Piston helicopter

N616Z

1957 Sikorsky S55B

Registered No accidents on file
Built
1957
Serial
57-1616
Class
Piston helicopter
Engines
1
Status
Current as of October 2026
Registered owner
Sierra Aeronautics LLC (LLC)
Based
Franklin, KY
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Registration record

N616Z on the FAA register

Type
1957 Sikorsky S55B
Serial
57-1616
Engines
1
Registered owner
Sierra Aeronautics LLC
Franklin, KY
Certificate issued
2021-09-21
Airworthiness date
1980-11-26
Registration expires
2028-09-30
Airworthiness class
—
Mode S (hex)
A80747
Mode S (octal)
52003507
Seats (type)
12
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-09-30
    Registration expires (renewal due).
  • 2021-09-21
    Certificate of registration issued as N616Z to the current registrant.
  • 1980-11-26
    Airworthiness date on the current FAA record.
  • 1970-06-26
    N616Z previously assigned to a Homebuilt C-46 (s/n 22590); cancelled.
  • 1957
    Manufactured (1957).
Overview

About N616Z

N616Z is a 1957 Sikorsky S55B, serial number 57-1616. The FAA register lists Sierra Aeronautics LLC as the registrant in Franklin, Kentucky. The current certificate of registration was issued on September 21, 2021 and expires on September 30, 2028.

The FAA aircraft reference file describes the type as a piston helicopter and 12 seats.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N616Z. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1963-02-16 Accident · Puyallup,Wash, 47 Damage: Destroyed NTSB · 1 0004
Reported aircraft: Curtiss-Wrt C-46F — a different aircraft that carried the N616Z registration before this airframe.
Probable cause: VIDE COMPLETE ACCURATE AFLD DATA TO PLT.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Sikorsky aircraft for sale· Aircraft registered in Kentucky· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.