DEN06CA030

NTSB accident investigation · Appel Mustang II · Erie, CO · January 6, 2006

Accident · No injuriesData collectionFinal report
Date
January 6, 2006, 12:30 local (19:30 UTC)
Place
Erie, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N747MDAppel Mustang II
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 2006
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20060106000319A
Case key
63058

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 inadequate preflight decision to depart in gusty winds, and the pilot's failure to maintain direction control during the departure roll. The high gusty crosswind contributed to the accident.

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
Directional control - not maintainedPilot in commandCause
Weather condition - gustsFactor
Preflight planning/preparation - inadequatePilot in commandCause
Weather condition - crosswindFactor
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - ground
Nose overTakeoff - roll/run
Terrain condition - ground

Analysis

The pilot said he was attempting to depart from runway 33 when he encountered a gust of wind. The airplane veered to the left and departed the runway. The nose wheel got stuck in the soft dirt and the airplane nosed over, causing substantial damage. The winds were reported as 300 degrees at 20 knots, gusting to 30 knots.

Factual narrative

The pilot said he was attempting to depart from runway 33 when he encountered a gust of wind. The airplane veered to the left and departed the runway. The nose wheel stuck in the soft dirt and the airplane nosed over. The cowling was torn off, the firewall was wrinkled, the canopy and "roll bar" were bent and broken, the vertical stabilizer was crushed down 90 degrees at midspan, and the right wing tip was bent up.

According to the METAR (routine aviation weather report) taken at Jefferson County Airport, 7 nautical miles southwest of the accident location, winds were reported as 300 degrees at 20 knots, gusting to 30 knots.

Aircraft

Registration
N747MD
Reported as
Appel Mustang II
Category
Airplane, amateur-built
Serial number
71-1
Airframe hours
831
Engine
Lycoming O-320-E2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · August 1, 2005
Departed
48V · Erie, CO
Destination
SAF · Santa Fe, NM
Flight plan
VFR
Airport
48V · Tri-County, runway 33, 4,700 × 60 ft, concrete

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
50
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
April 1, 2005
Seat
Left
Flight hours
464 total · 21 in this make and model · 368 as pilot in command · 21 in the last 90 days · 13 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 20 knots, gusting 30
Visibility
60 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 5 °F
Altimeter
30.22 inHg
Observed at
BJC, 7 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.