ANC02LA092

NTSB accident investigation · Piper PA-18-150 · Tok, AK · August 6, 2002

Accident · No injuriesLimited investigationFinal report
Date
August 6, 2002, 14:00 local (22:00 UTC)
Place
Tok, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4122EPiper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed · report April 29, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA Anchorage FSDO-03
FAA report
20020806023199A
Case key
55411

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 clearance from terrain and trees during a low pass to examine a potential landing site.

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/waterManeuvering
Terrain condition - high vegetation
Terrain condition - sand bar
Clearance - not maintainedPilot in commandCause
In flight collision with objectClimb
Clearance - not maintainedPilot in commandCause
Object - tree(s)

Analysis

The pilot reported that he was making a low pass to examine a sand bar as a potential landing site. He said he intentionally rolled the main wheels on the surface of the sand bar to determine its suitability. As he touched down, the airplane's left wing hit willows alongside the sand bar. He said he initiated a climb, but collided with trees at a slow airspeed about 35 feet above the ground, and the airplane fell to the ground.

Factual narrative

On August 6, 2002, about 1400 Alaska daylight time, a Piper PA-18-150 airplane, N4122E, sustained substantial damage when the left wing encountered willows during a low pass over a sandbar, about 25 miles south of Tok, Alaska. The airplane was being operated as a visual flight rules (VFR) local personal flight under Title 14, CFR Part 91, when the accident occurred. The solo airline transport pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at the Tok Airstrip, Tok, about 1300.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on August 6, the pilot said he was making a low pass over a sandbar to check its suitability for landing. He said his intention was to roll the airplane tires over the surface of the sandbar without landing. He said when the main wheels touched down, the left wingtip flew through some willows, which caused the airplane to veer to the left. He said he initiated a climb, and rolled the airplane to the right. He said the airplane entered the trees to the right of the sandbar, about 35 feet above the ground. The airplane exited the stand of trees at a slow airspeed, and impacted the ground. He said there were no known mechanical anomalies with the airplane prior to the flight.

The airplane sustained damage to both wing leading edges and spars, and the fuselage.

Aircraft

Registration
N4122E
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7809074
Airframe hours
3,636
Engine
Lycoming O-360-ABA, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Charles R. Rhodes
Registered owner
Charles Rhodes
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 27, 2001 · 40 hours before
Departed
PATJ · Tok, AK

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
45
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
April 24, 2002
Seat
Front
Flight hours
7,000 total · 700 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 4 knots
Visibility
10 statute miles
Lowest ceiling
6,500 ft overcast
Temperature
55 °F, dew point 54 °F
Altimeter
29.72 inHg
Observed at
PAOR

FAA reports on this event · 1

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