FTW84FA302

NTSB accident investigation · Mooney M-18LA · New Iberia, LA · July 7, 1984

Accident · FatalField investigationFinal report
Date
July 7, 1984, 17:00 local (22:00 UTC)
Place
New Iberia, LA
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N4090Mooney M-18LA
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840707030349A
Case key
21135

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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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.

Airframe/component/system failure/malfunctionManeuvering
Procedures/directives - not followedPilot in command
QualificationPilot in command
Wing,spar - deterioratedCause
Maintenance,inspection - inadequateOther maintenance personnelCause
Maneuver - performedPilot in command
Pull-up - initiatedPilot in command
Wing,spar - failure,totalCause
Wing - separation
In flight collision with terrain/waterDescent - uncontrolled

Analysis

A plt witness observed the acft in a 20 to 30 deg dive at high speed just prior to the accident. He reported that at an alt of about 1200 to 1300 ft, the acft began a pull-up. As the pull-up was started, the outboard portion of the acft's left wing folded upward & the acft intered an uncontrolled dive & crashed. The outboard 3 ft of the left wing was found relatively intact. The remainder of the wing was broken in numerous pieces. Also, the left aileron was bent upward about 3 ft from its outboard end. An exam of the wooden structure revealed discoloration in the fracture area. Evidence of wood deterioration & decay was found in localized areas around wing fasteners. A toxicological check of the plt's blood showed some alcohol (0.04%); however, the plt's body had not been immediately removed from the wreckage. The amount of alcohol due to putrefaction was not determined. The plt's last medical certificate was dated 12/18/81.

Aircraft

Registration
N4090
Reported as
Mooney M-18LA
Category
Airplane
Serial number
125
Airframe hours
12
Engine
Lycoming O-145-B2, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Arthur H. Fleming
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 10, 1983 · 12 hours before
Departed
ARA · New Iberia, LA

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
18
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Seat
Front
Toxicology
Performed

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 10 knots
Visibility
15 statute miles
Lowest ceiling
4,000 ft broken
Temperature
91 °F, dew point 77 °F
Altimeter
29.00 inHg
Observed at
ARA, 10 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.