CEN16LA219

NTSB accident investigation · Flohr David J R 80 Tiger Moth · Decatur, TX · June 6, 2016

Accident · No injuriesLimited investigationFinal report
Date
June 6, 2016, 17:30 local (22:30 UTC)
Place
Decatur, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8CXFlohr David J R 80 Tiger Moth
Defining event
Maneuvering-low-alt flying: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report July 20, 2017
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20160606010109A
Case key
93389

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

A failure of the electric fuel boost pump, which resulted in fuel starvation and a subsequent total loss of engine power.

Findings · 2

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.

Terrain: sloped/uneven terrainEnvironmental issues › Physical environment · Contributed to outcomeFlohr David J R-80 TIGER MOTH: 1 caseAll aircraft: 270 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 airline transport pilot reported that he was flying his experimental, amateur-built airplane about 500 ft above ground level over his ranch when he smelled something burning. About 15 seconds later, the engine experienced a total loss of power, and the propeller stopped spinning. The airplane impacted a ditch and nosed over during the subsequent forced landing. A postaccident examination of the engine revealed that the inline electric boost pump had overheated and burned, which resulted in a loss of fuel supply to the engine.

Factual narrative

On June 6, 2016, about 1730 central daylight time, an amateur built Flohr David J R-80 Tiger Moth airplane, N8CX, nosed down during an off airport forced landing in Decatur, Texas, following a loss of engine power. The airline transport rated pilot was not injured. The airplane was substantially damaged. The airplane was registered to a private individual and was operated under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight and no flight plan was filed. The local flight originated from the Lazy G Bar Ranch Airport (90T), Decatur, Texas.The pilot reported he was flying at an altitude of about 500 ft above the ground over his ranch when the accident occurred. He stated he smelled something burning and about 15 seconds later, the engine lost all power and the propeller stopped spinning. The airplane hit a ditch and nosed over during the forced landing resulting in substantial damage to both lower wings. The pilot reported the previous owner of the airplane had installed a Facet 150 electric boost pump to increase the fuel flow. The pilot examined the engine after the accident and stated the inline electric boost pump overheated, burned, and shut down the fuel supply to the engine.

Aircraft

Registration
N8CX
Reported as
Flohr David J R 80 Tiger Moth (NO SERIES)
Category
Airplane, amateur-built
Serial number
TM36
Built
2005
Airframe hours
2,983
Engine
Cont Motor C90-14F, 90 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · November 29, 2015 · 15 hours before
Departed
90T · Decatur, TX
Destination
90T · Decatur, TX
Equipment
None

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
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
May 24, 2016
Seat
Rear
Restraint
4-point
Flight hours
19,000 total · 56 in this make and model · 15,000 as pilot in command · 120 in the last 90 days · 60 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 55 °F
Altimeter
29.88 inHg
Observed at
LUD, 5 nm away

Docket · 2

The files NTSB released with the investigation on May 11, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.1 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.