ERA13LA276

NTSB accident investigation · Cessna 170 · Plainville, CT · June 9, 2013

Accident · No injuriesLimited investigationFinal report
Date
June 9, 2013, 09:20 local (13:20 UTC)
Place
Plainville, CT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N2585VCessna 170
Defining event
Approach-VFR pattern downwind: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed · report June 2, 2014
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20130609010009A
Case key
87131

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 overflight of the landing runway during a forced landing after a loss of engine power. Contributing to the accident was the pilot’s inadequate preflight which resulted in his failure to detect water contamination of the fuel system.

Findings · 5

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.

Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 170: 1 caseAll aircraft: 809 casesProbable cause
Fuel systemAircraft › Aircraft systems · Damaged/degradedCessna 170: 1 caseAll aircraft: 181 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid conditionCessna 170: 4 casesAll aircraft: 1,695 casesProbable cause
Inspection: preflight inspectionPersonnel issues › Task performance · PilotCessna 170: 4 casesAll aircraft: 551 casesProbable cause

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 stated that, as he reduced power, he incrementally increased the flap settings to 10, 20 and 30 degrees on the downwind leg on the west side of the runway. He added that he applied carburetor heat when he increased the flap setting to 20 degrees. At 80 mph, with 30 degrees of flaps extended and before turning to the base leg of the traffic pattern, the engine experienced a total loss of power. During the subsequent forced landing, the airplane flew from west to east across the runway, rather than turning toward the runway, and crashed in marshland on the east side of the runway abeam the numbers. The fuel system was sumped from three points, and each sample contained a significant quantity of water. The fuel system was drained, the airplane was serviced with fresh fuel, and an engine start was initiated. The engine started immediately, accelerated smoothly, and ran continuously without interruption. Examination of the seals around the fuel caps revealed that they were unserviceable, and no longer functioned as designed. Over 3 inches of rain fell between the previous flight and the accident flight and likely entered the fuel tanks through the seals around the fuel caps.

Factual narrative

On June 9, 2013, at 0920 eastern daylight time, a Cessna 170, N2585V, was substantially damaged during a forced landing following a total loss of engine power while on landing approach to Robertson Field (4B8), Plainville, Connecticut. The private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the flight, which originated from Meriden Markham Municipal Airport (MMK) Meriden, Connecticut. The personal flight was conducted under the provisions of Title 14 Code of Federal Regulations Part 91. According to the pilot, the airplane was on the left downwind leg of the airport traffic pattern for landing on Runway 02. He described as he reduced power, and incrementally increased the flap settings to 10, 20 and 30 degrees; all on the downwind leg. The pilot stated he applied carburetor heat when he increased the flap setting to 20 degrees. At 80 miles per hour, with 30 degrees of flaps extended, and prior to turning to the base leg of the traffic pattern, the engine experienced a total loss of power. The pilot stated that the airplane lacked the altitude and airspeed to glide to the runway from the point of the engine failure, and elected to land the airplane in wetlands on the east side of the runway; beyond the approach end. The pilot of another airplane in the airport traffic pattern at the time of the accident stated that his airplane was ahead of the accident airplane, on a left base for landing on runway 02, when the accident airplane appeared beneath his, and inside of his base-leg turn for the same runway. He described and diagramed how the airplane crossed the extended runway centerline from west to east, flew past and north of the approach end of the runway, and crashed in wooded wetlands east of the runway, abeam the runway numbers. The pilot held a private pilot certificate with a rating for airplane single-engine land. His most recent Federal Aviation Administration (FAA) third class medical certificate was issued in December 2012. The pilot reported 407 total hours of flight experience, 56 hours of which were in the accident airplane make and model. The airplane was recovered and examined by an FAA inspector on June 10, 2013. The fuel system was sumped from three points, and each sample contained a significant quantity of water. The fuel system was drained, the airplane was serviced with fresh fuel, and an engine start was initiated. The engine started immediately, accelerated smoothly and ran continuously without interruption. Examination of the seals around the fuel caps revealed that they were unserviceable, and no longer functioned as designed. Examination of rainfall totals revealed that over 3 inches of rain fell between the flight previous to the accident flight and the day of the accident.

Aircraft

Registration
N2585V
Reported as
Cessna 170
Category
Airplane
Serial number
18090
Airframe hours
5,739
Engine
Cont Motor C145 SERIES, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Suttmeier Robert
Registered owner
Suttmeier Robert
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 4, 2012
Departed
MMK · Meriden, CT
Destination
4B8 · Plainville, CT
Airport
4B8 · Robertson Field, runway 02, 3,665 × 75 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
71
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
407 total · 56 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 55 °F
Altimeter
30.14 inHg
Observed at
KHFC, 10 nm away

Docket · 7

The files NTSB released with the investigation on April 3, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.4 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.

Other investigations on N2585V · 1

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