Turbine helicopter

N5663

1959 Sikorsky S-55B

Registered 2 NTSB/FAA records
Built
1959
Serial
55-1267
Class
Turbine helicopter
Engines
Wright R-1300 series
Status
Current as of October 2026
Registered owner
Sierra Aeronautics LLC (LLC)
Based
Franklin, KY
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Registration record

N5663 on the FAA register

Type
1959 Sikorsky S-55B
Serial
55-1267
Engines
Wright R-1300 series
Registered owner
Sierra Aeronautics LLC
Franklin, KY
Certificate issued
2021-10-07
Airworthiness date
1979-02-22
Registration expires
2028-10-31
Airworthiness class
Restricted
Mode S (hex)
A73FF5
Mode S (octal)
51637765
Seats (type)
12
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-10-31
    Registration expires (renewal due).
  • 2021-10-07
    Certificate of registration issued as N5663.
  • 2011-07-25
    Accident at Chelan, WA; damage: substantial.
  • 1979-02-22
    Airworthiness date on the current FAA record (restricted category).
  • 1974-03-22
    Accident at Corvallis,Oreg, 37; damage: substantial.
  • 1959
    Manufactured (1959).
Overview

About N5663

N5663 is a 1959 Sikorsky S-55B, serial number 55-1267. The FAA register lists Sierra Aeronautics LLC as the registrant in Franklin, Kentucky. The current certificate of registration was issued on October 7, 2021 and expires on October 31, 2028.

The FAA aircraft reference file describes the type as a turbine helicopter, one Wright R-1300 series engine and 12 seats. Its airworthiness certificate is restricted category, dated February 22, 1979.

N5663 has 2 accident/incident records on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2011-07-25 Accident · Chelan, WA Damage: Substantial Fatal injury NTSB · WPR11FA350
Reported aircraft: Sikorsky S-55B
Probable cause: The pilot s failure to maintain clearance from power lines while maneuvering at a low altitude.
1974-03-22 Accident · Corvallis,Oreg, 37 Damage: Substantial NTSB · 3 0934
Reported aircraft: Sikorsky S-55B

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.