FTW84LU001

NTSB accident investigation · Pterodactyl Ascender II · Manvel, TX · October 23, 1983

Accident · Serious injuriesFinal report
Date
October 23, 1983, 15:00 local (20:00 UTC)
Place
Manvel, TX
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
UNREGPterodactyl Ascender II
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
21489

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.

Loss of engine powerTakeoff - initial climb
Reason for occurrence undeterminedCause
Forced landingLanding
In flight collision with objectManeuvering - turn to landing area (emergency)
Object - wire,staticFactor
Visual lookout - inadequatePilot in commandCause

Analysis

The plt reported that during takeoff, the eng began to lose power, just after he passed the end of the rwy. He turned back toward the rwy & the eng stopped. Shortly after that the ultralight vehicle struck a strand of barbed wire which was mounted about 30 ft above the ground. The wire was over adjoining properly, a short distance from the end of the rwy. After hitting the wire, the ultralight crashed on the rwy. The plt did not see the wire until just prior to impact & was unaware that it had been installed there. The reason for the power loss was not verified.

Aircraft

Registration
UNREG
Reported as
Pterodactyl Ascender II (ASCENDER I)
Category
Ultralight, amateur-built
Airframe hours
100
Engine
Cuyuna UL2-02, reciprocating
Damage
Substantial damage
Flight
Personal · Part 103
Registered owner
Robert M. Wolff
Airport
runway 33, 800 × ft, grass/turf

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
32
Airplane ratings
Single-engine land
Medical
Unknown, Expired
Seat
Front
Flight hours
267 total · 37 in this make and model · 254 as pilot in command · 35 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day