CHI99LA274

NTSB accident investigation · North American AT-6G · Harlan, IA · August 1, 1999

Accident · No injuriesLimited investigationFinal report
Date
August 1, 1999, 15:00 local (20:00 UTC)
Place
Harlan, IA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N98FPNorth American AT-6G
Weather
Visual (VMC) · Day
Status
Completed · report October 13, 2000
Report
Approved by Office Director
FAA report
19990801040359A
Case key
46911

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 failure of the pilot to maintain directional control of the aircraft during landing. Factors to the accident were the crosswind, the failure of the pilot to maintain compensation for the crosswind condition on approach, and the inadvertent ground loop encountered 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 - on ground/waterLanding - roll
Weather condition - crosswindFactor
Compensation for wind conditions - not maintainedPilot in commandFactor
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandFactor
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ditchFactor

Analysis

On landing, the aircraft departed the left side of the runway 33 and struck a small ditch embankment. The aircraft came to rest approximately 100 yards west of the runway. A weather report showed winds from 30-degrees magnetic at 8 knots gusting to 14 knots. The pilot stated that he was landing in a crosswind. The pilot stated that the crosswind correction used on the approach was not '...well stabilized, and [a] go around was contemplated, but [the airplane] touched down and ground looped.' A post accident examination of the airplane revealed no preexisting anomalies.

Factual narrative

On August 1, 1999, at 1500 central daylight time, a North American AT-6G, N98FP, piloted by a commercial pilot, sustained substantial damage during landing, on Runway 33 (4,100 feet by 75 feet, dry/asphalt), at the Harlan Municipal Airport, Harlan, Iowa. The flight was conducted under the provisions of 14 CFR Part 91 and was not on a flight plan. The pilot reported no injuries to himself or to his one passenger. The flight had originated from the Wittman Regional Airport, Oshkosh, Wisconsin, about 1200.

In a written statement, the pilot stated that he was landing in a crosswind. The pilot stated that the crosswind correction used on the approach was not "...well stabilized, and [a] go around was contemplated, but [the airplane] touched down and ground looped."

The aircraft departed the left side of the runway and struck a small ditch embankment. The aircraft came to rest approximately 100 yards west of the runway.

A weather report for a reporting station located at the Aububon County Airport, Audubon, Iowa, which is 20 nautical miles and 70-degrees magnetic from the accident site, was reporting winds from 30-degrees magnetic at 8 knots gusting to 14 knots.

A post accident examination of the airplane revealed no preexisting anomalies.

Aircraft

Registration
N98FP
Reported as
North American AT-6G
Category
Airplane
Serial number
7695
Airframe hours
4,197
Engine
P&W 1340-AN, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William M Reed
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 1999 · 21 hours before
Departed
OSH · Oshkosh, WI
Destination
HNR
Airport
HNR · Harlan Municipal Airport, runway 33, 4,100 × 75 ft, asphalt

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
64
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
603 total · 422 in this make and model · 513 as pilot in command · 31 in the last 90 days · 23 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 8 knots, gusting 14
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 64 °F
Altimeter
30.00 inHg
Observed at
ADU, 20 nm away

FAA reports on this event · 1

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