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Aviation safety reports, made easier to study

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NTSB Report

September 25, 2007 · Langley Tri-Quickie · N33LQ

Chino, CA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
September 25, 2007
Injury Outcomes
2 injuries (2 minor injuries)
Location
Chino, CA
Aircraft
Langley Tri-Quickie
Tail Number
N33LQ
Operator
Larry L Severson
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA07CA271

The pilot stated that while taking off on Runway 26R the airplane pitched up, which resulted in a tail strike. The pilot reported that he was able to "...[get] the nose down, but [the airplane] pitched up again for another tail strike." The pilot revealed that after he "chopped the power" the airplane drifted off the runway to the left and subsequently impacted terrain with its left wing, coming to rest in an inverted position approximately 70 feet off the south side of the runway. The pilot stated that no mechanical anomalies were noted with the airplane prior to the takeoff. The pilot further stated that the airplane was equipped with a trim control (reflexor) on a push-pull cable that was mounted on the center console aft of the control stick, and operated opposite the "normal" nose up - aft, nose down - forward positions. The pilot reported that he didn't notice the trim position prior to flight and was not able to perform the required [trim] action "at a critical time." The pilot stated, "Failure to observe [the trim] position and reset [the trim] makes this accident 'pilot error.'" As a result of the impact forces both wings and canard were sheared off, the engine separated, and the fuselage was separated forward of the tail section.

NTSB Probable Cause

The premature rotation of the airplane on the takeoff roll as a result of the pilot failing the verify the elevator trim position, resulting in a loss of control and subsequent impact with terrain during an aborted takeoff.

Full Narrative

The pilot stated that while taking off on Runway 26R the airplane pitched up, which resulted in a tail strike. The pilot reported that he was able to "...[get] the nose down, but [the airplane] pitched up again for another tail strike." The pilot revealed that after he "chopped the power" the airplane drifted off the runway to the left and subsequently impacted terrain with its left wing, coming to rest in an inverted position approximately 70 feet off the south side of the runway. The pilot stated that no mechanical anomalies were noted with the airplane prior to the takeoff. The pilot further stated that the airplane was equipped with a trim control (reflexor) on a push-pull cable that was mounted on the center console aft of the control stick, and operated opposite the "normal" nose up - aft, nose down - forward positions. The pilot reported that he didn't notice the trim position prior to flight and was not able to perform the required [trim] action "at a critical time." The pilot stated, "Failure to observe [the trim] position and reset [the trim] makes this accident 'pilot error.'" As a result of the impact forces both wings and canard were sheared off, the engine separated, and the fuselage was separated forward of the tail section.

Flight

Event TypeAccident
Event Time09:00 PDT
Nearest AirportChino Airport (0nm)
Runway26R
Runway Length4858 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo

Aircraft

AircraftLangley Tri-Quickie
Tail NumberN33LQ
Aircraft CategoryAir
DamageSubstantial
OperatorLarry L Severson
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRevmaster · 2100D · Reciprocating

People & Injuries

Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 67 · Third Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility6 sm
CeilingNone
Temperature / Dew Point55
Altimeter30.04 inHg
Observation Time23:53
Weather SourceWFAC

Appendix: Source Data