# Erickson S-64F - Type: Aircraft model (FAA registry) - Registry code: 7400001 - Manufacturer (registry): ERICKSON - Model: S-64F - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 2 · Turbo-shaft - Seats: 5 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H6EA](https://openairdocs.org/tcds/H6EA) (OpenAirDocs) - Holder: Erickson Incorporated DBA Erickson Air-Crane - Registered aircraft: 1 - Page: https://openairdocs.org/model/erickson-s-64f Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2013-23-07](https://openairdocs.org/ad/2013-23-07): Main Rotor Blades · Erickson Air-Crane S-64E and S-64F. Effective Dec 27, 2013 - [AD 2012-26-06](https://openairdocs.org/ad/2012-26-06): Main Rotor Drive System and Tail Rotor System · Erickson Air-Crane S-64F. Effective Apr 16, 2013 - [AD 2012-23-11](https://openairdocs.org/ad/2012-23-11): Rotorcraft Tail Boom · Erickson Air-Crane S-64F. Effective Jan 14, 2013 - [AD 2011-21-12](https://openairdocs.org/ad/2011-21-12): Rotating swashplate assembly · Erickson Air-Crane S-64F. Effective Dec 1, 2011 - [AD 76-06-01](https://openairdocs.org/ad/76-06-01): Hydraulic Pumps · Erickson Air-Crane S-64A, S-64E, S-64F and 12 more. Effective Mar 24, 1976 - [AD 75-11-11](https://openairdocs.org/ad/75-11-11): Gear Box Shaft and Gear Assy · Erickson Air-Crane S-64E and S-64F. Effective Dec 2, 1975 Historical (superseded or no longer in force): - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 97-10-15](https://openairdocs.org/ad/97-10-15) (historical): Main Gearbox Second Stage Lower Planetary Plate · Erickson Air-Crane S-64F. Effective Jun 27, 1997 - [AD 77-20-01](https://openairdocs.org/ad/77-20-01) (historical): Main Transmission Lower Planetary Plates · Erickson Air-Crane S-64E and S-64F ## Registered aircraft (1) - [N610HX](https://openairdocs.org/aircraft/N610HX): [Helicopter Express LLC](https://openairdocs.org/faa-owner/HELICOPTER%20EXPRESS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1967, S/N 64F5001 ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB SEA05RA139](https://openairdocs.org/ntsb/SEA05RA139), Jul 6, 2005: Erickson Air-Crane S-64F (N236AC), Rome, Italy, destroyed, 1 fatal ## FAA accident and incident reports (3) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20131116023269I](https://openairdocs.org/incident/20131116023269I), Nov 16, 2013: Erickson S64F (N171AC), Houston, TX, No damage. A lift occurred on November 16, 2013, where the crew and aircraft dropped an empty sling harness from the aircraft causing minor building damage in the safe… - [Incident 20110607013519I](https://openairdocs.org/incident/20110607013519I), Jun 7, 2011: Erickson S64F (N237AC), Plaster City, CA, No damage. On June 7, 2011, a san diego gas & electric SK-64F , N237AC, an Erickson air crane, operating under external load certificate no. 85DL967M,was performing an… - [Accident 20050706014939A](https://openairdocs.org/incident/20050706014939A), Jul 6, 2005: Skrsky S64F (N236AC), Roma, Destroyed, 