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NTSB Report
October 5, 1985 · Bell 206L · N60C
Islamorada, FL
Overview
Report Status
Preliminary report
Event Type
Accident
Date
October 5, 1985
Injury Outcomes
No injuries (6 uninjured)
Location
Islamorada, FL
Aircraft
Bell 206L
Tail Number
N60C
Operator
Tropical Helicopter Airways
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA86LA004
AIRCRAFT WAS DITCHED IN THE ATLANTIC OCEAN AFTER LOSS OF ENGINE POWER. POST CRASH INSPECTION OF THE ENGINE AFTER RECOVERY FROM THE OCEAN REVEALED THJE PC OR COMPRESSOR PRESSURE AIR LINE HAD FAILED AT A 'B' NUT AT THE COMPRESSOR SCHROLL. WITH THIS LINE FAILED THE ENGINE WOULD NOT OPERATE ABOVE IDLE SPEED. METALLURGICAL EXAMINATION OF THE FAILED LINE REVEALED IT FAILED DUE TO FATIGUE WHICH WAS CAUSED BY THE LINE BEING MISALIGNED DURING INSTALLATION.
Full Narrative
AIRCRAFT WAS DITCHED IN THE ATLANTIC OCEAN AFTER LOSS OF ENGINE POWER. POST CRASH INSPECTION OF THE ENGINE AFTER RECOVERY FROM THE OCEAN REVEALED THJE PC OR COMPRESSOR PRESSURE AIR LINE HAD FAILED AT A 'B' NUT AT THE COMPRESSOR SCHROLL. WITH THIS LINE FAILED THE ENGINE WOULD NOT OPERATE ABOVE IDLE SPEED. METALLURGICAL EXAMINATION OF THE FAILED LINE REVEALED IT FAILED DUE TO FATIGUE WHICH WAS CAUSED BY THE LINE BEING MISALIGNED DURING INSTALLATION.
Flight
Event TypeAccident
Event Time09:20 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206L
Tail NumberN60C
Aircraft CategoryHeli
DamageSubstantial
OperatorTropical Helicopter Airways
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats7
People & Injuries
Injury SummaryNo injuries (6 uninjured)
Fatal0
Serious0
Minor0
Uninjured6
Total6
Crew 1Age 25 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind130° @ 5 kt
Visibility8 sm
CeilingBroken clouds 25000 ft
Altimeter30.00 inHg
Observation Time13:50
Weather SourceWFAC