WPR10CA428

NTSB accident investigation · Holmgreen John B RV8A · Carlsbad, CA · August 1, 2010

Accident · No injuriesData collectionFinal report
Date
August 1, 2010, 16:00 local (23:00 UTC)
Place
Carlsbad, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N525JHHolmgreen John B RV8A
Defining event
Takeoff: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed · report January 7, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20100801044019A
Case key
77085

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 inadequate pretakeoff checks and failure to maintain control during the takeoff roll. Contributing to the accident was the pilot’s diverted attention due to the open canopy.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotHolmgreen John B RV8A: 1 caseAll aircraft: 9,295 casesProbable cause
Inspection: preflight inspectionPersonnel issues › Task performance · PilotHolmgreen John B RV8A: 1 caseAll aircraft: 551 casesProbable cause
Attention/monitoring: attentionPersonnel issues › Psychological · PilotHolmgreen John B RV8A: 1 caseAll aircraft: 226 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 during the takeoff roll, at the time of rotation, the canopy started to slide rearward. As the pilot attempted to close the canopy the airplane nosed over and the propeller struck the runway, substantially damaging the airplane’s firewall. The pilot further reported that the accident could have been prevented by conducting a “second check of proper canopy closure prior to entering [the] runway.” The pilot reported no mechanical failures or malfunctions with the airframe or engine prior to the accident.

Factual narrative

The pilot reported that during the takeoff roll at the time of rotation, the canopy started to slide rearward. As the pilot attempted to close the canopy, the airplane nosed over and the propeller struck the runway substantially damaging the airplane’s firewall. The pilot further reported that the accident could have been prevented by conducting a “second check of proper canopy closure prior to entering [the] runway.” The pilot reported no mechanical failures or malfunctions with the airframe or engine prior to the accident.

Aircraft

Registration
N525JH
Reported as
Holmgreen John B RV8A
Category
Airplane, amateur-built
Serial number
81824
Airframe hours
270
Engine
Superior XP360 A1C2, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Dickson Clark
Registered owner
Moller Scott
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · November 23, 2009 · 20 hours before
Departed
CRQ · Carlsbad, CA
Destination
O61 · Cameron Park, CA
Airport
CRQ · McClellan - Palomar Airport, runway 24, 4,897 × 150 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
55
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
July 28, 2009
Seat
Front
Flight hours
372 total · 108 in this make and model · 274 as pilot in command · 8 in the last 90 days · 6 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 59 °F
Altimeter
29.89 inHg
Observed at
CRQ

Docket · 3

The files NTSB released with the investigation on September 28, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 736 KB 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.