NYC85FGM05

NTSB accident investigation · James Postlewait RV-4 · Zelienople, PA · August 2, 1985

Accident · FatalFinal report
Date
August 2, 1985, 14:30 local (18:30 UTC)
Place
Zelienople, PA
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N85JPJames Postlewait RV-4
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850802035999A
Case key
35596

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 control - in flightTakeoff - initial climb
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

A witness reported that when the acft was departing, the takeoff run & beginning of the climb appeared to be normal. However, at about 300 to 400 ft AGL, the left wing dropped & the acft pivoted to the left, then the plane crashed in a steep nose down descent. No preimpact part failure or malfunction was found.

Aircraft

Registration
N85JP
Reported as
James Postlewait RV-4
Category
Airplane, amateur-built
Serial number
105
Airframe hours
125
Engine
Lycoming O-320-E2D, 150 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
James Postlewait
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · May 31, 1985 · 97 hours before
Destination
BTP · Butler, PA
Airport
Zelienople Muni, runway 35, 4,560 × 75 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
48
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Unknown
Seat
Front
Toxicology
Performed
Flight hours
1,500 total · 125 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 6 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 46 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.