CHI93LA325

NTSB accident investigation · Cessna 152-II · Keokuk, IA · August 17, 1993

Accident · No injuriesLimited investigationFinal report
Date
August 17, 1993, 16:45 local (21:45 UTC)
Place
Keokuk, IA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N47716Cessna 152-II
Weather
Visual (VMC) · Day
Status
Completed · report August 17, 1994
Report
Approved by Office Director
FAA report
19930817029669A
Case key
9283

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 an exhaust valve failure. A factor related to the accident is the power line.

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) - mech failure/malfTakeoff - initial climb
Engine assembly,valve,exhaust - failure,totalCause
Forced landingDescent - emergency
Loss of control - in flightDescent - emergency
Object - wire,transmissionFactor
Airspeed - not maintainedPilot in command
Stall - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The student pilot was in the traffic pattern practicing touch- and-go landings. During the climb after a touch-and-go the engine began to run rough and lose power. The student attempted to make a forced landing in a field which was ahead of him. He pulled the airplane up to avoid two power lines which were in his path, and the airplane stalled and crashed. Postaccident inspection discovered a fractured exhaust valve in the number one cylinder.

Factual narrative

On August 17, 1993, about 1645 central daylight time, a Cessna 152, N47716, sustained substantial damage during a forced landing near the Keokuk Municipal Airport, Keokuk, Iowa, following a loss of engine power. The student pilot was not injured. The local student solo training flight was operating without a flight plan in visual meteorological conditions.

The student pilot reported the engine began to lose power and run rough during the initial climb following a touch-and-go landing. During the forced landing the student said he pulled the airplane up to avoid two power lines, and the airplane stalled and crashed.

The engine was examined by an FAA Airworthiness Inspector. He found the exhaust valve in the #1 cylinder had broken, and there were two holes in the top of the cylinder.

Aircraft

Registration
N47716
Reported as
Cessna 152-II
Category
Airplane
Serial number
15283245
Airframe hours
4,100
Engine
Lycoming O-235-L2C, 110 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Lindner Aviation
Airworthiness certificate
Standard, Utility
Last inspection
100 hour · July 13, 1993 · 36 hours before

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
40
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
24 total · 24 in this make and model · 5 as pilot in command · 24 in the last 90 days · 8 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 73 °F
Altimeter
29.00 inHg
Observed at
BRL, 27 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.