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Aircraft record

N502SC1975 Sikorsky S-61N

DeregisteredUnclaimedSource: FAA, updated Oct 17, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Mar 14, 2018.

Safety record in brief:No NTSB accidents or incidents since 19825 ADs may apply

Registration
Deregistered
Last based in
Missoula, MT
owner city / state
Owners
1
since 2014
NTSB events
None
since 1982
ADs may apply
5
confirm with A&P
Service reports
0
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Last registered owner
Heligroup 502 LLC
Owner type
Corporation
City, state
Missoula, MT
Certificate issued
Mar 6, 2014
Canceled
Mar 14, 2018
Airworthiness
Standard · Transport
Airworthiness date
Feb 11, 2008

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Sikorsky
Model
S-61N
Year
1975
Serial number
61737
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
28
Engines
2
Max takeoff weight
12,500 - 19,999 lb
Type certificate data sheet
1H15
Mode S code
A642F1

Engine

Make and model
Ge Ct58
Type
Turbo-shaft
Power
1350 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2014 – 2018Heligroup 502 LLCMissoula, MT
  2. 2001 – 2002Individual ownerWinnetka, IL · different airframe: 2001 Stemme Gmbh & Co S10-Vt S/N 11-056

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (5)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2021-05-19Tail Rotor Control SystemMay 7, 2021Airframe (S-61N)Only with: Arm assembly part number S6140-62614-009 installed; certificated in any category including restricted.
2013-05-17Sikorsky Aircraft Corporation HelicoptersApr 26, 2013Airframe (S-61N)Only with: With a fuel system 40 micron fuel filter element P/N 52-0505-2 or 52-01064-1 installed.
2004-15-22Sikorsky Aircraft Corporation Model S-61L, S-61N, S-61-NM, and S-61R HelicoptersSep 7, 2004Airframe (S-61N)
2001-18-06General Electric Company T58 and CT58 Series Turboshaft EnginesOct 18, 2001Engine (CT58)
98-26-02Sikorsky Aircraft Corporation Model S- 61A, D, E, L, N, NM, R, and V HelicoptersJan 20, 1999Airframe (S-61N)Only with: Main rotor shaft P/N S6135-20640-001, S6135-20640-002, or S6137-23040-001 installed.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (0)

No Service Difficulty Reports found for this airframe since 1995.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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