ATL95LA123

NTSB accident investigation · Knosp Corbin JR. ACE-E · Whiteville, NC · July 1, 1995

Accident · Minor injuriesLimited investigationFinal report
Date
July 1, 1995, 13:40 local (17:40 UTC)
Place
Whiteville, NC
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N74RKKnosp Corbin JR. ACE-E
Weather
Visual (VMC) · Day
Status
Completed · report October 13, 1995
Report
Approved by Office Director
FAA report
19950701015979A
Case key
3584

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

Contamination of the fuel system which resulted in fuel starvation and a total loss of engine power. .

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 power(total) - mech failure/malfCruise
Fuel system,filter - blocked(total)Cause
Fuel system,gascolator - contamination,other than waterCause
Fuel system,line - contamination,other than waterCause
Fluid,fuel - starvationCause
Forced landingEmergency descent/landing
Nose overLanding - roll
Terrain condition - softFactor

Analysis

While en route to rockingham, north carolina, the aircraft experienced a gradual loss of engine power. The condition deteriorated to the point where the pilot was forced to execute an emergency landing in a field. The aircraft touched down in soft dirt and nosed over. An examination of the fuel system found rust contamination in the fuel tanks, fuel lines and gasolator. The pilot had purchased the aircraft just prior to the flight. He had flown the aircraft once before he purchased it, and had experienced no problems with the aircraft. The previous owner stated that the aircraft had been sitting for a long period of time with a minimal amount of fuel in the tanks. The pilot refueled the aircraft after purchase, and found no contamination when the fuel tank sumps were drained before the accident flight.

Factual narrative

On July 1, 1995, at 1340 eastern daylight time, a Knosp Corbin Jr. Ace-E, N74RK, nosed over in a soft field during an emergency landing, after a loss of engine power, near Whiteville, North Carolina. The personal flight operated under the provisions of 14 CFR Part 91, with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane sustained substantial damage, and the pilot received minor injuries. The flight departed Southport, North Carolina, at 1300 hours.

The pilot purchased the aircraft just prior to the flight. He had flown the aircraft before purchasing it, and had not experienced any problems with the aircraft. According to the pilot, the airplane was refueled, after he purchased it, with 10 gallons of 100 low lead fuel. He sumped the fuel during preflight, and found no fuel contamination. About 30 minutes into the flight, the pilot noticed a gradual loss of engine power. The condition deteriorated to the point where the pilot was forced to land. The pilot selected an open field for the emergency landing. The airplane touched down in the soft dirt and nosed over.

An examination of the aircraft fuel system revealed rust particles in the fuel. The gasolator bowl was removed. Sludge and rust was found at the bottom of the bowl. After cleaning the fuel system and lines of rust, an engine run was performed. All systems operated normally. No mechanical malfunction was found.

According to the previous owner of the aircraft, he allowed it to sit for a long period of time with a low amount of fuel in the tanks, prior to the current owner's purchase of the aircraft. The aircraft was within its annual inspection.

Aircraft

Registration
N74RK
Reported as
Knosp Corbin JR. ACE-E (CORBIN JR.)
Category
Airplane, amateur-built
Serial number
6772
Airframe hours
125
Engine
Continental A75, 75 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Michael K. Melvin
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · February 2, 1995 · 5 hours before
Departed
SUT · Southport, NC
Destination
NC01 · Greensboro, NC
Airport
CPC · Columbus 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
45
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
99 total · 2 in this make and model · 99 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 10 knots
Visibility
10 statute miles
Lowest ceiling
25,000 ft broken
Temperature
86 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
ILM, 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.