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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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July 14, 1998 · Piper PA-22 · N1724P

North Pole, AK

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 14, 1998
Injury Outcomes
No injuries (2 uninjured)
Location
North Pole, AK
Aircraft
Piper PA-22
Tail Number
N1724P
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC98LA095

The pilot and a passenger were departing from a private airstrip. During the takeoff roll, the airplane's left main tire entered a rut, and veered to the left. The left main tire then entered an area of tall grass located along the left edge of the airstrip. The left wingtip then struck a tree. The airplane pivoted about 180 degrees to the left, and the right main landing gear collapsed. The right wing, and the right elevator, struck the ground. The airplane received additional damage to the tailwheel assembly, the fuselage, and the propeller.

NTSB Probable Cause

The pilot's selection of unsuitable runway terrain for takeoff, and his failure to maintain directional control of the airplane. Factors in the accident were uneven/rutted terrain, and high vegetation along the runway edge.

Full Narrative

On July 13, 1998, about 2130 Alaska daylight time, N1724P, a Piper PA-22 airplane converted to a tailwheel configuration, sustained substantial damage during takeoff from a private airstrip, about 23 miles south of North Pole, Alaska. The airplane was being operated as a visual flight rules (VFR) local area personal flight when the accident occurred. The airplane was registered to, and operated by, the pilot. The certificated private pilot, and the sole passenger, were not injured. Visual meteorological conditions prevailed. A VFR flight plan was filed. In the pilot/operator report (NTSB form 6120.1/2) submitted by the pilot, the pilot reported he was departing from the Blair Lake Airstrip. The pilot indicated that during the takeoff roll, the airplane's left main tire entered a rut, and veered to the left. The left main tire then entered an area of tall grass located along the left edge of the airstrip. The pilot retarded the engine throttle, but the left wingtip struck a tree. The airplane pivoted about 180 degrees to the left, and the right main landing gear collapsed. The airplane received damage to the wings, the right landing gear, the right elevator, and the tailwheel assembly.

Flight

Event TypeAccident
Event Time21:30 AKDT
Nearest AirportBlair Lake (0nm)
Runway9
Runway Length1500 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-22
Tail NumberN1724P
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 · Reciprocating · 150
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 45 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind330° @ 3 kt
Visibility10 sm
CeilingBroken clouds 20000 ft
Temperature / Dew Point61 F / 54
Altimeter29.00 inHg
Observation Time00:53
Weather SourceWFAC

Appendix: Source Data