# Service difficulty reports: Sikorsky S-61N

A list on [Sikorsky S-61N](https://openairdocs.org/model/sikorsky-s-61n.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 6 · 287 reports

- [SDR JTAA20260504001](https://openairdocs.org/sdr/JTAA20260504001.md): Transmission · fod · May 4, 2026 · N825WL · Skrsky S61N · Main Rotor Gearbox
  > DURING FLIGHT HAD LOW TRANSMISSION PRESSURE AND ELS SYSTEM KICKED ON. FOUND MGB LINER MATERIAL IN CHIP DETECTOR SCREEN OF MGB.
- [SDR 2026F00097](https://openairdocs.org/sdr/2026F00097.md): Transmission · fod · May 4, 2026 · N825WL · Skrsky S61N · Main Rotor Gearbox
  > DURING FLIGHT HAD LOW TRANSMISSION PRESSURE AND ELS SYSTEM KICKED ON. FOUND MGB LINER MATERIAL IN CHIP DETECTOR SCREEN OF MGB.
- [SDR 2024F00051](https://openairdocs.org/sdr/2024F00051.md): Cable · chafed · Mar 4, 2024 · N905CH · Skrsky S61N · Fire Protection System Wiring
  > #1 ENGINE FIRE LIGHT ILLUMINATED IN FLIGHT. R&R'D ENGINE FIRE LOOP CABLE.
- [SDR 2024FA0000139](https://openairdocs.org/sdr/2024FA0000139.md): Damper · cracked · Feb 7, 2024 · N703HG · Skrsky S61N · Main Rotor System
  > AFTER THE SECOND GROUND TURN ON A/C 61703 FEBRUARY 06, 2024 THE DAMPER LISTED ABOVE CRACKED AT THE INBOARD SIDE OF THE DAMPER HOUSING. THE AIRCRAFT PERFORMED ONE GROUND TURN PRIOR TO THIS DAY. WE REMOVED THE DAMPER AND PERFORMED A DISASSEMBLY TO ACCESS WHAT C
- [SDR R9EA202008110101](https://openairdocs.org/sdr/R9EA202008110101.md): Pump · failed · Jun 11, 2021 · N138AR · Skrsky S61N · Hydraulic Pump (Electric/Engine), Main
  > 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
- [SDR R9EA20200811001](https://openairdocs.org/sdr/R9EA20200811001.md): Gearbox · failed · Jun 7, 2020 · N138AR · Skrsky S61N · Main Rotor Gearbox
  > 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 INTER
- [SDR JTAA2019101120001](https://openairdocs.org/sdr/JTAA2019101120001.md): Trans Rectifier · failed · Oct 11, 2019 · N905C · Skrsky S61N · Electrical Power System Wiring
  > ENCOUNTERED SMOKE IN THE COCKPIT WITH ACCOMPANYING DC GEN AND RECTIFIER WARNING LIGHTS ILLUMINATED. IDENTIFIED TRANSFORMER RECTIFIER WINDINGS HAD OVERHEATED AND SMOKE RESIDUE ON THE CASE OF THE UNIT. NO NOTED FIRE OR ANY OTHER WIRE DAMAGE. THE EVENT TRANSPIRED
- [SDR R9EA20200306001](https://openairdocs.org/sdr/R9EA20200306001.md): Connector · contaminated · Sep 17, 2019 · N138AR · Skrsky S61N · Landing Gear System Wiring
  > 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.
