ERA17LA040

NTSB accident investigation · Cessna 177 · Hopkinton, RI · November 8, 2016

Accident · No injuriesLimited investigationFinal report
Date
November 8, 2016, 14:15 local (19:15 UTC)
Place
Hopkinton, RI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N30703Cessna 177
Defining event
Enroute: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed · report April 20, 2020
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20161108024599A
Case key
94354

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to accurately determine the airplane's fuel quantity before the flight, which resulted in a total loss of engine power due to fuel exhaustion.

Findings · 4

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid managementCessna 177B: 9 casesAll aircraft: 1,695 casesProbable cause
Planning/preparation: fuel planningPersonnel issues › Task performance · PilotCessna 177B: 7 casesAll aircraft: 719 casesProbable cause
Inspection: preflight inspectionPersonnel issues › Task performance · PilotCessna 177B: 3 casesAll aircraft: 551 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeCessna 177B: 5 casesAll aircraft: 933 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 private pilot planned to fly the airplane to another airport to purchase fuel. Before departing, he used a wooden stick to estimate the airplane's fuel level. While en route, the engine abruptly lost power. The pilot was unable to restart the engine and executed a forced landing to a field; the airplane struck trees, which resulted in substantial damage to the wings and fuselage. Postaccident examination of the accident site, the airplane's fuel tanks, and components of the airplane's fuel system revealed only trace quantities of fuel. Thus, it is likely that the pilot overestimated the airplane's fuel quantity before departing on the flight and that the engine lost power due to fuel exhaustion.

Factual narrative

On November 8, 2016, about 1415 eastern standard time, a Cessna 177B, N30703, was substantially damaged during a forced landing near Hopkinton, Rhode Island. The private pilot was not injured. No flight plan was filed for the flight that originated at Windham Airport (IJD), Willimantic, Connecticut, and was destined for Richmond Airport (08R), West Kingston, Rhode Island. Visual meteorological conditions prevailed for the personal flight conducted under the provisions of 14 Code of Federal Regulations Part 91. After a normal preflight inspection, the pilot departed towards the southwest for the 28 nautical mile flight to 08R. During cruise flight, about 7 nautical miles from the destination airport, the engine suddenly lost all power. The pilot attempted to restart the engine but was unsuccessful. From an altitude of 1,800 ft mean sea level, the pilot selected a field and executed a forced landing. During the landing roll, the airplane impacted two small trees before it came to rest, which resulted in substantial damage to the wings and the fuselage. The pilot stated that the purpose of the flight was to get fuel at 08R. The Federal Aviation Administration (FAA) inspector who examined the airplane before it was recovered did not observe any fuel in the intact left wing fuel tank, or the compromised right fuel tank; nor was there any blighting of the grass or any other evidence of a fuel spill. The first responders did not report any fuel leaking from the airplane; and recovery personnel removing the wings did not report any fuel present in the fuel strainer bowl when the fuel line was removed. During a subsequent exam by an FAA inspector, 12 ounces of fuel was drained from the carburetor, electric fuel pump, and fuel bowl. The fuel pump contained a few drops of residual fuel. The fuel collected was free of debris and water. The Cessna 177 Pilot Operating Handbook (POH) requires that fuel quantity be "visually checked" during preflight. According to the pilot, he "stuck" the tanks with a wooden stick prior to departing and determined there was about 3 inches of fuel from the bottom of the tank; which he determined to be about 12 total gallons of fuel, or 6 gallons of fuel per tank. He stated that the engine typically consumed about 10 gallons of fuel per hour. He planned for the flight to 08R to take about 20 to 30 minutes. The airplane had flown two previous flights before since last being fueled. The four-seat, high-wing, tricycle-gear airplane was manufactured in 1969. It was powered by Lycoming O-360, 180-horsepower engine, driving McCauley controllable pitch propeller. Its most recent annual inspection was completed November 6, 2015. The weather conditions reported at the Westerly State Airport (WST), Westerly, Rhode Island, which was located about 11 miles south of the accident site, included wind from 210° at 5 knots, visibility 10 statute miles, clear skies, temperature 15° C, dew point 3° C, and an altimeter setting of 30.05 inches ofmercury.

Aircraft

Registration
N30703
Reported as
Cessna 177 (B)
Category
Airplane
Serial number
17701412
Built
1969
Airframe hours
4,461.3
Engine
Lycoming IO-360-A1B6D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 6, 2015
Departed
IJD · Willimantic, CT
Destination
08R · West Kingston, RI
Equipment
Stall warning system, Auto-pilot

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
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
August 1, 2016
Seat
Left
Flight hours
1,517 total · 37 in this make and model · 1,480 as pilot in command · 14 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 37 °F
Altimeter
30.04 inHg
Observed at
KWST, 11 nm away

Docket · 5

The files NTSB released with the investigation on November 4, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.2 MB in all.

FAA reports on this event · 1

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