FTW99LA087

NTSB accident investigation · Monocoupe 90A · Fort Worth, TX · February 28, 1999

Accident · No injuriesLimited investigationFinal report
Date
February 28, 1999, 11:23 local (17:23 UTC)
Place
Fort Worth, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N11760Monocoupe 90A
Weather
Visual (VMC) · Day
Status
Completed · report September 7, 2000
Report
Approved by Office Director
FAA report
19990228011389A
Case key
45816

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 failure to maintain directional control during the landing roll, which resulted in an inadvertent ground loop/swerve. A factor was the crosswind.

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
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - encounteredPilot in command
Main gear collapsedLanding - roll

Analysis

During the landing roll on runway 14, the right wing of the tailwheel-equipped airplane lifted, and the right main landing gear came off the ground. The airline transport rated pilot reported that the application of full right aileron had no effect 'due to calm winds and aircraft being slowed down.' The pilot stated that the aircraft 'never departed heading.' However, damage to the airplane and skid marks and scrapes on the runway indicated the airplane swerved to the right, the left main landing gear folded under the fuselage, and the left wing contacted the ground. The pilot reported the winds were calm. Recorded winds 30 minutes before the accident were from 230 degrees at 7 to 9 knots (right crosswind). Recorded winds 30 minutes after the accident were calm to variable at 4 knots.

Factual narrative

On February 28, 1999, at 1123 central standard time, a Monocoupe 90A airplane, N11760, was substantially damaged when the left main landing gear collapsed during landing roll at Hicks Airfield near Fort Worth, Texas. The airplane was registered to and operated by Paisano, Inc., of Wilmington, Delaware. The airline transport rated pilot and his passenger were not injured. Visual meteorological conditions prevailed and no flight plan was filed for the 14 Code of Federal Regulations Part 91 local personal flight.

The pilot reported that a "normal landing and rollout was accomplished" on runway 14. As he began to "look upfield for runway turnoff," the right wing of the tailwheel-equipped airplane lifted, and the right main landing gear came off the ground. The application of full right aileron had no effect "due to calm winds and aircraft being slowed down." The left gear collapsed, and the left wing tip contacted the runway. The pilot stated that the aircraft "never departed heading."

The Tarrant County Sheriff's Department dispatched two deputies to the accident. One of the deputies reported that he arrived at the airport at 1131 and observed "10 to 13 men" gathered around the airplane, which was located in the grassy area west of the runway. According to the deputy, the airplane was "facing a northwest direction with its left landing gear bent up underneath it and the left wing on the ground." The other deputy reported that when he arrived at the airport, he observed "several individuals attempting to move the plane." He further reported that he requested the men leave the airplane where it was until permission was given by the FAA to move it. According to the deputy, one of the men told him "they had already moved the plane from the runway to its present location." The men then moved the airplane to a hangar at the airport. The deputy stated that "after the plane had already been removed," the FAA "did authorize the plane to be moved."

After the airplane was moved, an FAA inspector examined and photographed the airplane and the runway. Review of the inspector's photographs by the NTSB investigator-in-charge revealed that the airplane's left wing was bent upward, and the left main landing gear was folded under the fuselage. The outboard surface of the left main wheel cover and the lower surface of the left wing outboard of the lift strut were scraped and scratched. Skid marks and scrapes were visible approximately midfield on the runway leading from the centerline off the west edge of the asphalt.

At 1053 and 1153, the reported winds at Fort Worth Meacham International Airport, located 6 nautical miles south of the accident site, were from 230 degrees at 7 knots and variable at 4 knots, respectively. At 1053 and 1153, the reported winds at Fort Worth Alliance Airport, located 5 nautical miles northeast of the accident site, were from 230 degrees at 9 knots and calm, respectively.

Aircraft

Registration
N11760
Reported as
Monocoupe 90A
Category
Airplane
Serial number
A-689
Airframe hours
4,000
Engine
Lycoming O-290-D2, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Paisano Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 8, 1998 · 4 hours before
Departed
T67
Airport
T67 · Hicks Airfield, runway 14, 3,740 × 60 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
32
Certificates
Airline transport, Flight instructor, Commercial, Flight engineer
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
6,300 total · 60 in this make and model · 3,370 as pilot in command · 120 in the last 90 days · 40 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
FTW, 6 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.