1 fatal. (-23) On July 6, 2005, at approximately 1630 central european summer time, an erickson air-crane, IN., S-64F helicopter, N236AC, was destroyed following impact… ## Service difficulty reports (70, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR JYDR20201013282](https://openairdocs.org/sdr/JYDR20201013282), Oct 13, 2020: ATTACH BOLT. BROKEN. PILOTS SUDDENLY FELT A VIBRATION AND HEARD A HOWLING NOISE. THEY RETURNED TO THE LANDING SITE AND SHUT DOWN. AT INSPECTION, MAINTENANCE FOUND 1 OF 3 NAS628-15 B - [SDR JYDR20201008218](https://openairdocs.org/sdr/JYDR20201008218), Oct 7, 2020: ENGINE. OVERTEMP. AIRCRAFT WAS ON SHORT FINAL AT 50 FT AGL WHEN NR 1 ENGINE LOW SPEED CHIME CAME ON. PILOT NOTED DECREASING N1 RPM WITH RISING T% (ROLLBACK). PROPER ENGINE IDENTI - [SDR JYDR20180713190](https://openairdocs.org/sdr/JYDR20180713190), Jul 11, 2018: DISC. CRACKED. DURING INSPECTION IAW AD 97-02-13 USING AMOC LETTER. 6 CRACKS WERE FOUND AT THE TIE BOLT THROUGH HOLES. CRACKS WERE FOUND WITH BOTH FPI AND EDDY CURRENT. AD STA - [SDR JYDR20170922257](https://openairdocs.org/sdr/JYDR20170922257), Sep 20, 2017: CYLINDER DAMPER. CRACKED. DURING OVERHAUL, A CRACK WAS FOUND IN THE DAMPER BARREL EXTENDING HOLE TO HOLE AND INTO THE CHECK VALVE BORE. - [SDR JYDR20170831240](https://openairdocs.org/sdr/JYDR20170831240), Aug 29, 2017: B-NUT. LOOSE. WHEN AIRCRAFT TOUCHED DOWN DURING HOVER LANDING A VIBRATION (IMBALANCE) WAS FELT IN THE ROTOR SYSTEM. PILOT SHUT DOWN AIRCRAFT AND IT WAS TOWED TO MAINTENANCE B - [SDR JYDR20170609239](https://openairdocs.org/sdr/JYDR20170609239), Jun 8, 2017: BLADE. CRACKED. MAIN ROTOR BLADE WAS REMOVED FOR BIM INDICATION. BLADE INSPECTED AND A 2.3 INCH CRACK WAS FOUND ON THE SPAR, ON BOTTOM OF BLADE, UNDER POCKET 17, 167.25 INCHES - [SDR JYDR20170316074](https://openairdocs.org/sdr/JYDR20170316074), Mar 14, 2017: AXLE. FAILED. AIRCRAFT JUST STARTED TO TAXI. AS PILOT RELEASED NOSE WHEEL LOCK THE NOSE WHEEL AXLE BROKE CAUSING LOSS OF NOSE WHEEL. AIRCRAFT WAS STILL ON GROUND AND HAD JUST - [SDR JYDR20160422098](https://openairdocs.org/sdr/JYDR20160422098), Apr 21, 2016: BEARING RACE. CRACKED. FOUND HORIZONTAL HINGE PIN INNER BEARING RACE CRACKED DURING REPAIR. MRH HAD 292.3 HRS. REMAINING TO O/H. MFG HAS BEEN INFORMED. - [SDR JYDR2013110801239](https://openairdocs.org/sdr/JYDR2013110801239), Nov 8, 2013: SERVO. WORN. DURING A SCHEDULED MAIN GEAR BOX CHANGE, THE LT LATERAL PRIMARY SERVO WAS FOUND TO HAVE A SEVERELY WORN BOLT AND BUSHING AT THE LOWER PIVIT FOLLOW UP ARM. SERVO - [SDR JYDR2013110800239](https://openairdocs.org/sdr/JYDR2013110800239), Nov 8, 2013: SERVO. WORN. DURING A SCHEDULED MAIN GEAR BOX CHANGE, THE LT LATERAL PRIMARY SERVO WAS FOUND TO HAVE A SEVERELY WORN BOLT AND BUSHING AT THE LOWER PIVIT FOLLOW UP ARM. SERVO - [SDR 2006FA0001136](https://openairdocs.org/sdr/2006FA0001136), Oct 6, 2006: BEARING. CRACKED. (REF NR MDR06-089) THE IGB CHIP DETECTOR INDICATED A CHIP LIGHT. IGB WAS REMOVED