- [SDR JTAA201904230001](https://openairdocs.org/sdr/JTAA201904230001.md): Connector · melted · Apr 19, 2019 · N904CH · Skrsky S61N · Electrical Power System Wiring
  > EXPERIENCED AN ELECTRICAL FAILURE THAT RESULTED IN 6 CIRCUIT BREAKERS TRIPPED AND ELECTRICAL CONNECTOR J3/P3 ON THE AVIONICS RELAY BOX TO SHOW MELTING ON ONE END OF THE CONNECTOR AND ASSOCIATED WIRES AT THE CONNECTOR LOCATION. FURTHER FINDINGS REVEALED THE #2
- [SDR JTAA2018081000119](https://openairdocs.org/sdr/JTAA2018081000119.md): Fire Warning · false activation · Aug 9, 2018 · N906CH · Skrsky S61N · Fire Detection
  > CARRYING AN EXTERNAL LOAD, A NR 2 ENGINE FIRE INDICATED. THE LOAD WAS SET BACK DOWN AND AIRCRAFT LANDED. INSPECTED THE NR 2 ENGINE AND NO EVIDENCE OF FIRE. DETERMINED FALSE INDICATION AND TROUBLESHOOTING REVEALED COULD NOT DUPLICATE THE INDICATION. SYSTEM WIR
- [SDR 2018F00079](https://openairdocs.org/sdr/2018F00079.md): Line · cracked · Jun 15, 2018 · N825WL · Skrsky S61N · Main Rotor Gearbox
  > MAIN ROTOR GEARBOX EMERGENCY OIL LINE WAS LOSING OIL CAUSING INDICATION OF LOW GEARBOX OIL PRESSURE. THIS WAS CAUSE FOR AN EMERGENCY LANDING.
- [SDR 39LA20170702173](https://openairdocs.org/sdr/39LA20170702173.md): Liner · worn · Jul 2, 2017 · N823AR · Skrsky S61N · Landing Gear Brake System
  > WHEN USING BRAKES, AIRCRAFT CONTINUED TO ROLL. REMOVED AND REPLACED THE WORN BRAKE LINERS IAW MM 32-43-1. BLED BRAKE SYSTEM IAW MM 32-43-0. OPS CHECKED GOOD.
- [SDR JYER20161207001](https://openairdocs.org/sdr/JYER20161207001.md): Bearing · mismanufactured · Dec 7, 2016 · Skrsky S61N · Accessory Gearboxes
  > DURING ROUTINE OVERHAUL OF ACCESSORY DRIVE GEARBOX, THE LOWER BEARING INSTALLED ON BEVEL PINION GEAR WAS FOUND TO HAVE WHAT APPEARS TO BE A SMALLER BALL IN THE BEARING AS COMPARED TO THE OTHERS. THE BEARING ALSO HAS ROUGH OPERATION WHEN ROTATED BY HAND.
- [SDR 2016FA0000605](https://openairdocs.org/sdr/2016FA0000605.md): A/C Pack · inoperative · Dec 6, 2016 · N627CK · Skrsky S61N · Hydraulic System, Main
  > DURING A TRAINING FLIGHT, THE AUXILIARY SERVO SYSTEM WAS SECURED "OFF" WITH THE PILOT'S COLLECTIVE SWITCH DURING FLIGHT FOR TRAINING PURPOSES. AFTER THE MANEUVER WAS COMPLETE,THE SWITCH WAS RETURNED TO THE CENTER "ON" POSITION. THE AUXILIARY SERVO SYSTEM WAS N
- [SDR 39LA20161205171](https://openairdocs.org/sdr/39LA20161205171.md): Door · departed · Dec 5, 2016 · N823AR · Skrsky S61N · Passenger/Crew Doors
  > DURING CRUISE FLIGHT, THE CREW HEARD AND FELT A LOUD BANG AND NOTICED THAT THE PASSENGER AIRSTAIR DOOR HAD DEPARTED THE AIRCRAFT. AIRCRAFT CONTINUED FLIGHT AND LANDED WITHOUT INCIDENT.
