Piston helicopter

N855TC

1956 Sikorsky S55B

Registered 1 NTSB/FAA record
Built
1956
Serial
551005
Class
Piston helicopter
Engines
Wright R-1300-3D
Status
Current as of October 2026
Registered owner
Sierra Aeronautics LLC (LLC)
Based
Franklin, KY
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Registration record

N855TC on the FAA register

Type
1956 Sikorsky S55B
Serial
551005
Engines
Wright R-1300-3D
Registered owner
Sierra Aeronautics LLC
Franklin, KY
Certificate issued
2021-09-21
Airworthiness date
2006-05-31
Registration expires
2028-09-30
Airworthiness class
Standard · normal
Mode S (hex)
ABBB97
Mode S (octal)
52735627
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 N855TC.
  • 2011-07-25
    Accident at Brewster, WA; damage: substantial.
  • 2006-05-31
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1956
    Manufactured (1956).
Overview

About N855TC

N855TC is a 1956 Sikorsky S55B, serial number 551005. 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, one Wright R-1300-3D engine and 12 seats. Its airworthiness certificate is standard category (normal), dated May 31, 2006.

N855TC has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2011-07-25 Accident · Brewster, WA Damage: Substantial NTSB · WPR11LA356
Reported aircraft: Sikorsky S-55B
Probable cause: The pilot did not maintain main rotor rpm while hovering in gusting wind conditions.

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.