GAA20CA031

NTSB accident investigation · Ercoupe 415 · Alvin, TX · October 17, 2019

Accident · No injuriesData collectionFinal report
Date
October 17, 2019, 10:12 local (15:12 UTC)
Place
Alvin, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2585HErcoupe 415
Defining event
Enroute: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report May 21, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20191017023729A
Case key
100448

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 improper fuel planning, which resulted in fuel exhaustion, a total loss of engine power, and an off-airport landing, during which the airplane landed hard and then ground looped.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelEngineering & Research ERCOUPE 415-C: 2 casesAll aircraft: 1,695 casesProbable cause
Object/animal/substance: poleEnvironmental issues › Physical environment · Effect on operationEngineering & Research ERCOUPE 415-C: 1 caseAll aircraft: 142 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 reported that, before departure, he fueled the airplane to full capacity (24 gallons). He added that, about 3 hours 36 minutes into the flight, upon descending to 2,000 ft, the engine began to run roughly. He reported that, for about 5 minutes, the engine fluctuated between running roughly and intermittently before quitting entirely. He decided to land in a subdivision. During the "high speed flare," he observed the left wing was approaching a light pole, so he "drove the yoke right." The airplane landed hard, and he applied hard braking. The right wheel hit the curb, and the right wing impacted a fence. He saw another light pole and added left yoke input. The airplane ground looped to the left. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration inspector reported that he examined the fuel tanks and found no visible signs of fuel.

Factual narrative

The pilot reported that, prior to departure, he fueled the airplane to full capacity (24 gallons). He added that, about 3 hours and 36 minutes into the flight, upon descending to 2,000 ft, the engine began to run rough. He reported that over the span of about 5 minutes, it fluctuated between running rough and intermittent before quitting entirely. He decided to land in a subdivision. During the "high speed flare", he observed the left wing was approaching a light pole, so he "drove the yoke right." The airplane landed hard and he applied hard braking. The right wheel hit the curb and the right wing impacted a mud fence. He saw another light pole and added left yoke input. The airplane ground looped to the left. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration inspector reported that the fuel tanks were inspected upon arrival and there were no visible signs of fuel.

Aircraft

Registration
N2585H
Reported as
Ercoupe 415 (C)
Category
Airplane
Serial number
2721
Built
1946
Airframe hours
3,021.6
Engine
Continental A&C75, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 1, 2019
Departed
SOA · Sonora, TX
Destination
LVJ · Houston, TX
Equipment
Electronic flight bag or handheld device

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
65
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Sport pilot
Last flight review
October 2, 2019
Seat
Left
Restraint
Lap only
Flight hours
314.8 total · 62.4 in this make and model · 314.8 as pilot in command · 20.2 in the last 90 days · 20.2 in the last 30 days · 3.5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 50 °F
Altimeter
30.05 inHg
Observed at
KLVJ, 5 nm away

Docket · 3

The files NTSB released with the investigation on December 20, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 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.