ATL83FU003

NTSB accident investigation · Airmass Sunburst Model B · Ernul, NC · July 2, 1983

Accident · FatalFinal report
Date
July 2, 1983, 12:10 local (16:10 UTC)
Place
Ernul, NC
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
UNREGAirmass Sunburst Model B
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
5980

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/malfunctionClimb
Wing,bracing wire - disconnectedCause
Maintenance,installation - improperCause
Wing - failure,totalCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt was en route from ayden, NC, where he purchased the ultralight, to his home in havelock, NC. While en route, he had landed at Ernul, NC to refuel. After refueling, he took off, circled back over the field, then added power & began to climb. At about that time, the left wing folded up from the root, and subsequently, the ultralight impacted the ground in a steep nose-down attitude. An investigation revealed that both left wing flying wires (cables) had separated where they were routed over thimbles for attachment to the hang cage. The nicopress sleeve (swedge fitting) on one of the cables had been installed over the plastic coating on the cable, rather than directly on the cable.

Aircraft

Registration
UNREG
Reported as
Airmass Sunburst Model B (SUNBURST M)
Category
Ultralight, amateur-built
Airframe hours
10
Engine
Cuyuna 430R, 30 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 103
Registered owner
Daniel E. Howard
Destination
Havelock, NC

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
32
Airplane ratings
Single-engine land
Medical
Unknown, Unknown
Seat
Center
Flight hours
10 total · 10 in this make and model · 10 as pilot in command · 10 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
225° at 5 knots
Lowest ceiling
None