DEN06LA040

NTSB accident investigation · Piper PA-28-235 · Torreon, NM · February 20, 2006

Accident · No injuriesLimited investigationFinal report
Date
February 20, 2006, 07:20 local (14:20 UTC)
Place
Torreon, NM
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N9149WPiper PA-28-235
Weather
Visual (VMC) · Day
Status
Completed · report August 29, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20060220002259A
Case key
63257

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 NTSB’s determination of the probable cause, and any contributing factors.

The jammed magneto drive gear and the fractured camshaft gear, which resulted in the total engine failure. A factor contributing to the accident was the unsuitable dirt road on which the pilot had to force land the airplane.

Analysis

The pilot reported that "approximately 25 minutes into the flight, the engine quit - 2,350 rpm to zero rpm reading." The pilot attempted to restart the engine but the engine would not start. The pilot then executed a forced landing to a dirt road. The pilot said, "We touched down with the road veering slightly to the right and bounced once becoming airborne again. The plane yawed to the right and when I straightened the aircraft we touched down a second time left of center on the dirt road and shoulder. The bar ditch had been graded so as to drain into the field adjacent to the road. When we struck the perpendicular ditch, the nose gear gave way forcing us to a stop." An on-scene examination of the airplane showed the nose wheel broken aft, the lower cowling crushed upward, the engine and engine mounts bent upward, and the lower firewall bent upward and aft. Flight control continuity was confirmed. An examination of the airplane's engine showed the left magneto impulse coupling broken and the magneto drive gear jammed. The adjacent camshaft gear showed 4 broken teeth. Milled metal was found around the drive coupling and camshaft gear. No other anomalies were found.

Factual narrative

On February 20, 2006, approximately 0720 mountain standard time, a Piper PA-28-235, N9149W, piloted by a private pilot, was substantially damaged during a forced landing on a dirt road, 12 miles southeast of Torreon, New Mexico. Visual meteorological conditions prevailed at the time of the accident. The personal flight was operating without a flight plan under the provisions of Title 14 CFR Part 91. The pilot and 3 passengers on board the airplane were not injured. The cross country flight originated at Santa Fe, New Mexico approximately 0650 and was en route to Crownpoint, New Mexico.

The pilot reported that "approximately 25 minutes into the flight, the engine quit - 2,350 rpm to zero rpm reading." The pilot attempted to restart the engine but the engine would not start. The pilot then executed a forced landing to a dirt road. The pilot said, "We touched down with the road veering slightly to the right and bounced once becoming airborne again. The plane yawed to the right and when I straightened the aircraft we touched down a second time left of center on the dirt road and shoulder. The bar ditch had been graded so as to drain into the field adjacent to the road. When we struck the perpendicular ditch, the nose gear gave way forcing us to a stop."

An on-scene examination of the airplane showed the nose wheel broken aft, the lower cowling crushed upward, the engine and engine mounts bent upward, and the lower firewall bent upward and aft. Flight control continuity was confirmed.

The airplane's engine was examined at Greeley, Colorado on April 21, 2006. The examination showed the left magneto impulse coupling broken and the magneto drive gear jammed. The adjacent camshaft gear showed 4 broken teeth. Milled metal was found around the drive coupling and camshaft gear. No other anomalies were found.

The airplane had undergone an annual inspection on July 16, 2005. The airframe time at the annual inspection was 4,173 hours. The airframe time at the time of the accident was 4,214 hours. The time since the last engine overhaul was 998 hours.

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 engine power(total) - mech failure/malfCruise
Ignition system,magneto - jammedCause
Ignition system,magneto - fractured
Engine assembly,camshaft - fracturedCause
Forced landingEmergency descent/landing
Remedial action - attemptedPilot in command
On ground/water encounter with terrain/waterLanding
Unsuitable terrain or takeoff/landing/taxi area - encounteredFactor
Terrain condition - roadway/highway
Terrain condition - ditch

Aircraft

Registration
N9149W
Reported as
Piper PA-28-235
Category
Airplane
Serial number
28-10775
Airframe hours
4,214
Engine
Lycoming O-540-B4B5, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Robert D. Tcherneshoff
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 2005
Departed
SAF · Santa Fe, NM
Destination
0E8 · Crownpoint, NM

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
42
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
December 1, 2004
Seat
Left
Flight hours
643 total · 520 in this make and model · 561 as pilot in command · 2 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
28 °F, dew point 10 °F
Altimeter
30.03 inHg
Observed at
SAF, 56 nm away

FAA reports on this event · 1

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