FTW01LA199

NTSB accident investigation · John Greenlee X-Aircamper · Healdton, OK · August 25, 2001

Accident · No injuriesLimited investigationFinal report
Date
August 25, 2001, 07:45 local (12:45 UTC)
Place
Healdton, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N899JGJohn Greenlee X-Aircamper
Weather
Visual (VMC) · Day
Status
Completed · report April 29, 2003
Report
Approved by Office Director
Parties
FAA
FAA report
20010825023599A
Case key
53145

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 loss of engine power due to carburetor ice as a result of the pilot's failure to apply carburetor heat during the approach to land. Contributing factors were weather conditions conducive to carburetor icing conditions and the lack of suitable terrain for a forced landing.

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 powerApproach - vfr pattern - downwind
Weather condition - carburetor icing conditionsFactor
Carburetor heat - not usedPilot in commandCause
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterEmergency landing
Terrain condition - high vegetation
Terrain condition - none suitableFactor

Analysis

The pilot was on downwind at his destination airport when he experienced a "loss of power." He attempted to "glide" around to the runway, but a "significant south wind complicated the attempt." The airplane cleared trees "by inches and mushed into the ground", about 100-200 feet short of the runway. The pilot stated that he suspected carburetor ice to have caused the loss of power. According to information on a Carburetor Icing Probability Chart, and the temperature/dew point in which the airplane was operating, "serious" carburetor ice could have been present. The vintage airplane was powered by a Ford Model "A" engine.

Factual narrative

On August 25, 2001, approximately 0745 central daylight time, a John Greenlee X-Aircamper homebuilt experimental airplane, N899JG, registered to and operated by the pilot, was substantially damaged during a forced landing following a loss of engine power while in the VFR approach pattern to the Healdton Municipal Airport, near Healdton, Oklahoma. The private pilot, who was the sole occupant, was not injured. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The cross-country flight originated from Bowie, Texas, at 0645, and was en route to Healdton, Oklahoma.

According to information provided by the pilot in the enclosed Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), the pilot was on downwind at Healdton Airport when he experienced a "loss of power." He attempted to "glide" around to the runway, but a "significant south wind complicated the attempt." The airplane cleared trees "by inches and mushed into the ground", about 100-200 feet short of the runway.

The pilot stated that he suspected carburetor ice to have caused the loss of power. According to information on a Carburetor Icing Probability Chart, and the temperature/dewpoint in which the airplane was operating, a "serious icing" probability could have existed.

The vintage airplane was powered by a Ford Model "A" engine.

Aircraft

Registration
N899JG
Reported as
John Greenlee X-Aircamper
Category
Airplane, amateur-built
Serial number
101
Airframe hours
19
Engine
Ford Model A, 40 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John Greenlee
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 7, 2000 · 19 hours before
Departed
0F2 · Bowie, TX
Destination
F32 · Healdton, OK

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
Injuries
None
Certificate
Private
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
99 total · 19 in this make and model · 73 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 7 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 72 °F
Altimeter
29.97 inHg
Observed at
ADM

FAA reports on this event · 1

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