IAD96LA121

NTSB accident investigation · Corben Baby Ace C-1 · Portsmouth, OH · July 23, 1996

Accident · Minor injuriesLimited investigationFinal report
Date
July 23, 1996, 14:30 local (18:30 UTC)
Place
Portsmouth, OH
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N75HCorben Baby Ace C-1
Weather
Visual (VMC) · Day
Status
Completed · report December 16, 1996
Report
Approved by Office Director
FAA report
19960723036239A
Case key
28088

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 inadequate preflight inspection, which resulted in a loss of engine power during the initial climb out. A related factor was the rising terrain encountered during the forced landing.

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 powerTakeoff - initial climb
Fluid,fuel - contaminationCause
Aircraft preflight - inadequatePilot in commandCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding
Terrain condition - risingFactor
Weather condition - gustsFactor

Analysis

The pilot reported that he had just purchased the ultralight aircraft, and that a new engine had recently been installed. He stated that the carburetor was examined the day before the accident, and '...it seemed to run OK.' According to the pilot, his intention was to taxi the ultralight aircraft to accumulate some hours on the engine, but a gust of wind caught the wing, and the ultralight aircraft lifted off. He stated that he decided to remain in the traffic pattern and return to land, but the engine began to sputter, then lost power. The pilot stated that during the subsequent forced landing the ultralight aircraft struck rising terrain. Postaccident examination revealed evidence of fuel contamination. The FAA Inspector reported that sludge and water were visible in the lower portion of the fuel tank, and the fuel drain was clogged.

Factual narrative

On July 23, 1996, at 1430 eastern daylight time, a Corben Baby Ace C-1 ultralight aircraft, N75H, lost engine power shortly after takeoff at Greater Portsmouth Regional Airport, in Portsmouth, Ohio. The ultralight aircraft sustained substantial damage during the forced landing. The pilot, the sole occupant, received minor injuries. Visual meteorological conditions prevailed and a flight plan was not filed. The local flight was conducted under 14 CFR Part 91. The flight originated at Portsmouth, Ohio, at approximately 1428.

The pilot reported that he had just purchased the ultralight aircraft, and a new engine had been installed. He stated that the engine "...had trouble cutting out..." so he had a mechanic examine the carburetor. He stated that "...it seemed to run OK." The pilot reported that he intended to taxi the ultralight aircraft to accumulate engine time. He stated, "I didn't really mean to take it up...[but a] gust of wind..." caught the wing and the ultralight aircraft lifted off. He stated that he decided to go around the traffic pattern, but as the ultralight aircraft approached the airport boundary, the engine sputtered, then lost power. The pilot stated that during the subsequent forced landing the landing gear and propeller struck an embankment.

The ultralight aircraft was examined by a Federal Aviation Administration (FAA) Inspector after the accident. The FAA Inspector stated that when he examined the fuel tank, he observed sludge and water in the lower portion of the tank. The FAA Inspector reported that it was not possible to drain the fuel out of the fuel drain due to a clogged fuel drain. Further postaccident examination revealed no evidence of preimpact mechanical malfunction.

Aircraft

Registration
N75H
Reported as
Corben Baby Ace C-1
Category
Ultralight, amateur-built
Serial number
1
Engine
Volkswagen, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Sheridan P Sizemore
Airworthiness certificate
Special, Experimental (Special)
Departed
PMH
Airport
PMH · Greater Portsmouth Region, runway 18, 4,996 × 100 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
73
Certificate
Student
Medical
Expired
Seat
Center
Flight hours
1,400 total

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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