LAX93LA135

NTSB accident investigation · Downer Aircraft Industries KR-1 · Prescott, AZ · February 23, 1993

Accident · Serious injuriesLimited investigationFinal report
Date
February 23, 1993, 12:30 local (19:30 UTC)
Place
Prescott, AZ
Injuries
1 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N9HDDowner Aircraft Industries KR-1
Weather
Visual (VMC) · Day
Status
Completed · report February 10, 1994
Report
Approved by Office Director
FAA report
19930223003139A
Case key
27936

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

The total loss of engine power for undetermined reasons. A factor in the accident was the lack of a suitable landing area at the time of the power interruption.

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 powerCruise
Reason for occurrence undeterminedCause
Fuel system - improper
Exhaust system - improper
Maintenance,installation - inadequateManufacturer
Insufficient standards/requirementsManufacturer
Forced landingDescent - emergency
Terrain condition - residential areaFactor
In flight collision with terrain/waterDescent - emergency

Analysis

The experimental homebuilt had only been operated about 56 hours in the last 12 years, with the last flight prior to the accident listed in the aircraft log book as June 16, 1992. The pilot made no statement regarding the accident circumstances. Ground witnesses reported hearing and observing the aircraft descend into a residential area without any apparent engine power. FAA airworthiness inspectors examined the aircraft and reported finding many discrepancies in the aircraft system designs and installations. The fuel system consisted of a rubbermaid five gallon container connected to the engine with plastic tubing and operated by a hand wobble pump. The carburetor heat system consisted of pvc plumbing pipe held together and secured to both the engine exhaust system and the carburetor with rtv sealant. The FAA inspectors reported that the examination of the revmaster vw engine itself revealed no evidence of a mechanical malfunction. Review of FAA records revealed that the pilot's medical had expired. The pilot had held his private certificate for 40 years and had flown 290 hours in that time. The available pilot and aircraft records disclosed that the pilot had not flown in the last seven months.

Aircraft

Registration
N9HD
Reported as
Downer Aircraft Industries KR-1
Category
Airplane, amateur-built
Serial number
001
Airframe hours
56
Engine
Revmaster 2100 CC, 80 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Robert O. Woodward
Registered owner
Robert O. Woodward
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · March 24, 1992 · 6 hours before
Departed
PRC
Destination
PRC

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
70
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Seat
Center
Flight hours
290 total · 15 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 8 knots
Visibility
65 statute miles
Lowest ceiling
None
Temperature
52 °F, dew point 27 °F
Altimeter
29.00 inHg
Observed at
PRC, 10 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.

Other investigations on N9HD · 1

Matched to the same aircraft by N-number and date.