N552AC

EUROCOPTER EC 225 LP · 2014 · Valid Registration

Registered owner: VERTICAL AVIATION NO 1 LLC, FL (owner ≠ operator)

Operators of this aircraft

Who operated this tail, and how firmly we know it.

OperatorRolePeriodBasis
AIR CENTER HELICOPTERS, INC. (MHNA)Certificate holderMatched by certificate designator

Accident & incident history

No NTSB accidents or incidents on file for this aircraft.

Maintenance disclosures

E · 2025-07-23 Matched by certificate designator
ATA 6410

DURING A ROTOR TRACK AND BALANCE FLIGHT, THERE WAS AN ISSUE. AFTER COMPLETION OF THE FINAL MCP TRACKING STAGE, A MODERATE TO SEVERE VIBRATION WAS FELT THROUGHOUT THE AIRFRAME. THE DECISION WAS MADE TO RETURN IMMEDIATELY TO THE SHIP'S DECK, AT WHICH POINT THE AIRCRAFT SHUT DOWN. DURING THE SHUTDOWN, A MAINTENANCE TECHNICIAN CAME ON BOARD TO CONFIRM THE VIBRATIONS IN THE CABIN AREA. UPON VISUAL INSPECTION AND CROSS REFERENCE WITH THE HUMS DATA IT WAS DISCOVERED THAT THE BLACK BLADE TAIL ROTOR DRAG DAMPER COUPLING HAD CRACKED AND SEPARATED, DURING THAT PROCESS IT HAD ALSO DAMAGED THE ROTOR BLADE ITSELF. THE MAINTENANCE PERSONNEL REMOVED AND REPLACED ALL BROKEN ITEMS.

Source: SDR MHNA20250723 · FAA SDRS