ERA21LA018

NTSB accident investigation · Zenith Stol CH801 · Apison, TN · October 12, 2020

Accident · No injuriesClass 4 · LimitedFinal report
Date
October 12, 2020, 17:18 local (21:18 UTC)
Place
Apison, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N801TPZenith Stol CH801
Defining event
Initial climb: Fuel starvation
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/ FSDO
FAA report
20201012016919A
Case key
102131

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

A total loss of engine power due to fuel starvation, as a result of an incorrectly placarded fuel selector.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Incorrect service/maintenanceFaulkner Thomas A ZENITH CH 801: 1 caseAll aircraft: 1,695 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 reported that the accident flight was his first flight in the experimental amateur-built airplane, and it was the first flight after a condition inspection. After an uneventful takeoff, the airplane experienced a total loss of engine power during the initial climb about 800 ft above ground level. The pilot was unable to restart the engine and subsequently performed a forced landing to a grassy clearing about 1 mile from the departure runway. During the rollout, the airplane impacted thick vegetation and trees, which resulted in substantial damage to the fuselage and wings. Postaccident examination of the airplane revealed that the left fuel tank was empty, and the right fuel tank contained about 12 gallons. Additionally, the fuel selector placards for LEFT and RIGHT were mislabeled backwards. The pilot reported that prior to takeoff, there was about 15 gallons of fuel in the right fuel tank, and “only a couple of gallons” in the left fuel tank. As a result, he placed the fuel selector toward the sticker-type placard that stated RIGHT, although the fuel selector was pointed toward the left wing. According to the pilot, the most recent condition inspection did not involve any action that would have involved the fuel selector placards. Review of past maintenance records found several instances of fuel system maintenance; however, no entry described an action about placards at the fuel selector. Therefore, the investigation was unable to identify when the fuel tanks became incorrectly placarded.

Aircraft

Registration
N801TP
Reported as
Zenith Stol CH801 (NO SERIES)
Category
Airplane, amateur-built
Serial number
4827
Built
2004
Airframe hours
183
Engine
Subaru EggenFellner H6 A/B, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Flight test · Part 91
Operator
Gospel Ministries International Inc.
Registered owner
Gospel Ministries International Inc.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · October 7, 2020 · 0 hours before
Departed
FGU · Collegedale, TN
Airport
FGU · Collegedale Municipal Airport, runway 21, 4,986 × 75 ft, asphalt
Equipment
Electronic primary flight display, Electronic multifunction display

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
59
Injuries
None
Certificates
Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
October 16, 2020
Seat
Left
Restraint
3-point
Flight hours
2,097 total · 1 in this make and model · 2,002 as pilot in command · 4 in the last 90 days · 2 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 64 °F
Altimeter
29.86 inHg
Observed at
CHA, 9 nm away

Docket · 5

The files NTSB released with the investigation on June 23, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 14.7 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.