N557SM

ROBINSON HELICOPTER COMPANY R44 II · 2007 · Rotorcraft · 1 engine · 4 seats · Valid Registration

Registered owner: ACMEFLIGHT LLC, CA (owner ≠ operator)

Operators of this aircraft

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

Operator	Role	Period	Basis
Helico Sonoma Inc. (1N7A)	Certificate holder	—	Matched by certificate designator

Accident & incident history

No NTSB accidents or incidents on file for this aircraft.

Maintenance disclosures

Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.

1 report on file, 2019-08-22.

OTHER · 2019-08-22 Matched by certificate designator

ATA 6240

Part: TACHOMETER — FAILED (DUAL)

CUSTOMER REPORTED DUAL TACHOMETER FAILED DURING FIRST TRACK AND BALANCE FLIGHT.

Source: SDR YV3R2019082920168