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NTSB Report
December 31, 1994 · Piper PA-28-161 · N4300S
Lakeland, FL
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
December 31, 1994
Injury Outcomes
No injuries (2 uninjured)
Location
Lakeland, FL
Aircraft
Piper PA-28-161
Tail Number
N4300S
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA95LA051
WHILE IN CRUISE FLIGHT THE ENGINE LOST POWER AND THE PILOT ATTEMPTED A FORCED LANDING AT NIGHT TO AN INTERSTATE HIGHWAY. DURING APPROACH THE AIRPLANE HIT WIRES. EXAMINATION OF THE ENGINE AFTER THE ACCIDENT REVEALED FATIGUE FAILURE OF THE NO.1 CYLINDER OUTER INTAKE VALVE SPRING THAT JAMMED THE INNER SPRING RESULTING IN THE VALVE BEING JAMMED OPEN.
NTSB Probable Cause
FATIGUE FAILURE OF THE ENGINE NO.1 VALVE SPRING THAT JAMMED THE INTAKE VALVE OPEN RESULTING IN PARTIAL LOSS OF ENGINE POWER.
Full Narrative
On December 31, 1994, about 1820 eastern standard time, N4300S, a Piper PA-28-161, registered to Air Orlando Sales Inc., crashed in Lakeland, Florida, while on a 14 CFR Part 91 personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The airplane was substantially damaged and the commercial pilot and one passenger received no injuries. The flight originated from the Lakeland Airport about 15 minutes earlier. The pilot noted a loss of engine power and initiated a forced landing to the median of an interstate highway. The airplane struck wires on approach. Examination by the FAA revealed the No. 1 cylinder outer intake valve spring failed. Further examination of the spring revealed failure signatures consistent with fatigue.
Flight
Event TypeAccident
Event Time18:20 EST
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-28-161
Tail NumberN4300S
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-D3G · Reciprocating · 160
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 23 · First Class
Conditions
ConditionsVMC
LightDark Night
Wind40° @ 5 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter30.00 inHg
Observation Time22:55
Weather SourceWFAC