MIA08CA201

NTSB accident investigation · Cox Clyde H Fshr Aero Vsns Clbty · Tampa, FL · September 25, 2008

Accident · Serious injuriesData collectionFinal report
Date
September 25, 2008, 12:03 local (16:03 UTC)
Place
Tampa, FL
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N716HJCox Clyde H Fshr Aero Vsns Clbty
Defining event
Initial climb: Dragged wing/rotor/float/other
Weather
Visual (VMC) · Day
Status
Completed · report January 22, 2009
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20080925849799A
Case key
69001

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 control of the airplane during takeoff due to inadequate maintenance.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Wing structureAircraft › Aircraft structures · Incorrect service/maintenanceCox Clyde H FSHR AERO VSNS CLBTY: 1 caseAll aircraft: 48 casesProbable cause
MaintenancePersonnel issues › Task performance · PilotCox Clyde H FSHR AERO VSNS CLBTY: 1 caseAll aircraft: 143 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

According to a witness, a slight gust of wind came across the airfield during takeoff. He stated that the airplane was two to three feet off the ground when the left wing dipped, hit the runway, and caused the airplane to cartwheel several times. According to an Airframe and Powerplant (A&P) mechanic, the pilot was anxious to take his aircraft so he started adjusting the tension on the flying wire cables himself. The cables on the left wing remained loose even after adjusting the turnbuckles. The A&P recommended to the pilot that the cables be cut and re-swaged to which the pilot declined. On the day of the accident, the pilot taxied his airplane away from A&P’s property, without having any of the discrepancies corrected. Examination of the airplane by a Federal Aviation Administration inspector found that the pilot preferred to do his own maintenance, and that an annual inspection was not completed on the airplane. He found that the left wing's flying wires were not attached properly to the main frame, which was evidenced by the oblong fitting coupled with the bare metal on the main frame bracket showing that the assembly pulled apart from the fuselage before or just prior to takeoff.

Factual narrative

According to a witness, while standing at his work place watching the airplane takeoff, a slight gust of wind came across the airfield. He stated that the airplane was two to three feet off the ground when the left wing dipped, hit the runway, and caused the airplane to cart wheel several times. According to a Federal Aviation Administration (FAA) inspector, the upper left wing was ripped off from the aircraft during impact. The right wing was still attached to the fuselage. Sections of wood chips from the wings were scattered for approximately 100 feet from the point of impact to the final resting spot. There was no post crash fire or evidence of fuel leakage at the scene. According to an Airframe and Powerplant (A&P) mechanic who started an annual inspection on the airplane but did not complete it stated that he had provided the pilot with a list of items that needed to be corrected before the inspection could be signed off. The A&P said that he found the airplane to be in pretty good shape during the inspection. However, he was concerned about the tension on the wing flying wires which appeared to be very loose especially the left side. The A&P mechanic presented his findings to the pilot, and asked him to contact the aircraft manufacturer to obtain the tension specifications on the wires. A note was made by the A&P in the inspection checklist and the discrepancy list. According to the A&P the pilot was anxious to take his aircraft so he started adjusting the tension on the flying wire cables himself. The cables on the left wing remained loose even after adjusting the turnbuckles. The A&P recommended to the pilot that the cables be cut and re-swaged to which the pilot declined. On the day of the accident, the pilot taxied his airplane away from A&P’s property, without having any of the discrepancies corrected. Examination of the right wing flying wires by the FAA Inspector found the three turnbuckles were still attached to the main fuselage frame. The left wing flying cables were not attached to the main fuselage frame. However, the bolt with the nut was attached to the fuselage frame. The left wing flying wires attachment fitting, which holds the three flying wire turnbuckles and fastens to the main frame on the fuselage, appeared to be oblong. Other than signs of scrapping on the attachment fitting, there were no signs of cracking or separation on the fitting. Further examination of the left main wing bracket on the fuselage showed signs of bare metal and scrapes. The FAA Inspector inserted the attachment fitting behind the bolt on the main frame. With a little force, the attachment fitting could be pushed pass the bolt. Due to the pilot’s injuries and the medically induced coma, the pilot was unable to complete the Pilot/Operator Aircraft Accident Report.

Aircraft

Registration
N716HJ
Reported as
Cox Clyde H Fshr Aero Vsns Clbty
Category
Airplane, amateur-built
Serial number
AV 1033
Airframe hours
6.61
Engine
Continental O200-A6A, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Condition · June 15, 1999 · 1 hours before
Departed
X39 · Tampa, FL
Destination
X39 · Tampa, FL
Flight plan
Unknown
Airport
X39 · Tampa North Aero Park, runway 32, 3,541 × 50 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
68
Injuries
Serious
Certificates
Private, Commercial
Airplane ratings
Multi-engine land, Multi-engine sea, Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
March 12, 2008
Seat
Front
Flight hours
2,430 total · 1 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 63 °F
Altimeter
29.95 inHg
Observed at
VDF, 12 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.