LAX95LA176

NTSB accident investigation · Knapp Packard Special · Wheaton Springs, CA · April 30, 1995

Accident · FatalLimited investigationFinal report
Date
April 30, 1995, 10:25 local (17:25 UTC)
Place
Wheaton Springs, CA
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N55851Knapp Packard Special
Weather
Visual (VMC) · Day
Status
Completed · report November 6, 1995
Report
Approved by Office Director
FAA report
19950430009879A
Case key
29084

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 pilot's misjudged altitude and landing flare timing which resulted in a hard landing and nose over.

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.

Hard landingLanding - flare/touchdown
Altitude - misjudgedPilot in commandCause
Flare - delayedPilot in commandCause
Lack of recent experiencePilot in commandFactor
Gear collapsedLanding - flare/touchdown
Landing gear,main gear - overload
Nose overLanding - roll

Analysis

Witnesses reported seeing the aircraft over a dry lake bed at 20 feet AGL. The aircraft then descended abruptly and impacted in nose-low attitude. After impact, the aircraft nosed over and skidded about 150 feet before coming to rest in an inverted position. A postcrash inspection of the aircraft revealed both main landing gear had been spread to the point of failure. The pilot told associates that he was having difficulty in judging his height above touchdown. The area of the accident site is flat without trees, foliage, or ground objects. The pilot had only recently resumed flying after 17 years of inactivity. FAA inspectors reported that the pilot's first flight since 1978 was on April 3, 1995. Between April 3 and 7, he received instruction and a biennial flight review in a Cessna 205 equipped with tricycle landing gear. During that period he logged a total of 8.9 hours. His estimated total time in the accident aircraft was 10 hours.

Factual narrative

On April 30, 1995, at 1025 Pacific daylight time, a home-built experimental Knapp Packard Special aircraft, N55851, sustained substantial damage during a hard landing at Wheaton Springs, California. The aircraft was owned and operated by the pilot and was on a local solo flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The certificated commercial pilot sustained fatal injuries. The flight originated from the Jean airport, Jean, Nevada, at 1000 on the day of the accident.

Witnesses reported seeing the aircraft on a 180-degree heading over the Ivanpah Dry Lake Bed at approximately 20 feet agl. The aircraft was next observed descending abruptly and impacting the lake bed in a nose-low attitude. After impact, the aircraft nosed over and skidded approximately 150 feet before coming to rest in an inverted position. A postcrash inspection of the aircraft by Federal Aviation Administration (FAA) airworthiness inspectors revealed both main landing gear had been spread to the point of failure.

A witness stated that the pilot had previously reported having difficulty in judging his height above touchdown. The area of the accident site is flat without trees, foliage, or ground objects. The pilot's medical certificate required that he wear glasses; the coroner's investigator reported the pilot was found wearing prescription eyeglasses and a cloth-type helmet with goggles.

The pilot had recently begun actively flying again after approximately 17 years of inactivity. FAA inspectors reported that the pilot had a total of 596 flight hours prior to April 3, 1995. His last flight prior to that date was on March 26, 1978, when he flew 3 hours in an Aircoupe. Between April 3 and 7, 1995, he received instruction and a biennial flight review in a Cessna 205 equipped with tricycle landing gear. During that period he logged a total of 8.9 hours. Based on information provided by insurance investigators, it was estimated that the pilot had flown the accident airplane a total of 10 hours prior to the accident.

The San Bernardino County Coroner reported the results of a toxicological examination were negative. The coroner's investigator also reported the pilot's seat and shoulder harness were found buckled.

Aircraft

Registration
N55851
Reported as
Knapp Packard Special (PACKARD SP)
Category
Airplane, amateur-built
Serial number
7017B-431
Airframe hours
10
Engine
Fairchild RANGER, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Herschel John Knapp
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · January 17, 1995 · 10 hours before
Departed
0L7 · Jean, NV

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
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Toxicology
Performed
Flight hours
605 total · 10 in this make and model · 18 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 18 knots, gusting 25
Visibility
50 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 46 °F
Altimeter
29.00 inHg
Observed at
DAG, 104 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.