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Aviation safety reports, made easier to study

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NTSB Report

March 15, 1994 · Cessna 152 · N95010

Lebanon, TN

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
March 15, 1994
Injury Outcomes
No injuries (2 uninjured)
Location
Lebanon, TN
Aircraft
Cessna 152
Tail Number
N95010
Operator
Smyrna Flight Academy
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL94LA064

THE CERTIFIED FLIGHT INSTRUCTOR AND STUDENT PILOT WERE CONDUCTING ROUTINE FLIGHT TRAINING FROM A SOD AIRSTRIP. DURING TAKEOFF, THE ENGINE FAILED TO DEVELOP FULL POWER. WHEN THE FLIGHT INSTRUCTOR REALIZED THAT THE ENGINE WAS NOT PRODUCING FULL POWER, HE INSTRUCTED THE STUDENT TO ABORT. THE STUDENT CONTINUED THE TAKEOFF, AND WOULD NOT RELINQUISH THE FLIGHT CONTROLS. THE TAKEOFF CONTINUED UNTIL THE AIRPLANE BECAME AIRBORNE, AND COLLIDED WITH A UTILITY POLE AND A TREE. THE EXAMINATION OF THE ENGINE DISCLOSED DEPOSITS OF CARBON IN ONE CYLINDER AND ON THE SPARK PLUG FOR THAT CYLINDER. A HUNDRED HOUR AIRWORTHINESS INSPECTION WAS COMPLETED THREE HOURS BEFORE THE ACCIDENT.

NTSB Probable Cause

THE STUDENT PILOT'S FAILURE TO FOLLOW THE FLIGHT INSTRUCTOR'S INSTRUCTIONS TO ABORT THE TAKEOFF AFTER THE AIRPLANE FAILED TO DEVELOP TAKEOFF POWER. THE STUDENT PILOT ALSO DELAYED IN RELINQUISHING THE FLIGHT CONTROL OF THE AIRPLANE TO THE FLIGHT INSTRUCTOR. A FACTOR IS THE INADEQUATE PERFORMANCE OF THE 100 HOUR AIRWORTHINESS INSPECTION BY MAINTENANCE PERSONNEL.

Full Narrative

On March 15, 1994, at 1345 central standard time, a Cessna 152, N95010, collided with a utility pole and a tree during an attempted takeoff from the sod runway at Lebanon Municipal Airport, Lebanon, Tennessee. Visual weather conditions prevailed at the time of the accident. The instructional flight operated under 14 CFR Part 91, with no flight plan filed. The airplane sustained substantial damage; the certified flight instructor and student pilot were not injured. The instructional flight departed Smyrna, Tennessee, at 1315 hours. According to the flight instructor, his intentions were to prepare the student for off field landing and takeoff operations. During the approach to Lebanon, Tennessee, the flight instructor requested the sod runway for the approach and landing. After landing on runway 04, the pilot back taxied for a short field takeoff. As the airplane rolled through the first third of the runway the engine would not produce full power, and the instructor instructed the student to "abort" the takeoff. After he told the student for the third time to "abort", the flight instructor realized that the student was "locked on the controls and was staring out ahead of the airplane and not listening to me". With seconds left to correct the situation, the instructor asked the student to release the controls. After a few seconds the student released the controls as the airplane approached a stall. The instructor lowered the nose of the airplane and attempted to avoid a collision with the trees. As the instructor maneuvered the airplane, the right wing struck a utility pole and the empennage struck a tree. An examination of the engine revealed that one of the cylinders had a build up of carbon on the spark plugs and the cylinder. A hundred hour inspection was completed three hours before the accident.

Flight

Event TypeAccident
Event Time13:45 CST
Nearest AirportLebanon Airport (1nm NE)
Runway4
Runway Length1801 ft
Runway Width200 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 152
Tail NumberN95010
Aircraft CategoryAir
DamageSubstantial
OperatorSmyrna Flight Academy
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-N2C · Reciprocating · 108
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 33 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind330° @ 12 kt, gusting 16 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point64 F / 27 C
Altimeter29.00 inHg
Observation Time18:51
Weather SourceWFAC

Appendix: Source Data