FTW98LA085

NTSB accident investigation · Mooney M20J · Westport, OK · January 2, 1998

Accident · No injuriesLimited investigationFinal report
Date
January 2, 1998, 16:40 local (22:40 UTC)
Place
Westport, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N201LGMooney M20J
Weather
Visual (VMC) · Day
Status
Completed · report December 8, 1998
Report
Approved by Office Director
Case key
20511

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 inadequate compensation for the existing wind conditions. A factor was gusty winds.

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 flightApproach - vfr pattern - final approach
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
In flight collision with terrain/waterApproach - vfr pattern - final approach
Object - tree(s)

Analysis

After an uneventful 50-minute cross-country flight, the pilot entered the landing pattern and observed the windsock indicating winds from 190 at 10-15 knots. After a normal downwind, base, and final approach, and about 160 yards down the runway, the aircraft was about to touch down when it started to veer to the left. The pilot attempted to stabilize directional control by applying right rudder and adding power. A gust of wind then 'lifted the right wing to a 20 degree' bank and turned the aircraft further to the left, which aligned the nose of the airplane toward some tree tops. Subsequently, the airplane impacted the trees, and settled to the ground, upright, and nose low. The pattern was flown with 1/2 flaps selected on base and full flaps on final. The pilot said that the winds at the accident site were from 190 degrees at 12 knots, gusting to 15 knots. Reported winds, 28 miles east of the accident site, were from 190 degrees at 16 knots, gusting to 25 knots. Inspection of the wind sock showed that it was functioning properly.

Factual narrative

On January 2, 1998, at 1640 central standard time, a Mooney M20J airplane, N201LG, registered to and operated by the pilot, collided with trees following a loss of control while landing on runway 21 at Keystone Airpark, Westport, Oklahoma. The aircraft was substantially damaged and the private pilot, the sole occupant, was not injured. No flight plan was filed and visual meteorological conditions prevailed for the Title 14 CFR Part 91 personal flight, which originated from Poteau, Oklahoma, at 1550.

In a written statement, the pilot reported that after an uneventful 50 minute cross country flight, he entered the landing pattern at Keystone and observed the windsock which indicated winds from 190 at 10 to 15 knots. He reported that, after a normal downwind, base, and final approach, he crossed the threshold and approximately 160 yards down the runway, the aircraft was about to touchdown when it started to veer to the left. The pilot attempted to stabilize directional control by applying right rudder and adding power. He stated that, a gust of wind then "lifted the right wing to a 20 degree" bank and turned the aircraft further to the left, which aligned the nose of the airplane toward some tree tops. Subsequently, the airplane impacted the trees, and settled to the ground, upright, and nose low.

Examination of the wreckage by an FAA inspector revealed that the fuselage and empennage were buckled, and the right wing was separated at the root.

The pilot flew the standard VFR pattern with 1/2 flaps selected on base and full flaps on final. He reported the winds at the accident site to be from 190 degrees at 12 knots, gusting to 15 knots. The reported winds at Tulsa, Oklahoma, located about 28 miles east of the accident site, were from 190 degrees at 16 knots, gusting to 25 knots. Inspection of the wind sock after the accident showed that it was intact and functioning properly. Examination of the aircraft by an FAA inspector after the accident did not reveal any preexisting control system anomalies that could have contributed to the accident. The pilot did not report any control problems with the aircraft during the flight.

Aircraft

Registration
N201LG
Reported as
Mooney M20J
Category
Airplane
Serial number
24-0460
Airframe hours
1,723
Engine
Lycoming IO-360-A3B6D, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard L. Moore
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 23, 1995 · 259 hours before
Departed
RKR · Poteau, OK
Destination
4F1 · OK
Airport
NONE · Keystone Airpark, runway 21, 4,000 × 55 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
61
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,505 total · 2,100 in this make and model · 2,404 as pilot in command · 26 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 16 knots, gusting 25
Visibility
10 statute miles
Lowest ceiling
3,200 ft overcast
Temperature
61 °F, dew point 50 °F
Altimeter
29.00 inHg
Observed at
TUL, 28 nm away