to the right and impacted terrain. The pilot estimates that the wind was from the southeast at approximately 5 to 6 knots at the time of accident.

During a telephone interview with the NTSB investigator-in-charge (IIC), the pilot stated that the 250 gallons of insecticide was the maximum load the airplane was able to carry, and estimated that the payload was approximately 2,000 pounds. The pilot stated he did not compute weight and balance prior to the flight. However, the pilot reported that he did refer to a weight and balance chart kept in the operator's manual to confirm that he was within the weight limits of the airplane.

The Federal Aviation Administration (FAA) inspector who responded to the accident site, reported that the wing, horizontal stabilizer and fuselage received structural damage.

Weather reported at 1253 CDT from Alexandria International Airport (KAEX) near Alexandria, Louisiana, located 2.5 miles north east of the private field, reported winds from 200 degrees at 3 knots, visibility 10 statute miles, temperature 89.6 degrees Fahrenheit, dew point of 71.6 degrees Fahrenheit, and a barometric pressure setting of 30.01 inches of Mercury. The IIC calculated the density altitude at 1,970 feet.

Aircraft

Registration
N6903K
Reported as
Grumman G164B
Category
Airplane
Serial number
518B
Airframe hours
8,440
Engine
Pratt & Whitney R-1340-AN-1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
John H. Marien D.B.A.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · January 1, 2005 · 69 hours before
Departed
Alexandria, LA

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
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
June 1, 2005
Seat
Single
Flight hours
2,925 total · 1,230 in this make and model · 2,700 as pilot in command · 150 in the last 90 days · 20 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 70 °F
Altimeter
30.01 inHg
Observed at
KAEX, 3 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.