ANC05CA040

NTSB accident investigation · Air Tractor AT-602 · Panama City, FL · March 2, 2005

Accident · No injuriesData collectionFinal report
Date
March 2, 2005, 06:45 local (12:45 UTC)
Place
Panama City, FL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N5006VAir Tractor AT-602
Weather
Visual (VMC) · Day
Status
Completed · report July 7, 2005
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20050302002019A
Case key
61305

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 remove frost from the airplane which resulted in an inadvertent stall/mush during the takeoff/initial climb, and an in-flight collision with trees. Contributing to the accident were the rough and uneven airstrip, and degraded aircraft performance due to frost on the wing.

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.

On ground/water encounter with terrain/waterTakeoff - roll/run
Lift-off - premature
Terrain condition - rough/uneven
Loss of control - in flightTakeoff - initial climb
Wing - frost
Ice/frost removal from aircraft - not performedPilot in commandCause
Aircraft performance - deterioratedFactor
Airspeed(vs) - not attainedPilot in command
Stall/mush - inadvertentPilot in command
In flight collision with objectDescent - uncontrolled
Object - tree(s)

Analysis

The operator reported that the certificated commercial pilot was departing from a private airstrip in a turbine-powered airplane with 3,500 pounds of fertilizer on board. The operator noted that the accident flight was the pilot's first flight of the day, and that there was "heavy frost on the aircraft" prior to departure. During the pilot's takeoff run on the rough and uneven airstrip, the airplane's main wheels struck a bump that bounced the airplane into the air. Once the airplane was airborne, it rolled left, and the left wing struck the ground. The operator wrote, in part: "At this point, the aircraft was trying to gain altitude, but stalled and went into the trees under full power..." The airplane sustained substantial damage to the wings, fuselage, and empennage. The operator reported that there were no preaccident mechanical anomalies with the airplane.

Factual narrative

On March 2, 2005, about 0645 Central standard time, a turbine-powered Air Tractor AT-602 airplane, N5006V, sustained substantial damage when it collided with trees during takeoff from a private airstrip, about 23 miles northeast of Panama City, Florida. The airplane was being operated by Gentry's Flying Service, LLC., Jones, Alabama, as a 14 CFR Part 137, aerial application flight when the accident occurred. The certificated commercial pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed at the time of the accident, and company flight following procedures were in effect.

According to the NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the operator, the accident flight was the pilot's first flight of the day. The operator noted that there was "heavy frost on the aircraft" prior to departure. The airplane was loaded with 3,500 pounds of fertilizer. According to the operator's written statement, during the takeoff run on the rough and uneven airstrip, the airplane's main wheels struck a bump that bounced the airplane into the air. Once the airplane was airborne, it rolled left, and the left wing struck the ground. The operator wrote, in part: "At this point, the aircraft was trying to gain altitude, but stalled and went into the trees under full power..." The airplane sustained substantial damage to the wings, fuselage, and empennage. The operator reported that there were no preaccident mechanical anomalies with the airplane.

Aircraft

Registration
N5006V
Reported as
Air Tractor AT-602
Category
Airplane
Serial number
602-0422
Airframe hours
8,129.6
Engine
Pratt & Whitney Canada PT6A-45R, 1,050 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Gentry's Flying Service, LLC.
Registered owner
Gentry's Flying Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · January 8, 2005 · 86.6 hours before
Departed
Panama City, FL
Destination
Panama City, FL
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
47
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
April 8, 2004
Seat
Center
Flight hours
27,701 total · 10,400 in this make and model · 26,100 as pilot in command · 87 in the last 90 days · 27 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
28 °F

FAA reports on this event · 1

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