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NTSB Report
November 6, 1987 · Cessna 172P · N52263
Danville, IL
Overview
Report Status
Preliminary report
Event Type
Accident
Date
November 6, 1987
Injury Outcomes
No injuries (1 uninjured)
Location
Danville, IL
Aircraft
Cessna 172P
Tail Number
N52263
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI88LA018
DURING AN EMERGENCY OFF AIRPORT LANDING, SUBSEQUENT TO A POWER FAILURE, THE AIRCRAFT EXPERIENCED A NOSE OVER AND SUFFERED SUBSTANTIAL DAMAGE. THE PILOT REPORTED NO INJURIES. INVESTIGATION AFTER THE ACCIDENT REVEALED A VALVE STICKING PROBLEM IN THE ENGINE. DURING THE POST ACC EXAM THE ENG WOULD RUN AT HIGH SETTING BUT QUIT WHEN REDUCED TO CRUISE PWR. THE VALVE STEM CLEARANCES WERE FOUND TO MEET SPECS HOWEVER THERE WERE EXCESSIVE CARBON DEPOSITS AT THE BASE OF THE STEMS ON THE INTAKE VALVES. THE ENGINE HAD BEEN OVERHAULED 350 HOURS PREVIOUSLY AND HAD A 100 HOUR INSPECTION 49 HOURS PREVIOUSLY.
Full Narrative
DURING AN EMERGENCY OFF AIRPORT LANDING, SUBSEQUENT TO A POWER FAILURE, THE AIRCRAFT EXPERIENCED A NOSE OVER AND SUFFERED SUBSTANTIAL DAMAGE. THE PILOT REPORTED NO INJURIES. INVESTIGATION AFTER THE ACCIDENT REVEALED A VALVE STICKING PROBLEM IN THE ENGINE. DURING THE POST ACC EXAM THE ENG WOULD RUN AT HIGH SETTING BUT QUIT WHEN REDUCED TO CRUISE PWR. THE VALVE STEM CLEARANCES WERE FOUND TO MEET SPECS HOWEVER THERE WERE EXCESSIVE CARBON DEPOSITS AT THE BASE OF THE STEMS ON THE INTAKE VALVES. THE ENGINE HAD BEEN OVERHAULED 350 HOURS PREVIOUSLY AND HAD A 100 HOUR INSPECTION 49 HOURS PREVIOUSLY.
Flight
Event TypeAccident
Event Time09:57 CST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172P
Tail NumberN52263
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-D2J · Reciprocating · 160
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 37 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 6 kt
Visibility20 sm
CeilingOvercast 8000 ft
Temperature / Dew Point45 C / 28 C
Altimeter30.00 inHg
Observation Time15:45
Weather SourceWFAC