ATL89DEK02

NTSB accident investigation · Alexander RV-4 · Delaware, OH · March 11, 1989

Accident · FatalFinal report
Date
March 11, 1989, 12:05 local (17:05 UTC)
Place
Delaware, OH
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Uncontrolled descent
Aircraft
N443JAAlexander RV-4
Weather
Visual (VMC) · Day
Status
Completed · report March 29, 1991
Report
Approved by Office Director
FAA report
19890311003589A
Case key
7824

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

Pilot inadvertently lost control of the aircraft which resulted in a stall spin and collision with the ground.

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 flightDescent - uncontrolled
Aircraft control - not maintainedPilot in commandCause
Altitude - not maintainedPilot in commandCause
Stall/spin - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - groundFactor

Analysis

The pilot was observed to be on base to final for landing on runway 28 at Delaware municipal airport. He was at a normal altitude and speed when the aircraft suddenly rolled to a nose down attitude of approximately 30 degrees. This rolling and pitching down continued until the aircraft disappeared behind a clump of trees. Smoke rose immediately from the location of the impact. The two occupants were fatally injured and the aircraft destroyed by the crash and ensuing fire. The aircraft was a homebuilt RV-4 with approximately 70 hours total time.

Aircraft

Registration
N443JA
Reported as
Alexander RV-4
Category
Airplane, amateur-built
Serial number
16
Airframe hours
70
Engine
Lycoming O-320-E2A, 150 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
James K. Alexander
Registered owner
James K. Alexander
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · July 6, 1988 · 70 hours before
Airport
DLZ · Delaware Municipal, runway 28, 4,100 × 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
63
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Seat
Front
Toxicology
Performed
Flight hours
325 total

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 10 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
CMH, 20 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.