ANC99LA133

NTSB accident investigation · Piper PA-18 · Kenai, AK · September 5, 1999

Accident · Minor injuriesLimited investigationFinal report
Date
September 5, 1999, 09:45 local (17:45 UTC)
Place
Kenai, AK
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3903ZPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report November 22, 2000
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19990905025409A
Case key
47328

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 inadvertent stall. A factor was the intentional low altitude maneuvering by the pilot.

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 flightManeuvering
Low altitude flight/maneuver - intentionalPilot in commandFactor
Lack of certificationPilot in command
Stall - inadvertentPilot in commandCause
In flight collision with objectDescent - uncontrolled
Object - tree(s)

Analysis

The student pilot and sole passenger were circling wildlife about 200 feet above ground level. The pilot told the NTSB investigator-in-charge he had one notch of flaps extended, the carburetor heat was off, and the airspeed was about 60 miles per hour. He said he attempted to raise the left wing, the wing dropped, the airplane stalled, and the airplane contacted the trees. He stated there was nothing wrong with the airplane, he should have been circling higher, and that he should have increased power before attempting to lift the wing.

Factual narrative

On September 5, 1999, about 0945 Alaska daylight time, a Piper PA-18 airplane, N3903Z, sustained substantial damage when it collided with trees after an in-flight loss of control while maneuvering about 200 feet above the ground (agl). The accident occurred at 60 degrees 47.68 minutes north latitude, 152 degrees 08.57 minutes west longitude, about 25 miles west of Kenai, Alaska. The student pilot and the one passenger on board sustained minor injuries. The personal flight was being conducted under 14 CFR Part 91 by the airplane's owner. The flight departed from an off airport site about 0930. Visual meteorological conditions prevailed at the time of the accident, and no plan was filed.

During a telephone interview with the NTSB investigator-in-charge (IIC) on September 6, the pilot stated that he and his wife had departed from a relative's landing strip near the accident site about 0730. They landed at an off airport site for a break, then took off again about 0930. The pilot said he was circling about 200 feet above the ground to view wildlife. He indicated that he had extended one notch of flaps, the carburetor heat was off, and the airspeed was about 60 miles per hour. He said he attempted to lift the left wing, the left wing dropped, the airplane stalled, and the airplane contacted the trees. The pilot stated there was nothing wrong with the airplane, that he should have been circling higher, and that he should have increased engine power prior to making a turn. The pilot and passenger walked to another landing strip, where they were picked up by relatives.

Aircraft

Registration
N3903Z
Reported as
Piper PA-18
Category
Airplane
Serial number
18-7715
Airframe hours
4,193
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
David N. Yragui
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 10, 1999 · 16 hours before
Departed
Gravel Bar, AK

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
42
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
116 total · 89 in this make and model · 84 as pilot in command · 26 in the last 90 days · 23 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
64 °F

FAA reports on this event · 1

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