# N612RM: 1975 Sikorsky S-61N, registration cancelled 2018-08-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 30, 2018
- Exported to: Canada
- Status when cancelled: Valid registration
- Airframe: [Sikorsky S-61N](https://openairdocs.org/model/sikorsky-s-61n) (registry code 8142104)
- Engine: [GE CT58 series](https://openairdocs.org/engine/ge-ct58-series) (registry code 30011)
- Data sheets: [TCDS 1H15](https://openairdocs.org/tcds/1H15) (OpenAirDocs)
- Serial number: 61744
- Year built: 1975
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, transport
- Airworthiness date: November 8, 2004
- Certificate issued: March 24, 2009
- Last registry action: November 23, 2016
- Mode S code: A7F7AF
- Owner when cancelled: [Ep Aviation LLC](https://openairdocs.org/faa-owner/EP%20AVIATION%20LLC)
- Location: [Wood Dale, IL](https://openairdocs.org/faa-place/IL/Wood%20Dale)
- Owner type: Corporation
- Owner's area on the map: 41.9744° N, 87.9865° W: Placed by OpenAirDocs at the center of ZIP code 60191, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N612RM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=612RM
- Page: https://openairdocs.org/deregistered/N612RM-2018-08-30

From the FAA registry file of November 3, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Sikorsky S-61N: https://openairdocs.org/model/sikorsky-s-61n.md

## Service difficulty reports (10)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 39LA20150221108](https://openairdocs.org/sdr/39LA20150221108), Feb 21, 2015: SWITCH. FAILED. DURING FINAL APPROACH THE NR 2 ENG FIRE WARNING LIGHT IN THE T HANDLE WAS FLICKERING & STAYED ON AFTER LANDING. FOUND FIRE WARNING TEST SWITCH INOPERATIVE. R & 
- [SDR 39LA20150220107](https://openairdocs.org/sdr/39LA20150220107), Feb 20, 2015: CONNECTOR. DIRTY. DURING FINAL APPROACH THE NR 2 ENG FIRE WARNING LIGHT IN THE T HANDLE WAS FLICKERING WITH NO VISUAL SIGNS OF FIRE. CLEANED FORE & AFT ENG DECK FIRE LOOP CONNECT
- [SDR 39LA20141221104](https://openairdocs.org/sdr/39LA20141221104), Dec 21, 2014: ENGINE. MALFUNCTIONED. DURING LANDING AT A 10 FOOT HOVER ACFT EXPERIENCED A VIOLENT SHUTTER & A LOUD GRINDING SOUND FROM THE NR 1 ENG. T5 WENT ABOVE 958 DEGREES & THE ENG SHUTDOWN AUT
- [SDR 39LA2013121329](https://openairdocs.org/sdr/39LA2013121329), Dec 13, 2013: BLOWER. FAILED. DURING FLIGHT AT CRUISE ALTITUDE WITH CABIN HEAT ON, SMOKE WAS NOTICED COMING FROM THE HEATER AREA. REMOVED HEATER BLOWER PN ME-600-1000, SN 1632. INSTALLED SER
- [SDR 39LA2013111415](https://openairdocs.org/sdr/39LA2013111415), Nov 14, 2013: INDICATOR. FAILED. DURING CRUISE FLIGHT, ENROUTE, THE AFT FUEL CELL LOW LIGHT ILLUMINATED. TRANSFERRED KNOWN QUANTITY OF FUEL INTO AFT FUEL CELL WITH NO RISE IN AFT TANK INDICATIO
- [SDR 39LA2013090300004](https://openairdocs.org/sdr/39LA2013090300004), Aug 27, 2013: ENGINE. MALFUNCTIONED. SUSPECTED COMPRESSOR STALL ON NR 1 ENGINE DURING CLIMBOUT. COMPLETED NR 1 ENG COMPRESSOR WASH AND INSPECTED FRONT FRAME. NO DAMAGE NOTED WORK DONE IAW SEI -182,
- [SDR 39LA2013010600001](https://openairdocs.org/sdr/39LA2013010600001), Jan 6, 2013: LINE. CRACKED. HELICOPTER DEPARTED, ENROUTE, CREW CHIEF NOTICED THAT HYD FLUID WAS LEAKING FROM THE DRIP PAN UNDER THE TRANSMISSION. HELICOPTER DIVERTED. HYD LINE WAS FOUND TO
- [SDR 96ZZZX1069](https://openairdocs.org/sdr/96ZZZX1069), Feb 12, 1996: FITTING. CRACKED. DURING ROUTINE INSPECTION, A CRACK IN THE WEB ON THE INTERMEDIATE GEARBOX MOUNT WAS FOUND. THE CRACK IS .75 INCH LONG AND EXTENDS FROM THE WEB RADIUS TO A FASTE
- [SDR 96ZZZX1068](https://openairdocs.org/sdr/96ZZZX1068), Feb 12, 1996: HOUSING. CRACKED. DURING ROUTINE INSPECTION, A .75 INCH LONG CRACK WAS FOUND IN THE FORWARD RT ATTACHMENT MOUNT. THIS HOUSING IS MANUFACTURED FROM MAGNESIUM WHICH REQUIRES A ROUT
- [SDR 95ZZZX2142](https://openairdocs.org/sdr/95ZZZX2142), Mar 29, 1995: BEARING. FAILED. DURING A ROUTINE CROSS-COUNTRY FLIGHT, AN UNUSUAL VIBRATION WAS FELT BY THE FLIGHT CREW AND A PRECAUTIONARY LANDING WAS MADE. POST-FLIGHT INSPECTION FOUND THE O

## Other aircraft with N612RM

- [Registered now](https://openairdocs.org/aircraft/N612RM): Textron 525B, S/N 525B0754, built 2025

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