ANC04CA105

NTSB accident investigation · Piper PA-18 · Healy, AK · September 6, 2004

Accident · No injuriesData collectionFinal report
Date
September 6, 2004, 14:00 local (22:00 UTC)
Place
Healy, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7472DPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report December 3, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-ANC FSDO 03
FAA report
20040906021109A
Case key
60064

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 compensation for wind conditions, and failure to maintain directional control of the airplane during the takeoff roll, which resulted in a collision with vegetation and a nose over. A factor contributing to the accident was a tailwind.

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 - on ground/waterTakeoff - roll/run
Weather condition - tailwindFactor
Compensation for wind conditions - inadequatePilot in commandCause
Directional control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - high vegetation
Nose overTakeoff - roll/run

Analysis

The airline transport certificated pilot was departing from a tundra/gravel covered area along a creek. He described the takeoff area as 20 feet wide, by 300 feet long, with a dogleg turn to the left, and an additional takeoff area of 600 feet. The entire takeoff area slopes downhill. The pilot said he was departing toward the north, with a 6 to 10 knot tailwind. He said about 100 feet past the dogleg turn to the left, the tailwind pushed the tail of the airplane to the right. The nose of the airplane veered to the left, collided with willow bushes, and nosed over. The airplane received damage to the right wing lift struts, the rudder, and the right elevator.

Factual narrative

On September 6, 2004, about 1400 Alaska daylight time, a tundra tire-equipped Piper PA-18 airplane, N7472D, sustained substantial damage when it collided with willow trees and nosed over during the takeoff run from a remote area about 18 miles east-northeast of Healy, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight from the area of Healy Creek, under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the pilot. The airline transport certificated pilot and the sole passenger were not injured. Visual meteorological conditions prevailed, and a VFR flight plan was filed for the flight from Healy Creek, to Healy, Alaska.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on September 7, the pilot reported that he was departing from a tundra/gravel covered area along Healy Creek. He described the takeoff area as 20 feet wide, by 300 feet long, with a dogleg turn to the left, and an additional takeoff area of 600 feet. The entire takeoff area slopes downhill. The pilot said he was departing toward the north, with a 6 to 10 knot tailwind. He said about 100 feet past the dogleg turn to the left, the tailwind pushed the tail of his airplane to the right. The nose of the airplane veered to the left, collided with willow bushes, and nosed over. The airplane received damage to the right wing lift struts, the rudder, and the right elevator.

Aircraft

Registration
N7472D
Reported as
Piper PA-18
Category
Airplane
Serial number
18-5807
Engine
Lycoming O-360-A4D, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Larry D. Nauta
Airworthiness certificate
Standard, Normal
Departed
Healy, AK
Destination
Healy, AK
Flight plan
VFR

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
56
Injuries
None
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2
Flight hours
5,000 total · 1,000 in this make and model · 100 in the last 90 days · 35 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
45 °F

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 N7472D · 1

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