ANC05CA092

NTSB accident investigation · Sweeney Preceptor Ultra Pup · Chitina, AK · July 4, 2005

Accident · No injuriesData collectionFinal report
Date
July 4, 2005, 15:00 local (23:00 UTC)
Place
Chitina, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N106TBSweeney Preceptor Ultra Pup
Weather
Visual (VMC) · Day
Status
Completed · report October 27, 2005
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20050704017279A
Case key
61908

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

The pilot's failure to abort the takeoff, and his premature lift-off resulting in a stall due to inadequate airspeed. The pilot's selection of unsuitable terrain for takeoff was a contributing factor.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightTakeoff - initial climb
Terrain condition - grass
Aborted takeoff - not performedPilot in commandCause
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandFactor
Airspeed(vs) - not maintainedPilot in commandFactor
Stall/mush - inadvertentPilot in commandFactor
In flight collision with objectDescent - uncontrolled
Object - tree(s)

Analysis

The commercial certificated pilot reported he was taking off in a homebuilt airplane from a grass airstrip. He stated that the airplane did not accelerate as quickly as anticipated due to the matted, grassy runway surface, and he elected to "pull the airplane into the air." The airplane was unable to maintain flying speed, and settled into trees off the departure end of the airstrip. There were no injuries to the pilot or sole passenger. The wings and fuselage of the airplane sustained structural damage.

Factual narrative

On July 4, 2005, about 1500 Alaska daylight time, a tailwheel-equipped experimental Sweeney Preceptor Ultra Pup airplane, N106TB, sustained substantial damage when it impacted trees, following an uncontrolled descent during takeoff initial climb from a private airstrip, 10 miles east of Chitina, Alaska. The airplane was being operated by the pilot as a visual flight rules (VFR) personal cross-country flight under Title 14, CFR Part 91, when the accident occurred. The commercial certificated pilot and sole passenger were not injured. Visual meteorological conditions prevailed, and no flight plan was filed.

In a written statement to the National Transportation Safety Board (NTSB) received July 13, the pilot wrote that due to the condition of the grass airstrip, the airplane did not accelerate as fast as he had anticipated, and he elected to "pull the airplane off the ground." He reported that as the airplane attempted to climb he tried to make a left turn toward open ground, but the airplane settled into trees.

Aircraft

Registration
N106TB
Reported as
Sweeney Preceptor Ultra Pup
Category
Airplane, amateur-built
Serial number
1
Engine
VW 2180CC, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Stanley Bernard
Registered owner
Stanley E. Bernard
Airworthiness certificate
Special, Experimental (Special)
Departed
Chitina, AK
Destination
0AK1 · Anderson Lake, AK

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
59
Certificate
Commercial
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3
Flight hours
1,175 total · 5 in this make and model · 49 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.