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NTSB Report
May 19, 2022 · Eurocopter AS355 N · N448JM
Palm Beach, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 19, 2022
Injury Outcomes
No injuries (1 uninjured)
Location
Palm Beach, FL
Aircraft
Eurocopter AS355 N (1997)
Tail Number
N448JM
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ERA22LA231
The pilot picked up the helicopter from a repair facility and while flying home heard a “boom,” felt a vibration in the tail, and performed a precautionary landing to a beach. Postaccident examination of the helicopter revealed that the engine cowling had become unlatched and was subsequently struck by a main rotor blade. The detached cowling then struck the horizontal stabilizer and tail rotor, which resulted in substantial damage. The pilot reported that he did not confirm that the engine cowling latch was properly secured during his preflight inspection. He reported that there were no mechanical malfunctions or failures of the helicopter before the cowling opened and detached.
NTSB Probable Cause
The pilot’s inadequate preflight inspection, which resulted in the unlatched engine cowling opening and being struck by a main rotor blade during flight. Contributing to the accident was the mechanic’s failure to properly secure the cowling following maintenance.
Full Narrative
The pilot picked up the helicopter from a repair facility and while flying home heard a “boom,” felt a vibration in the tail, and performed a precautionary landing to a beach. Postaccident examination of the helicopter revealed that the engine cowling had become unlatched and was subsequently struck by a main rotor blade. The detached cowling then struck the horizontal stabilizer and tail rotor, which resulted in substantial damage. The pilot reported that he did not confirm that the engine cowling latch was properly secured during his preflight inspection. He reported that there were no mechanical malfunctions or failures of the helicopter before the cowling opened and detached.
Flight
Event TypeAccident
Event Time12:10 EDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftEurocopter AS355 N
Tail NumberN448JM
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeTurboshaft
Engine DetailsEurocopter · Turbomeca Arr · Turboshaft · 479
Seats6
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 48 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 6 kt
Visibility10 sm
CeilingNone
Altimeter30.03 inHg
Observation Time11:53
Weather SourceWFAC