ATL98LA032

NTSB accident investigation · Via Aero Comp AC6 · Rockledge, FL · January 17, 1998

Accident · FatalLimited investigationFinal report
Date
January 17, 1998, 17:15 local (22:15 UTC)
Place
Rockledge, FL
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N656ACVia Aero Comp AC6
Weather
Visual (VMC) · Day
Status
Completed · report February 15, 2001
Report
Approved by Office Director
FAA report
19980117000389A
Case key
3960

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 loss of engine power for undetermined reasons. A factor was the trees in the emergency landing area.

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(partial) - nonmechanicalCruise - normal
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Object - tree(s)Factor

Analysis

About forty-five minutes into the flight, several witnesses reported hearing and seeing the airplane before the accident. Witness accounts of the airplane ranged from hearing the engine sputtering to no interruption in engine power. Witnesses reported that the airplane collided with a tree and burst into flames. An examination of the accident site disclosed that wreckage debris was scattered over an area 55 feet wide and 80 feet long. The aircraft impacted the ground in a 60 to 70 degree nose low attitude. Further examination of the accident site disclosed that airplane collided with a tree along the wreckage path prior to the airplane's collision with the ground. The wreckage examination also disclosed that the entire airframe was fire damaged and the composite material, of which the airplane was constructed, was melted. Examination of the airplane failed to disclose a mechanical problem. Examination of the engine assembly also failed to disclose any pre-existing mechanical problems that would have prevented normal operation.

Factual narrative

On January 17, 1998, at 1715 eastern standard time, a Via Inc., Aero Comp AC6, N656AC, collided with trees and burst into flames while maneuvering near Rockledge, Florida. The personal flight operated under the provisions of Title 14 CFR Part 91 with no flight plan filed. A review of weather data recovered from the nearest reporting facility disclosed that visual weather conditions prevailed at the time of the accident. The airplane was destroyed, and there was a post-impact fire. The airline transport rated pilot and his passenger were fatally injured. The flight departed Merritt Island, Florida, at 1610 EST.

According to one of the previous partners of the airplane, the pilot was preparing the airplane for a flight to South America when the accident occurred. The airplane had been flown several times earlier in the day without no apparent problem. The partner stated that the airplane had about 70 gallons of fuel on board when they departed. About forty-five minutes into the flight, several witnesses reported hearing and seeing the airplane before the accident. Witness accounts of the airplane ranged from hearing the engine sputtering to no interruption in engine power. Witnesses reported that the airplane collided with a tree and burst into flames.

An examination of the accident site disclosed that wreckage debris was scattered over an area 55 feet wide and 80 feet long. The aircraft impacted the ground in a 60 to 70 degree nose low attitude. Further examination of the accident site disclosed that airplane collided with a tree along the wreckage path prior to the airplane's collision with the ground. The engine was separated from the airframe and was located beyond the airplane's impact point with the ground. The airplane flight control cables and surfaces were located in the immediate vicinity of the airplane wreckage. The wreckage examination also disclosed that the entire airframe was fire damaged and the composite material, of which the airplane was constructed, was melted. Examination of the airplane failed to disclose a mechanical problem.

Examination of the engine assembly also failed to disclose any pre-existing mechanical problems that would have prevented normal operation (see attached report of engine examination).

According to a co-owner of the airplane, he believed that the pilot and the son of the designer/owner of the airplane were checking the accuracy of the fuel quantity system when the accident occurred. He also stated that N656AC, was originally built with an extended range fuel system. The extended range fuel tank was simply accomplished by moving the fuel tank bulkhead further outboard from the wing root. The wet wing fuel system employed a simple left/right and off fuel selector system.

An autopsy on the pilot was conducted on January 18, 1998, by Dr. Paul O. Vasallo at the Brevard County Medical Examiner's office in Rockledge, Florida. The toxicological examinations disclosed that 27.000 mg/dl, ethanol and 97.000 mg/dl ethanol were discovered in kidney and muscle samples respectively. According to the FAA Manager of the toxicology and Accident Research Laboratory, the levels of ethanol found were consistent with postmortem production. Diliazem was also found in the same samples. Diliazem is an anti-hypertensive medication. A review of the pilot's last medical application disclosed that he had reported treatment for high blood pressure.

Aircraft

Registration
N656AC
Reported as
Via Aero Comp AC6 (AERO COMP)
Category
Airplane, amateur-built
Serial number
96125
Airframe hours
67
Engine
Lycoming TIO-540-AF1A, 270 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Via Inc Of Merritt Island
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · February 18, 1997 · 67 hours before
Departed
COI · Merritt Island, FL

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
69
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
34,700 total

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 46 °F
Altimeter
30.00 inHg
Observed at
MLB, 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.