- [SDR 39LA20161006170](https://openairdocs.org/sdr/39LA20161006170.md): Window · departed · Oct 6, 2016 · N823AR · Skrsky S61N · Flight Compartment Windows
  > DURING CRUISE, THE CO-PILOT NOTICED THE SLIDING WINDOW ON THE RIGHT SIDE HAD DETACHED FROM THE AIRCRAFT AND WAS MISSING. LANDING WAS NORMAL. REMOVED REMAINING SECTION OF WINDOW ASSY. REPLACED THE WINDOW AND BROKEN RETAINER IAW SRM 4045-31E CH 52, REINSTALLE
- [SDR 39LA20160914169](https://openairdocs.org/sdr/39LA20160914169.md): Engine · flamed out · Sep 14, 2016 · N103WF · Skrsky S61N · Engine (Turbine/Turboprop)
  > UPON TAKEOFF, THE CREW REPORTED THAT THE NR 2 ENGINE SHUTDOWN. UPON LANDING, THE AIRCRAFT WAS SHUTDOWN WHILE THE PASSENGERS WERE EVACUATED. MAINTENANCE PERFORMED AN INSPECTION OF ALL FEED LINES IN THE AFT AND CENTER FUEL TANKS AND INSPECTED THE NR 2 AIRFRAME
- [SDR 39LA20160906168](https://openairdocs.org/sdr/39LA20160906168.md): Engine · flamed out · Sep 6, 2016 · N103WF · Skrsky S61N · Engine (Turbine/Turboprop)
  > WHILE 4.3 HOURS INTO A CONOP, THE CREW HAD JUST TAKEN OFF ENROUTE. WHILE TRANSITIONING TO FORWARD FLIGHT AT APPROXIMATELY 75 FT, THE CREW FELT THE ACFT YAW LT, HEARD A DECREASE IN ENGINE NOISE AND EXPERIENCED A LOSS OF AVAILABLE POWER. THE ACFT WAS STILL POS
- [SDR JTAA2016F00175](https://openairdocs.org/sdr/JTAA2016F00175.md): Engine · damaged · Aug 26, 2016 · N905CH · Skrsky S61N · Engine (Turbine/Turboprop)
  > THE SIC NOTICED THE ENGINE INSTRUMENT INDICATIONS WERE DISPLAYING IRREGULAR INDICATIONS WHILE OVER A LAKE FILLING A WATER BUCKET. NR 2 ENGINE ROLLED BACK TO IDLE AND WOULD NOT ACCELERATE. TRANSMISSION INDICATIONS WERE NORMAL APART FROM A TORQUE SPLIT. NOSED
- [SDR 39LA20160825167](https://openairdocs.org/sdr/39LA20160825167.md): Pump · leaking · Aug 25, 2016 · N103WF · Skrsky S61N · Engine Fuel Pump
  > REPORTED A VERY INTENSE FUEL ODOR RETURNING DEPARTURE AT THE END OF AN 8 HOUR CONOP. DURING REFUELINGS THROUGHOUT THE DAY, OCCASIONAL DROPS OF FUEL WERE NOTICED AT THE NR 2 ENGINE GAIN DRAIN. THE NR 2 ENGINE DRAIN LINES FROM THE ENGINE PLATFORM TO THE ACFT F
- [SDR 39LA20160817166](https://openairdocs.org/sdr/39LA20160817166.md): Drain · plugged · Aug 17, 2016 · N103WF · Skrsky S61N · Engine Drains
  > DURING THE FIRST 3.6 HRS OF FLIGHT, 7 LEGS REPORTED, THE CREW DETECTED AN OVERWHELMING ODOR OF JET FUEL IN THE COCKPIT AND CABIN DURING CLIMBS AND DESCENTS. THE PILOT IN COMMAND EXPERIENCED A STRONG HEADACHE AND ONCOMING NAUSEA. THE SECOND IN COMMAND ALSO CO
- [SDR 39LA20160512156](https://openairdocs.org/sdr/39LA20160512156.md): Fire Loop · faulty · May 12, 2016 · N261F · Skrsky S61N · Fire Detection
  > AFTER TAKEOFF, THE NR 2 ENG FIRE INDICATOR & FIRE T HANDLE ILLUMINATED. THE CREW CHIEF ON BOARD VISUALLY VERIFIED THAT NO FIRE EXISTED. NO EMER WAS DECLARED & THE ACFT RETURNED WITHOUT INCIDENT. R & R THE AFT SEGMENT OF FIRE LOOP ON THE NR 2 ENG. PERFORMED
- [SDR 39LA20160426155](https://openairdocs.org/sdr/39LA20160426155.md): Skin Panel · corroded · Apr 26, 2016 · N805AR · Skrsky S61N · Fuselage Main, Plate/Skin
  > INTERGRANULAR CORROSION FOUND ON AFT LOWER SKIN OF ACFT, LOCATED AT AREA OF FS 292 - 323, WL 85, BL 35R OUTER RT SIDE OF AFT FUEL BAY. CORROSION MOSTLY LEVEL 1. LEVEL 3 IN ONE AREA APPROX 3 INCH AREA. REPAIRED CORROSION & FABRICATED FILLER & DOUBLER IAW EO1
- [SDR 39LA20160414154](https://openairdocs.org/sdr/39LA20160414154.md): Hydraulic Line · blown · Apr 14, 2016 · N408FS · Skrsky S61N · Hydraulic System, Main
  > AFTER TAKEOFF & DURING CLIMB OUT, THE PRIMARY HYDRAULICS BEGAN TO FLUCTUATE. THE MASTER CAUTION & PRIMARY HYD LIGHT ILLUMINATED. EMERGENCY PROCEDURES PERFORMED. LANDED ACFT WITH NO INCIDENT. R & R BLOWN PRIMARY HYD HOSE, PN SS40CT6C206000. LEAK CHECKS WER
- [SDR 39LA20160412153](https://openairdocs.org/sdr/39LA20160412153.md): Relay · failed · Apr 12, 2016 · N408HH · Skrsky S61N · DC Generating System
  > AFTER LANDING, AN ODOR OF ELEC BURNING WAS DETECTED IN THE COCKPIT. THERE WERE NO UNUSUAL INDICATIONS ON COCKPIT GAUGES TO INDICATE ELEC MALFUNCTION. ACFT EMER SHUTDOWN PROCEDURES WERE ACCOMPLISHED. UPON INSPECTION, SMOKE WAS FOUND IN THE AUXILIARY BATTERY
- [SDR 39LA20160410152](https://openairdocs.org/sdr/39LA20160410152.md): Relay · burned out · Apr 10, 2016 · N408HH · Skrsky S61N · Battery/Charger System
  > ON SHORT FINAL, THE ALTERNATE BATTERY OFF LIGHT ILLUMINATED. THERE WAS ALSO A SMELL OF BURNING PLASTIC. LANDING ACCOMPLISHED WITH NO OTHER PROBLEMS. TROUBLE SHOT ALTERNATE BATTERY SYS & FOUND ALTERNATE BATTERY RELAY BURNED OUT. R & R RELAY PN A-770Q, SN C-
- [SDR JYER20160209001](https://openairdocs.org/sdr/JYER20160209001.md): Bearing · worn · Feb 9, 2016 · N617CK · Skrsky S61N · Accessory Gearboxes
  > ENGINE WAS REMOVED FROM AIRCRAFT DUE TO AN IN FLIGHT NR 2 ENGINE CHIP LIGHT. THE FRONT FRAME ACCESSORY DRIVE GEARBOX CHIP WAS REMOVED AND DETERMINED TO BE THE SOURCE OF THE LIGHT. THE MATERIAL FOUND ON THE CHIP DETECTOR HAD ALL THE APPEARANCES OF A PORTION O
- [SDR 39LA20160204151](https://openairdocs.org/sdr/39LA20160204151.md): Access Panel · missing · Feb 4, 2016 · N805AR · Skrsky S61N · Service Doors
  > THE FLIGHT CREW, DURING POST FLIGHT INSPECTION, DISCOVERED THAT THE AFT LT TRANSMISSION OIL COOLER ACCESS PANEL WAS MISSING.
