ANC97LA118

NTSB accident investigation · Piper PA-18 · Circle, AK · August 9, 1997

Accident · No injuriesLimited investigationFinal report
Date
August 8, 1997, 17:30 local (Aug 9, 1997, 01:30 UTC)
Place
Circle, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N339TPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report November 10, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19970808021509A
Case key
3041

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 inadequate visual lookout by the pilot, and his selection of a landing area with high vegetation in the landing path. Factors which contributed to the accident were fatigue and the high vegatation.

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/waterLanding - roll
Visual lookout - inadequatePilot in commandCause
FatiguePilot in commandFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - high vegetationFactor
Loss of control - on ground/waterLanding - roll
Ground loop/swerve - inadvertentPilot in command

Analysis

The tundra tire equipped airplane touched down at the beginning of the 1,100-foot-long by 50-feet-wide grass strip. The right wing contacted willow brush, and the airplane ground looped. The pilot said he was trying to land at the beginning of the landing area, and did not see the brush. He also noted that he was fatigued.

Factual narrative

On August 8, 1997, about 1730 Alaska daylight time, a tundra tire equipped Piper PA-18 airplane, N339T, sustained substantial damage when it contacted brush and ground looped during landing at an 1,100 feet long by 50 feet wide grass private airstrip, 28 miles southeast of Circle, Alaska. The solo private pilot was uninjured. The airplane was operated by Ingo, Inc., of Fairbanks, Alaska. The flight was conducted under 14 CFR Part 91 as a personal flight, visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed.

The pilot stated that upon touchdown, the right wing contacted brush along the side of the airstrip, and the airplane ground looped. The pilot had landed at this same airstrip on previous occasions. He said that brush had grown into the approach end of the strip.

During a telephone interview with the FAA, and in his NTSB Pilot-Operator Report, the pilot indicated he was tired. He also stated that he wanted to use the entire landing length available, and did not see the brush which had grown into the airstrip.

Aircraft

Registration
N339T
Reported as
Piper PA-18
Category
Airplane
Serial number
18-2453
Airframe hours
4,917
Engine
Lycoming O-360-A3A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Ingo Hans Brigmann, doing business as Ingo H. Brigmann
Registered owner
Ingo Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 1997 · 22 hours before
Departed
CRC · AK
Destination
28 Mi Up Yukon, AK
Airport
runway 9, 1,100 × 50 ft, grass/turf

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
55
Certificates
Foreign, Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
811 total · 750 in this make and model · 760 as pilot in command · 41 in the last 90 days · 34 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 6 knots
Visibility
75 statute miles
Lowest ceiling
4,000 ft broken
Temperature
55 °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 N339T · 4

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