N138AR1977 Sikorsky S-61N
Safety record in brief:No NTSB accidents or incidents since 19825 ADs may apply3 service difficulty reports
Registration
FAA Aircraft Registry · Oct 18, 2026- Registered owner
- Amentum Services INC
- Owner type
- Corporation
- City, state
- West Palm Beach, FL
- Certificate issued
- Feb 7, 2022
- Expires
- Feb 28, 2029
- Airworthiness
- Standard · Transport
- Airworthiness date
- Mar 7, 1995
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 dataAirframe
- Manufacturer
- Sikorsky
- Model
- S-61N
- Year
- 1977
- Serial number
- 61767
- 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
- A098F9
Engine
- Make and model
- Ge Ct58 Series
- 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- 2022 – nowAmentum Services INCWest Palm Beach, FL · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
Accident history for this modelADs 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.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2021-05-19 | Tail Rotor Control System | May 7, 2021 | Airframe (S-61N)Only with: Arm assembly part number S6140-62614-009 installed; certificated in any category including restricted. |
| 2013-05-17 | Sikorsky Aircraft Corporation Helicopters | Apr 26, 2013 | Airframe (S-61N)Only with: With a fuel system 40 micron fuel filter element P/N 52-0505-2 or 52-01064-1 installed. |
| 2004-15-22 | Sikorsky Aircraft Corporation Model S-61L, S-61N, S-61-NM, and S-61R Helicopters | Sep 7, 2004 | Airframe (S-61N) |
| 2001-18-06 | General Electric Company T58 and CT58 Series Turboshaft Engines | Oct 18, 2001 | Engine (CT58 SERIES) |
| 98-26-02 | Sikorsky Aircraft Corporation Model S- 61A, D, E, L, N, NM, R, and V Helicopters | Jan 20, 1999 | Airframe (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 (3)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
- Hydraulic power · pump · failedJun 11, 2021
DURING EXTERNAL LIFT OPERATIONS AUX SERVO LIGHT ILLUMINATED AND LOST ALL AUX SERVO PRESSURE. AIRCRAFT RELEASED EXTERNAL LOAD IN HARBOR AND MADE SAFE LANDING AT BASE. MAINTENANCE PERFORMED TROUBLE SHOOTING. THE AUX HYD. PUMP WAS REPLACED AND OPERATIONAL CHECKS WERE NORMAL. NO OTHER DISCREPANCIES…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Main rotor drive · gearbox · failedJun 7, 2020
DURING FLIGHT, AIRCREW NOTICED LOW OIL PRESSURE TO THE MAIN GEAR BOX, NO LIGHT OR OTHER INDICATIONS NOTED. AIRCRAFT RETURNED TO BASE WITH NO OTHER DISCREPANCIES. PERFORMED INSPECTION OF THE MAIN GEAR BOX SUMP SCREEN AND FOUND THE SCREEN COVERED WITH THE INTERNAL RESIN COATING OF THE GEAR BOX.…
From FAA Service Difficulty Reports; matched by N-number and serial number. - Landing gear · connector · contaminatedSep 17, 2019
MAIN LANDING GEAR DID NOT RETRACT WHEN SELECTED. (ACTION TAKEN) MOISTURE FOUND IN MAIN LANDING GEAR PUMP MOTOR CANNON PLUG. CLEANED PLUG AND PERFORMED MAIN LANDING GEAR OPERATIONAL CHECKS. NO OTHER DEFECTS NOTED.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 18, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 18, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026