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NTSB Report
July 18, 1991 · Cessna A188B · N9541J
Hollandale, MS
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 18, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Hollandale, MS
Aircraft
Cessna A188B
Tail Number
N9541J
Operator
Planters Flight Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA91LA202
WHILE MANEUVERING, THE ENG QUIT & THE ACFT WAS DAMAGED DURING THE FORCED LANDING IN A FIELD. EXAM OF THE ENG REVEALED THAT THE NO. 5 CYLINDER CONNECTING ROD CAP SEPARATED. ONE OF THE TWO BOLTS (NO. 1) FAILED DUE TO OVERLOAD. DUE TO DAMAGE TO THE OTHER BOLT (NO. 2), NO DETERMINATION COULD BE MADE AS TO THE REASON FOR THE FAILURE. BOLT NO. 1 WAS EXAMINED & FOUND TO HAVE SIGNATURES ALONG ITS LENGTH. AN UNDAMAGED ROD WAS REMOVED & THE END CAP INSTALLED. THE SIGNATURES OF BOLT NO. 1 WAS COMPARED WITH THE REMOVED ROD & IT WAS DETERMINED THAT THE BOLT WAS LOOSE & THE NUT HAD BACKED OFF APPROXIMATELY 1/2 INCH. REVIEW OF THE ENG LOGBOOK REVEALED THAT IT WAS OVERHAULED ON 09/03/80. THE ROD BOLTS & NUTS WERE REPLACED AT THAT TIME. AT THE TIME OF THE ACCIDENT THE ENG HAD ACCUMULATED APPROXIMATELY 654 HRS SINCE OVERHAUL. NO DETERMINATION COULD BE MADE AS TO THE REASON FOR THE LOOSE ROD BOLT ASSY.
NTSB Probable Cause
OVERLOAD FAILURE OF THE NO. 5 CYLINDER CONNECTING ROD BOLT DUE TO BEING LOOSE FOR UNDETERMINED REASONS. THIS RESULTED IN THE DAMAGE DURING THE FORCED LANDING FOLLOWING TOTAL LOSS OF ENGINE POWER.
Full Narrative
WHILE MANEUVERING, THE ENG QUIT & THE ACFT WAS DAMAGED DURING THE FORCED LANDING IN A FIELD. EXAM OF THE ENG REVEALED THAT THE NO. 5 CYLINDER CONNECTING ROD CAP SEPARATED. ONE OF THE TWO BOLTS (NO. 1) FAILED DUE TO OVERLOAD. DUE TO DAMAGE TO THE OTHER BOLT (NO. 2), NO DETERMINATION COULD BE MADE AS TO THE REASON FOR THE FAILURE. BOLT NO. 1 WAS EXAMINED & FOUND TO HAVE SIGNATURES ALONG ITS LENGTH. AN UNDAMAGED ROD WAS REMOVED & THE END CAP INSTALLED. THE SIGNATURES OF BOLT NO. 1 WAS COMPARED WITH THE REMOVED ROD & IT WAS DETERMINED THAT THE BOLT WAS LOOSE & THE NUT HAD BACKED OFF APPROXIMATELY 1/2 INCH. REVIEW OF THE ENG LOGBOOK REVEALED THAT IT WAS OVERHAULED ON 09/03/80. THE ROD BOLTS & NUTS WERE REPLACED AT THAT TIME. AT THE TIME OF THE ACCIDENT THE ENG HAD ACCUMULATED APPROXIMATELY 654 HRS SINCE OVERHAUL. NO DETERMINATION COULD BE MADE AS TO THE REASON FOR THE LOOSE ROD BOLT ASSY.
Flight
Event TypeAccident
Event Time17:45 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftCessna A188B
Tail NumberN9541J
Aircraft CategoryAir
DamageSubstantial
OperatorPlanters Flight Service
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-720-A1B · Reciprocating · 400
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 40 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind225° @ 4 kt
Visibility5 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO