ERA11CA488

NTSB accident investigation · American Champion 8KCAB · Leesburg, VA · September 10, 2011

Accident · No injuriesData collectionFinal report
Date
September 10, 2011, 09:45 local (13:45 UTC)
Place
Leesburg, VA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Standing
Aircraft
N878ACAmerican Champion 8KCAB
Defining event
Standing-engine(s) start-up: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 8, 2012
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
Case key
81790

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 did not follow the engine start checklist.

Findings · 1

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.

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 he went through the normal pre-flight and engine start checklist. To start the engine, he performed the following steps: mixture set full on (rich), fuel pump turned on for about 3 seconds (then off), mixture full off, throttle full open, and starter engaged. The engine started, and he pushed the mixture full on. The engine went to full power, and the airplane nosed down onto the taxiway, which resulted in the propeller striking the ground and the airplane’s firewall sustaining substantial damage. The pilot stated that, after review of the situation, it was apparent that he had not followed the starting checklist accurately in that the throttle should have been set to 1/2-inch open for starting instead of full open. He also stated that he should have placed his hand on the throttle immediately after the mixture control was pushed full on in order to retard the throttle after the engine started.

Factual narrative

The pilot stated that the airplane was in front of the hangar on the taxiway. He went through the normal pre-flight and engine start checklist. Prior to engine start, the mixture was set full rich, fuel pump set on for about 3 seconds (then off), then mixture full off, throttle at full open, and then the starter was engaged. The engine started and mixture was pushed full on. During startup, the engine went to full power, the aircraft pitched over onto the taxiway resulting in the propeller striking the ground and the airplane’s firewall incurring substantial damage. The engine was then secured and he exited the airplane uninjured. The airplane was place back onto its tail wheel and secured back into the hanger. The pilot stated, after review of the situation, it was apparent that the starting checklist was not followed accurately in that the throttle should have been set to ½ inch open for starting instead of full open, and hand placed on the throttle immediately after the mixture control was pushed in to retard the throttle after the engine started.

Aircraft

Registration
N878AC
Reported as
American Champion 8KCAB
Category
Airplane
Serial number
878-2001
Airframe hours
2,406
Engine
Lycoming AEIO-360 SER, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal; Standard, Aerobatic
Departed
JYO · Leesburg, VA
Destination
JYO · Leesburg, VA
Airport
JYO · Leesburg Executive

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
60
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
July 23, 2011
Seat
Front
Flight hours
4,023 total · 16 in this make and model · 4 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 64 °F
Altimeter
29.95 inHg
Observed at
KJYO

Docket · 1

The files NTSB released with the investigation on January 19, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.