ATL93LA102

NTSB accident investigation · Piper J3C-65 · Greensboro, NC · June 3, 1993

Accident · No injuriesLimited investigationFinal report
Date
June 3, 1993, 19:20 local (23:20 UTC)
Place
Greensboro, NC
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N87811Piper J3C-65
Weather
Visual (VMC) · Day
Status
Completed · report November 3, 1993
Report
Approved by Office Director
FAA report
19930603034309A
Case key
3220

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 improper use of carburetor heat during the flight. Factors were the carburetor icing conditions at the time of the accident, and trees at the forced landing site

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(partial) - nonmechanicalCruise - normal
Weather condition - carburetor icing conditionsFactor
Carburetor heat - improper use ofPilot in commandCause
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Object - tree(s)Factor

Analysis

The private pilot had leveled off at 2,000 feet MSL when the engine gradually lost power. He turned back toward the airport, but was unable to maintain altitude. He applied carburetor heat, and the engine responded; however, he could not avoid colliding with a tall tree. The airplane crashed into the top of the tree, and the pilot exited the airplane unhurt. According to carburetor icing charts, the weather conditions were conducive to the formation of carburetor ice

Factual narrative

On June 3, 1993, at about 1920 eastern daylight time, a Piper J3C-65, N87811, collided with a tree following a reported engine power loss near Greensboro, North Carolina. The private pilot was not injured in the accident. The aircraft was substantially damaged. The aircraft was operated under 14 CFR Part 91 by the pilot. Visual meteorological conditions existed at the time, and no flight plan was filed for the personal flight to a private airstrip in Caswell County, North Carolina. The flight originated at the Southeast Greensboro Airport at about 1900.

The pilot reported the following. After departing from the Southeast Greensboro Airport, he climbed to 2,000 feet mean sea level (MSL). After established in cruise flight, the engine began to gradually lose power. He initiated a turn back to the airport. He was unable to maintain level flight, and was unable to glide to the airport. During the forced landing, the airplane collided with the top of a tall tree. The aircraft remained lodged in the top of the tree, and the pilot exited the airplane.

The pilot later reported that the engine lost power due to carburetor ice. He applied carburetor heat after the loss of power, and the engine responded, however he was unable to avoid the collision with the tree.

The temperature and dew point at the time of the accident were in a regime which would be conducive to carburetor icing conditions, according to carburetor icing charts. The visibility at the time of the accident was 5 miles, with haze.

Aircraft

Registration
N87811
Reported as
Piper J3C-65
Category
Airplane
Serial number
15094
Airframe hours
2,630
Engine
Continental A-65-8, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Roberts, John K.
Registered owner
Roberts, John K.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 15, 1992 · 20 hours before
Destination
NONE · Caswell County, NC

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
45
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Rear
Flight hours
1,500 total · 600 in this make and model · 1,300 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 10 knots
Visibility
5 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 64 °F
Altimeter
29.00 inHg
Observed at
GSO, 15 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.