- [SDR CA160126012](https://openairdocs.org/sdr/CA160126012.md): Blade · cracked · Jan 24, 2016 · Skrsky S61N · Main Rotor Blades
  > (CAN) POST FLIGHT INSPECTION REVEALED A CRACK IN THE UNDER SIDE AND AFT FACE OF THE POCKET SKIN OF THE BLADE AT APPROXIMATELY 48" OTBD OF THE CUFF. MFG HAS BEEN NOTIFIED.
- [SDR 39LA20151206150](https://openairdocs.org/sdr/39LA20151206150.md): Servo · leaking · Dec 6, 2015 · N261F · Skrsky S61N · Rotorcraft Servo System
  > DURING CRUISE FLIGHT, THE FLIGHT CREW SMELLED AN ODOR. THE CREW CHIEF DISCOVERED A HYD LEAK, THE DECISION WAS MADE TO DIVERT. THE FLIGHT CONTINUED WITHOUT FURTHER INCIDENT. R & R AUXILIARY SERVO ASSEMBLY IAW S61N MM 65-44-0.
- [SDR 39LA20151117148](https://openairdocs.org/sdr/39LA20151117148.md): Unknown · fumes · Nov 17, 2015 · N116AZ · Skrsky S61N · Air Distribution System
  > APPROXIMATELY 2 MINUTES AFTER TAKEOFF, STRONG FUEL SMELL IN COCKPIT. FUMES APPEARED TO BE COMING THROUGH CABIN FLOOR, RETURNED.
- [SDR 39LA20151113149](https://openairdocs.org/sdr/39LA20151113149.md): Fire Loop · failed · Nov 13, 2015 · N61NH · Skrsky S61N · Fire Detection
  > ON FINAL APPROACH, THE NR 1 ENG FIRE WARNING LIGHT ILLUMINATED. THERE WAS NO FIRE OR OTHER INDICATIONS OF A FIRE, A NORMAL LANDING WAS PERFORMED. REPLACED NR 1 ENG AFT FIRE LOOP IAW SA4045-80 CH 26. OPERATIONS CHECKED GOOD. PART NUMBER 35620-0-575.
- [SDR 39LA20150910144](https://openairdocs.org/sdr/39LA20150910144.md): Access Panel · missing · Sep 10, 2015 · N805AR · Skrsky S61N · Fuselage Main, Plate/Skin
  > DURING POST FLIGHT INSPECTION, THE FLIGHT CREW DISCOVERED THAT THE LT SIDE TRANSMISSION MX PANEL WAS MISSING. REPLACED PANEL, REMOVED FROM THAT WAS INSPECTED & FOUND TO BE IN A SERVICEABLE CONDITION, THE PANEL WAS REPLACED IAW S-61MM CH 53-30-0. PANEL PN S61
- [SDR 39LA20150903143](https://openairdocs.org/sdr/39LA20150903143.md): Fire Loop · out of position · Sep 3, 2015 · N364FH · Skrsky S61N · Fire Detection
  > DURING HOVER THE NR 1 ENG FIRE LIGHT ILLUMINATED, FALSE FIRE WARNING. REPOSITIONED FIRE LOOP SENSOR AWAY FROM NR 1 ENG EXHAUST PIPE IAW MM 4045-80 CHP 26.
