N31611 — 1956 Sikorsky S-55B
Active registrationChecked against FAA & NTSB records · as of Jul 21, 2026
N31611 has no NTSB accident records on file. Registration data compiled from public FAA records as of Jul 21, 2026.
Aircraft record
- Serial number
- 56-4255
- Manufacturer
- Sikorsky
- Model
- S-55B
- Year
- 1956
- Category
- Rotorcraft
- Engine
- Wright C7ba Series
- Registration
- Active
- Registered to
- Sierra Aeronautics Llc — Franklin, KY
Accident & incident history
No NTSB accident records on file.
Registration timeline
Ownership and registration events for this airframe (the 1956 Sikorsky S-55B).
- Sep 21, 2021registered — Sierra Aeronautics Llc
Frequently asked
- Has N31611 been in an accident?
- No NTSB accident records are on file for N31611.
- What kind of aircraft is N31611?
- N31611 is a 1956 Sikorsky S-55B (rotorcraft), serial number 56-4255.
- Who is N31611 registered to?
- N31611 is registered to Sierra Aeronautics Llc of Franklin, KY. Registration status: active.
The full N31611 report
$12 $29 launch pricing
- Full NTSB investigation narratives — the complete text, not just the cause line
- Pre-buy question list generated from this aircraft’s actual records
- Complete registration & deregistration timeline, print-ready
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