ATL97LA074

NTSB accident investigation · Piper PA-28-151 · Sophia, NC · May 22, 1997

Accident · No injuriesLimited investigationFinal report
Date
May 22, 1997, 17:45 local (21:45 UTC)
Place
Sophia, NC
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8392CPiper PA-28-151
Weather
Visual (VMC) · Day
Status
Completed · report January 30, 1998
Report
Approved by Office Director
FAA report
19970522011749A
Case key
3849

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

improper maintenance performed by an unknown person, which resulted in the reduction of airflow through the engine induction system and subsequent loss of engine power. A factor related to the accident was: failure of the pilot to attain a proper touchdown point on the runway for a successful 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 power(partial) - nonmechanicalCruise - normal
Induction air control/system - blocked(partial)Cause
Maintenance - improperUnknownCause
Forced landingEmergency descent/landing
OverrunLanding
Proper touchdown point - not attainedPilot in commandCause
In flight collision with objectGo-around (vfr)
Object - tree(s)

Analysis

While flying at 3000 feet, the pilot noted a drop in engine RPM from 2200 to approximately 700. Since level flight could not be maintained, the pilot selected a nearby private airstrip and attempted an emergency landing. The airplane bounced as it touched down on the sod runway, and the pilot noticed an increase in engine rpm. He realized that he could not get the airplane down before the end of the runway; he then elected to attempt a go-around. The airplane climbed to the height of trees on the departure end of the runway and settled into the trees. Examination of the airplane disclosed that electrical tape was lodged in the carburetor induction system. The examination also disclosed that someone had wrapped black electrical tape around the flexible duct material between the induction air filter and the carburetor. A review of approved aircraft maintenance procedures failed to disclose a repair procedure that would allow the use of electrical tape to repair the air duct. A review of normal aircraft performance data disclosed that approximately 600 feet of ground roll was needed for a landing; approximately 1,200 feet of runway was needed to land over a 50 foot obstacle. The pilot reported that the sod runway was 2,070 feet long.

Factual narrative

On May 22, 1997, at 1745 eastern daylight time, a Piper PA-28-151, N8392C, collided with trees several hundred feet north of the departure end of runway 03 at the Johnson Airport in Sophia, North Carolina. The business flight operated under the provisions of Title 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane sustained substantial damage, and the pilot was not injured. The flight departed Hickory, North Carolina, at 1700.

According to the pilot, while flying at 3000 feet enroute to Raleigh, North Carolina, the engine RPM dropped from 2200 to approximately 700. Since level flight could not be maintained, the pilot selected a nearby private airstrip and attempted an emergency landing. The pilot said that the airplane bounced as it touched down on the sod runway, and he noticed an increase in engine rpm. The pilot also stated that he realized that he could not get the airplane down before the end of the runway, and decided to go around. The airplane climbed to the height of the trees, before it settled into the trees.

Examination of the airplane disclosed that electrical tape was lodged in the carburetor induction system. The engine examination also disclosed that someone had wrapped black electrical tape around the flexible duct material between the induction air filter and the carburetor. A review of the aircraft maintenance logs failed to disclose when or who performed the repair on the air duct. A review of approved aircraft maintenance procedures failed to disclose a repair procedure that would allow the use of electrical tape to repair the air duct. A review of normal aircraft performance data disclosed that approximately 600 feet of ground roll is needed for a landing; approximately 1,200 feet of runway is needed to land over a 50 foot obstacle. The pilot reported that the sod runway was 2,070 feet long.

Aircraft

Registration
N8392C
Reported as
Piper PA-28-151
Category
Airplane
Serial number
28-761501
Airframe hours
2,800
Engine
Lycoming O-320-E3D, 151 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
David M Fellman
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 31, 1997 · 60 hours before
Departed
HKY · Hickory, NC
Destination
RDU · Raleigh, NC
Airport
72A · Johnson, runway 3, 2,070 × 75 ft, grass/turf

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
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
487 total · 386 in this make and model · 420 as pilot in command · 41 in the last 90 days · 21 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 36 °F
Altimeter
30.00 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.