FTW83FA424

NTSB accident investigation · Partenavia P68C · Plainview, TX · September 11, 1983

Accident · FatalField investigationFinal report
Date
September 11, 1983, 14:25 local (19:25 UTC)
Place
Plainview, TX
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N29561Partenavia P68C
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830911047799A
Case key
20762

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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
In-flight planning/decision - improperPilot in commandCause
Overconfidence in aircraft's abilityPilot in commandCause
Airspeed - exceededPilot in commandCause
Wing - overloadCause
Design stress limits of aircraft - exceededPilot in commandCause
Wing - failure,totalFactor
Wing - separationFactor
In flight collision with terrain/waterManeuvering

Analysis

The plt was executing a high speed pass over the rwy at about 250 ft AGL. The plt then began a rapid pull-up & both wings separated just outboard of the eng nacelles. Reconstruction of the sequence from a videotape revealed that the acft's speed at the time of the wing separations was 220 KTS. Vne for the acft is 193 KTS. It was calculated that, at 220 KTS & an 8 deg nose-up pitch, the 'g' load at the time of the wing separations would have been 8.3 g's.

Aircraft

Registration
N29561
Reported as
Partenavia P68C
Category
Airplane
Serial number
266
Airframe hours
342
Engine
Lycoming IO-360-A1B6, 200 horsepower, reciprocating
Damage
Destroyed
Flight
Part 91
Registered owner
Windward Aviation Inc.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
100 hour · August 17, 1983 · 37 hours before
Airport
PVW · Hale County

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
46
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
15 statute miles
Lowest ceiling
3,800 ft broken
Temperature
86 °F, dew point 61 °F
Altimeter
30.00 inHg
Observed at
LBB, 45 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.