FTW98LA046

NTSB accident investigation · Piper PA-22-150 · Broomfield, CO · November 7, 1997

Accident · No injuriesLimited investigationFinal report
Date
November 7, 1997, 11:00 local (18:00 UTC)
Place
Broomfield, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9607DPiper PA-22-150
Weather
Visual (VMC) · Day
Status
Completed · report June 26, 1998
Report
Approved by Office Director
FAA report
19971107032679A
Case key
20481

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 directional control of the airplane during the takeoff roll, due to inadvertently stepping on the brake. A related factor was the pilot's excessive use of rudder for steering.

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 - on ground/waterTakeoff - roll/run
Brakes(normal) - improper use ofPilot in commandCause
Rudder - excessivePilot in commandFactor
Directional control - not maintainedPilot in commandCause
Nose overTakeoff - roll/run

Analysis

The pilot said he began the takeoff roll and at 25 to 30 mph, he raised the tail. The airplane 'immediately jerked to the left.' The pilot corrected with right rudder, overshot the runway centerline, and the airplane 'jerked to the left' again. The pilot aborted the takeoff, but the airplane skidded off the right side of the runway. The right landing gear collapsed, and the airplane nosed over. In an interview with the pilot, he said he 'over-corrected' and the airplane began 'fish tailing.' The right wing then contacted the ground as the aircraft swerved to the left and the airplane nosed over. The pilot said he may have inadvertently stepped on a brake, causing the loss of control.

Factual narrative

On November 7, 1997, approximately 1100 mountain standard time, a Piper PA-22-150 (converted to a PA-20), N9607D, was substantially damaged when it collided with terrain during the takeoff roll at Broomfield, Colorado. The commercial pilot and passenger were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the local flight being conducted under Title 14 CFR Part 91. The flight was originating at the time of the accident.

The pilot said he began the takeoff roll and at 25 to 30 mph, he raised the tail. The airplane "immediately jerked to the left." The pilot corrected with right rudder, overshot the runway centerline, and the airplane "jerked to the left" again. The pilot aborted the takeoff but the airplane skidded off the right side of the runway. The right landing gear collapsed and the airplane nosed over.

In an interview with the pilot, he said he "over-corrected" and the airplane began "fish tailing." The right wing then contacted the ground as the aircraft swerved to the left and the airplane nosed over. The pilot said he may have inadvertently stepped on a brake, causing the loss of control. Damage was consisted of a collapsed right main landing gear, bent left wing spar, and twisted engine cowling.

Aircraft

Registration
N9607D
Reported as
Piper PA-22-150
Category
Airplane
Serial number
22-6517
Airframe hours
3,272
Engine
Lycoming O-320-A1A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Howard D. Armstrong
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 23, 1997 · 49 hours before
Departed
BJC
Airport
BJC · Jefferson County, runway 11L, 9,000 × 100 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
64
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,659 total · 92 in this make and model · 3,126 as pilot in command · 8 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 5 knots
Visibility
60 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 27 °F
Altimeter
30.00 inHg
Observed at
BJC

FAA reports on this event · 1

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