- [SDR CA150827012](https://openairdocs.org/sdr/CA150827012.md): Damper · failed · Aug 26, 2015 · Skrsky S61N · Main Rotor Head
  > (CAN) PERFORMED A MAIN ROTOR DAMPER TIMING TEST, WE HAVE FOUND THE DAMPER TO FAIL. UPON FURTHER INVESTIGATION IT WAS REMOVED DUE TO EXCESSIVE OIL LEAKAGE. THE DUST BOOT WAS REMOVED AND FOUND THAT THE PISTON WAS UNDERSIZED WHEN MEASURED IAW THE O/H MANUAL SA-4
- [SDR 39LA20150823141](https://openairdocs.org/sdr/39LA20150823141.md): Elec Connector · shorted · Aug 23, 2015 · N803AR · Skrsky S61N · Electrical Power System Wiring
  > DURING CRUISE THE FLIGHT CREW NOTICED AN ODOR THAT SMELLED LIKE AN ELEC FIRE. THE MASTER CAUTION FOR THE NR ONE GEN ILLUMINATED WITH THE AFCS SIMULTANEOUSLY SHUTTING OFF SHORTLY AFTER THE ODOR. RE-ENGAGED THE AFCS, THE NR ONE GEN WOULD NOT RESET. THE EMER C
- [SDR 39LA20150713140](https://openairdocs.org/sdr/39LA20150713140.md): Gearbox · low pressure · Jul 13, 2015 · N116AZ · Skrsky S61N · Main Rotor Gearbox
  > DURING CRUISE FLIGHT THE MASTER CAUTION WARNING LIGHT ILLUMINATED FOR THE TRANSMISSION LOW OIL PRESS WITH ASSOCIATED PRESS GAUGE READING OF 20 PSI. AN OFFSITE LANDING WAS PERFORMED WITHOUT INCIDENT.
- [SDR CA150708013](https://openairdocs.org/sdr/CA150708013.md): Pump · seized · Jul 7, 2015 · Skrsky S61N · Hydraulic Pump (Electric/Engine), Main
  > (CAN) DURING PREFLIGHT INSPECTION, MAIN ROTOR COULD NOT BE MANUALLY ROTATED IN THE DIRECTION OF ROTATION. UTILITY HYDRAULIC PUMP WAS FOUND TO BE SEIZED. AFTER PUMP REPLACEMENT, ROTOR TURNS NORMALLY.
- [SDR 39LA20150701139](https://openairdocs.org/sdr/39LA20150701139.md): Unknown · malfunctioned · Jul 1, 2015 · N408UD · Skrsky S61N · Brake
  > AFTER LANDING & DURING TAXI, NORMAL BRAKING WOULD NOT STOP THE ACFT.
- [SDR JYEA2015FA0000211](https://openairdocs.org/sdr/JYEA2015FA0000211.md): Pressure Switch · intermittent · May 13, 2015 · N615CK · Skrsky S61N · Hydraulic Indicating System
  > WHEN TESTING HYD SYS USING MOGEN AND SELECTING PRIMARY OFF, IT WOULD NOT. AFTER THE THIRD SELECTION TO OFF, IT FINALLY TURNED OFF SECURING PRESSURE TO PRIMARY WITH A CAUTION LIGHT ILLUMINATED. FURTHER CHECKS OF THE INTERLOCK SYSTEM WERE NORMAL. ON THE PREVI
- [SDR 39LA20150329132](https://openairdocs.org/sdr/39LA20150329132.md): Window · departed · Mar 29, 2015 · N408UD · Skrsky S61N · Emergency Exits
  > DURING INITIAL CLIMB THE CREW CHIEF NOTIFIED THE PILOT THAT THE LT EMER EXIT WINDOW DEPARTED THE ACFT. INSTALLED SERVICEABLE WINDOW IAW MM CHAPTER 52.
- [SDR 39LA20150221108](https://openairdocs.org/sdr/39LA20150221108.md): Switch · failed · Feb 21, 2015 · N612RM · Skrsky S61N · Fire Detection
  > 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 & R FIRE WARNING TEST SWITCH IAW MM CHAPT 26-10-0. OPERATIONS CHECKED GOOD AT THIS TIME.
- [SDR 39LA20150220107](https://openairdocs.org/sdr/39LA20150220107.md): Connector · dirty · Feb 20, 2015 · N612RM · Skrsky S61N · Fire Protection System Wiring
  > 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 CONNECTORS IAW MM CHAPT 26-10-3.
- [SDR 39LA20141221104](https://openairdocs.org/sdr/39LA20141221104.md): Engine · malfunctioned · Dec 21, 2014 · N612RM · Skrsky S61N · Engine (Turbine/Turboprop)
  > 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 AUTOMATICALLY, FLAME OUT.
- [SDR CA141024019](https://openairdocs.org/sdr/CA141024019.md): Gearbox · making metal · Oct 24, 2014 · Skrsky S61N · Main Rotor Gearbox
  > (CAN) PRIOR TO TAKEOFF FOR FIRST FLIGHT OF THE DAY, THE MAIN GEAR BOX CHIP LIGHT ILLUMINATED. HELICOPTER WAS SHUTDOWN AND METAL WAS FOUND IN THE OIL STRAINER "COARSE SCREEN". TRANSMISSION WILL BE SENT TO O/H SHOP FOR FURTHER INVESTIGATION.
- [SDR 39LA20141023103](https://openairdocs.org/sdr/39LA20141023103.md): Control Panel · shorted · Oct 23, 2014 · N61NH · Skrsky S61N · Aircraft Fuel Distribution System
  > DURING CRUISE FLIGHT, SMOKE & ELEC FIRE SMELL ROSE NEAR THE CTR OF THE WINDSCREEN. FLIGHT CREW ELECTED TO RETURN TO DEPARTURE AIRPORT & SAFELY LANDED. UPON INSPECTION FOUND FUEL BOOST PUMP CONTROL PANEL TO BE SHORTED. R & R FUEL PANEL.
- [SDR 39LA2014072382](https://openairdocs.org/sdr/39LA2014072382.md): Fire Warning · false activation · Jul 23, 2014 · N408HH · Skrsky S61N · Fire Detection
  > DURING CRUISE FLIGHT THE NR 1 ENG FIRE WARNING LIGHT ILLUMINATED INTERMITTENTLY. IT WAS DETERMINED TO BE A FALSE FIRE WARNING & LANDED WITHOUT FURTHER INCIDENT.
- [SDR CA140624003](https://openairdocs.org/sdr/CA140624003.md): Shaft · damaged · Jun 24, 2014 · Skrsky S61N · Main Rotor Gearbox
  > (CAN) DURING MAIN GEAR BOX O/H, AND SUBSEQUENT INSPECTION OF THRU-SHAFT, RUN-OUT CHECK INDICATED A 0.012" BULGE AT THE FORWARD END. THIS MAY HAVE OCCURRED DURING REMOVAL OF THE END PLUG, IAW THE MANUAL. THIS IS THE SECOND SUCH EVENT IN A SHORT TIME, THE OTHER
- [SDR 39LA2014061171](https://openairdocs.org/sdr/39LA2014061171.md): Control Panel · failed · Jun 11, 2014 · N408HH · Skrsky S61N · Audio Integrating System
  > DURING TAKEOFF, THE PILOTS RADIO WAS INTERMITTENT DURING TRANSMISSIONS. RETURNED WITHOUT INCIDENT. REMOVED AUDIO CONTROL PANEL PN N301A-000, SN 61424 & INSTALLED AUDIO CONTROL PANEL PN N301A-000, SN 63385 IAW MM, OPERATIONS CHECKED GOOD.
- [SDR CA140424014](https://openairdocs.org/sdr/CA140424014.md): Housing · cracked · Apr 17, 2014 · Skrsky S61N · Main Rotor Gearbox
  > (CAN) CRACKS WERE FOUND ON QTY 4 OF THE LUGS THAT ATTACH THE TOP HOUSING TO THE MAIN GEAR BOX. THE CRACKS EXTEND FROM OTBD EDGE TO SCREW HOLES THAT ATTACH A REWORK SHIM TO THE LOWER SURFACE OF THE HOUSING. THE REWORK WAS CARRIED OUT IAW RDC P-RH98-126/D, AND

Next page: https://openairdocs.org/model/sikorsky-s-61n/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE aircraft_model_key = 'S61N'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/sikorsky-s-61n/reports

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