SEA06LA169

NTSB accident investigation · Curtiss-Wright Travel Air C-4000 · Elmira, OR · August 27, 2006

Accident · FatalLimited investigationFinal report
Date
August 27, 2006, 14:00 local (21:00 UTC)
Place
Elmira, OR
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N6298Curtiss-Wright Travel Air C-4000
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2007
Report
Approved by Office Director
Parties
Portland FSDO
FAA report
20060827017189A
Case key
64416

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 maintain an airspeed above stall speed (Vs) while turning to avoid trees along the side of the runway during the initial climbout after takeoff. Factors include, a variable wind that became a tailwind, and trees growing near the side of the runway.

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
Airspeed(vs) - not maintainedPilot in commandCause
Stall - inadvertentPilot in command
Weather condition - variable windFactor
Weather condition - tailwindFactor
In flight collision with objectTakeoff - initial climb
Object - tree(s)Factor

Analysis

At the time the pilot took off, the winds were variable in direction and blowing between five and ten knots. During the takeoff roll, liftoff, and initial climb, the aircraft performed normally, but as it reached tree-top level, the wind shifted to a tailwind, and the aircraft stopped climbing and began to sink. At the same time, the aircraft drifted toward the side of the 60-foot wide runway, and this resulted in the pilot having to turn twice in order to avoid trees growing near the side of the runway. During the second turn, the pilot failed to maintain an airspeed above stall speed, and therefore the aircraft stalled, rolled to the left, and descended into the house. No evidence of any problem with the engine or flight controls were found during the post-accident inspection of the aircraft, and the pilot stated that he felt the engine was running fine, and that there did not seem to be any problems with the flight controls.

Factual narrative

On August 27, 2006, approximately 1400 Pacific daylight time, a Curtiss Wright Travel Air C-4000, N6298, impacted a house and two automobiles during the initial climb out after taking off from Crow-Mag Airstrip, Elmira, Oregon. The pilot received serious injuries, his passenger received fatal injuries, and the aircraft, which is owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personal pleasure flight, which was departing for Florence, Oregon, was being operated in visual meteorological conditions. No flight plan had been filed, and there was no report of an ELT activation.

According to witnesses, the aircraft, which was taking off to the north, lifted off in about 600 to 800 feet, and initially climbed straight ahead. It then started drifting to the right, and appeared to increase its pitch angle as it neared some nearby trees. Soon thereafter, the nose of the aircraft dropped, it rolled to the left, and then descended into the roof of a house. After the wing of the aircraft hit the house, it cartwheeled into the parked automobiles.

According to the pilot, at the time of the takeoff, the winds were variable in direction and blowing between five and ten knots. The pilot said that after talking with other pilots more familiar with the field then him, he decided to take off to the north. He said that during the takeoff roll, lift off, and initial climb, the aircraft appeared to perform normally, but as he reached tree-top level, the wind shifted to a tailwind, and the aircraft stopped climbing and began to sink. He said that the aircraft drifted toward the right side of the 60-foot wide runway, and this resulted in him having to turn twice to avoid trees growing near the runway. During the second turn, the airspeed of the aircraft slowed, it stalled, rolled to the left, and descended into the house.

The pilot stated that he felt the engine was running fine, and that there was no problem with the flight controls. In addition, another pilot, that owns and flies an aircraft with a similar engine, and who was standing near the runway at the time of the takeoff, said that the engine sounded like it was operating normally.

During the investigation it was determined that when the pilot landed at Crow-Mag Airstrip earlier in the day, to participate in an informal gathering of classic aircraft, he inadvertently departed the side of the runway and allowed the lower right wing of the aircraft to come in contact with a number of steel rods that where sticking out of the ground. During that sequence of events, the cloth covering on the bottom of the right wing was ripped/torn in several places. While the pilot was at the gathering, non-approved "repairs" were made to those tears (covered by duct tape), but according to the FAA Inspector who viewed the aircraft at the scene, there was no clear evidence that any of those "repairs" had failed, or that the function of the airfoil had been degraded.

Aircraft

Registration
N6298
Reported as
Curtiss-Wright Travel Air C-4000
Category
Airplane
Serial number
745
Airframe hours
5,803
Engine
Continental W670-6N, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William R. Kirk
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 2006 · 30 hours before
Departed
Elmira, OR
Destination
6S2 · Florence, OR
Airport
Crow-Mag Airstrip, runway 30, 3,200 × 60 ft, grass/turf

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
70
Injuries
Serious
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
September 1, 2004
Seat
Rear
Flight hours
4,500 total · 200 in this make and model · 4,200 as pilot in command · 30 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 5 knots, gusting 10
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F

FAA reports on this event · 1

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

Other investigations on N6298 · 1

Matched to the same aircraft by N-number and date.