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NTSB Report
October 22, 1989 · Beech A36 · N6736L
Lansing, IL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 22, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Lansing, IL
Aircraft
Beech A36
Tail Number
N6736L
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI90LA018
WHILE ATTEMPTING TO TAXI FROM THE RUNWAY TO THE HANGAR/RAMP AREA AFTER LANDING, THE PLT TAXIED ACROSS A GRASSY AREA TO GET TO THE MARKED TEMPORARY GRASS TAXIWAY. AS HE TAXIED THROUGH THE GRASSY AREA, THE ACFT'S LEFT MAIN LANDING GEAR DROPPED INTO AN UNMARKED HOLE WHICH THE PLT ESTIMATED TO BE 23' DEEP. THE PLT WAS ABLE TO TAXI THE ACFT OUT OF THE HOLE BY USING POWER; HOWEVER SUBSTANTIAL DAMAGE RESULTED TO THE ACFT. THE ARPT WAS IN THE MIDST OF ONGOING CONSTRUCTION, AND THE HOLE WAS ONE OF SEVERAL CAUSED BY THE RELOCATION OF THE VASI LIGHT INSTALLATION DUE TO RUNWAY EXPANSION. THE AIRPORT MANAGEMENT STATED THAT THE HOLES HAD BEEN 'RESTORED' AFTER THE VASI STRUCTURES WERE REMOVED; THEY WERE 'RESTORED' AGAIN THE DAY AFTER THE ACCIDENT. THE PLT DESCRIBED THE LIGHT CONDITIONS AS 'DARK NIGHT' AT THE TIME OF THE ACCIDENT.
NTSB Probable Cause
PILOT'S POOR JUDGEMENT IN ELECTING TO TAXI ACROSS AN UNMARKED AREA IN DARK NIGHT CONDITIONS, AT AN AIRPORT WITH KNOWN CONSTRUCTION IN PROGRESS AND THE AIRPORT MANAGEMENT'S FAILURE TO ASSURE THE INITIAL REPAIRS WERE SUFFICIENT TO CORRECT THE HOLES MADE DURING CONSTRUCTION.
Full Narrative
WHILE ATTEMPTING TO TAXI FROM THE RUNWAY TO THE HANGAR/RAMP AREA AFTER LANDING, THE PLT TAXIED ACROSS A GRASSY AREA TO GET TO THE MARKED TEMPORARY GRASS TAXIWAY. AS HE TAXIED THROUGH THE GRASSY AREA, THE ACFT'S LEFT MAIN LANDING GEAR DROPPED INTO AN UNMARKED HOLE WHICH THE PLT ESTIMATED TO BE 23' DEEP. THE PLT WAS ABLE TO TAXI THE ACFT OUT OF THE HOLE BY USING POWER; HOWEVER SUBSTANTIAL DAMAGE RESULTED TO THE ACFT. THE ARPT WAS IN THE MIDST OF ONGOING CONSTRUCTION, AND THE HOLE WAS ONE OF SEVERAL CAUSED BY THE RELOCATION OF THE VASI LIGHT INSTALLATION DUE TO RUNWAY EXPANSION. THE AIRPORT MANAGEMENT STATED THAT THE HOLES HAD BEEN 'RESTORED' AFTER THE VASI STRUCTURES WERE REMOVED; THEY WERE 'RESTORED' AGAIN THE DAY AFTER THE ACCIDENT. THE PLT DESCRIBED THE LIGHT CONDITIONS AS 'DARK NIGHT' AT THE TIME OF THE ACCIDENT.
Flight
Event TypeAccident
Event Time18:45 CDT
Nearest AirportLansing Municipal (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech A36
Tail NumberN6736L
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-BB · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 49 · Third Class
Conditions
ConditionsVMC
LightDark Night
WindCalm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter0
Observation Time19:00