ERA09CA012

NTSB accident investigation · Cessna 177 · Bluffton, SC · October 10, 2008

Accident · Minor injuriesData collectionFinal report
Date
October 10, 2008, 18:13 local (22:13 UTC)
Place
Bluffton, SC
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N3495TCessna 177
Defining event
Enroute-descent: Fuel exhaustion
Weather
Instrument (IMC) · Dusk
Status
Completed · report January 22, 2009
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20081010857009A
Case key
69267

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 planning and preflight inspection.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Planning/preparation: fuel planningPersonnel issues › Task performance · PilotCessna 177: 12 casesAll aircraft: 719 casesProbable cause
Inspection: preflight inspectionPersonnel issues › Task performance · PilotCessna 177: 4 casesAll aircraft: 551 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelCessna 177: 13 casesAll aircraft: 1,695 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot of a Cessna 177 stated that he planned to fly about 4 hours and 15 minutes without refueling. He estimated the airplane would consume about 8 gallons-per-hour, resulting in a total consumption of 34.4 gallons of fuel, which would leave 13.6 gallons remaining in the 48-gallon fuel system. About 4 hours into the flight, on approach to the destination airport, while flying at 1,300 feet above mean sea level, the engine "sputtered." He turned on the auxiliary fuel pump and subsequently the engine quit. While on the final leg of the approach, the airplane collided with power lines, a tree, and then impacted the ground, damaging the firewall. A Federal Aviation Administration inspector examined the wreckage and stated that the left wing spar was also damaged. The left fuel tank was breeched and the right fuel tank remained intact, but there was no evidence of fuel in the tank or near the accident site. In a written statement by the air traffic controller providing radar service to the accident flight, the pilot stated that he was "out of fuel." Prior to departure, the pilot requested the fuel tanks be "topped off;" however, he did not inspect the fuel tanks during his preflight inspection to verify they were full. The fixed base operator reported that they put 36.4 gallons of fuel into the airplane. About 90 minutes into flight, the pilot increased the mixture to "rich" to alleviate a rough running engine. Prior to the accident flight, the pilot did not report any mechanical malfunctions with the airplane.

Factual narrative

The pilot of a Cessna 177 stated that he planned to fly about 4 hours 15 minutes without refueling. He estimated the airplane would consume about 8 gallons-per-hour, resulting in a total consumption of 34.4 gallons of fuel, which would leave 13.6 gallons remaining in the 48-gallon fuel system. About 4 hours into the flight, on approach to the destination airport, while flying at 1,300 feet above mean sea level, the engine "sputtered." He turned on the auxiliary fuel pump and subsequently the engine quit. While on the final leg of the approach, the airplane collided with power lines, a tree, and then impacted the ground, damaging the firewall. A Federal Aviation Administration inspector examined the wreckage and stated that the left wing spar was also damaged. The left fuel tank was breeched and the right fuel tank remained intact, but there was no evidence of fuel in the tank or near the accident site. In a written statement by the air traffic controller providing radar service to the accident flight, the pilot stated that he was "out of fuel." Prior to departure, the pilot requested the fuel tanks be "topped off;" however, he did not inspect the fuel tanks during his preflight inspection to verify they were full. The fixed base operator reported that they put 36.4 gallons of fuel into the airplane. About 90 minutes into flight, the pilot increased the mixture to "rich" to alleviate a rough running engine. Prior to the accident flight, the pilot did not report any mechanical malfunctions with the airplane.

Aircraft

Registration
N3495T
Reported as
Cessna 177
Category
Airplane
Serial number
17700795
Airframe hours
3,300
Engine
Lycoming O-320-E2D, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 5, 2008
Departed
MGY · Dayton, OH
Destination
HXD · Hilton Head, SC
Airport
HXD · Hilton Head Airport

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
41
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
August 24, 2008
Seat
Left
Flight hours
253 total · 230 in this make and model · 7 in the last 90 days · 5 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Dusk
Wind
Calm
Visibility
9 statute miles
Lowest ceiling
800 ft broken
Temperature
72 °F, dew point 70 °F
Altimeter
30.03 inHg
Observed at
HXD, 7 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 N3495T · 1

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