AND THE INNER RACE WAS FOUND TO BE CRACKED THROUGH AND SPALLED. PROBABLE CAUSE: - [SDR 2005FA0001553](https://openairdocs.org/sdr/2005FA0001553), Sep 14, 2005: STATOR. SHEARED. (REF NR MDR05-080) INSPECTION WAS PERFORMED ON 1ST STAGE STATOR AND SHOWED SIGNS OF FOD. UPON FURTHER INSPECTION IST WAS DETERMINED THAT TWO RIVETS (MFG HEAD) H - [SDR 2005FA0000819](https://openairdocs.org/sdr/2005FA0000819), Apr 14, 2005: GEAR. CRACKED. TGB AND SERVO ASSY REMOVED FROM ACRFT FOR MAKING METAL. GEARBOX DISASSEMBLED AND DURING VISUAL INSP OF OUTPUT GEAR, ONE TOOTH FOUND CRACKED. FRIVE SIDE OF TOOTH - [SDR 2005FA0000820](https://openairdocs.org/sdr/2005FA0000820), Apr 13, 2005: TURBINE BLADES. BROKEN. COMPRESSOR ASSY WAS REMOVED FROM AC FOR FAILING VIBRATION ANALYSIS. DURING THE PRELIMINARY INSPECTION IT WAS NOTED THAT A PIECE OF 2ND STAGE TURBINE BLADE OUTER - [SDR 2005FA0000340](https://openairdocs.org/sdr/2005FA0000340), Jan 10, 2005: BEARING RACE. CRACKED. (MDR05-072) THE MRH SLEEVE AND SPINDLE ASSY DEVELOPED AN OIL LEAK WHILE ON AIRCRAFT AND WAS NOTED DURING ROUTE INSPECTION. UPON REMOVAL AND REPLACEMENT WITH A S - [SDR JYDRMDR04069](https://openairdocs.org/sdr/JYDRMDR04069), Dec 6, 2004: HOUSING. CRACKED. MGB WAS REMOVED FOR MAIN SHAFT REPLACEMENT AND OVERHAUL. AFTER DISASSEMBLY OF GEAR BOX, THE UPPER HOUSING WAS LOCALLY BLENDED, ETCHED UNDER THE INPUTS AND INSPE - [SDR 2005FA0000000](https://openairdocs.org/sdr/2005FA0000000), Nov 30, 2004: BEVEL GEAR. CRACKED. DURING NDT INSPECTION, GEAR WAS MPI`D AND REJECTED FOR CRACKS. LOCATION OF CRACKS WERE IN ATTACHMENT FLANGE BOLT HOLES (18 EACH). EVERY HOLE HAS APPROXIMATELY . - [SDR MDR03032](https://openairdocs.org/sdr/MDR03032), Oct 2, 2004: BLEED VALVE. OBSTRUCTED. NR 1 ENG OIL PRESS WAS INDICATING LOWER THAN NR 2 ENG. PRESS INDICATED 45 PSI. ADJUSTED PRESS VALVE TO INCREASE CHECK AT NEXT FLT. NR 1 ENG WAS STARTED, INDICAT - [SDR 2004F00284](https://openairdocs.org/sdr/2004F00284), Jul 15, 2004: SPACER. CRACKED. COMPRESSOR ASSY WAS REMOVED FROM AN AIRCRAFT FOR A 1000 HOURS SCHEDULED HOT SECTION INSPECTION. DURING TEST RUN, THE ENGINE EXPERIENCED VIBES WHICH WERE OUT OF - [SDR 2004F00335](https://openairdocs.org/sdr/2004F00335), Jul 14, 2004: SEAL. BROKEN. COMPRESSOR ASSY REMOVED FROM A/C FOR A 1000 TSO SCHED HOT SECTION INSP. DURING INSP, EVIDENCE RUBBING BETWEEN OUTER SHROUD OF 1ST STAGE N1 BLADES & 1ST STATE OU - [SDR MDR03036](https://openairdocs.org/sdr/MDR03036), Nov 20, 2003: HOUSING. CRACKED. THE TGB CENTER HOUSING WAS FOUND CRACKED WHILE INSTALLED ON THE AIRCRAFT. IT WAS REMOVED PREMATURELY ON DECEMBER 20, 2000. THE SHOP DETECTED THE CRACK VISUALLY. - [SDR MDR03029](https://openairdocs.org/sdr/MDR03029), Nov 20, 2003: HOUSING. CRACKED. TGB CTR HSG FOUND CRACKED WHILE INSTALLED ON AC. IT WAS REMOVED PREMATURELY HAVING A TSO OF 974.7 HR. VISUALLY DETECTED INDIC IN OB WEB OF LT MOUNTING LUG. HSG - [SDR MDR03034](https://openairdocs.org/sdr/MDR03034), Nov 18, 2003: GEAR. CRACKED. TAIL ROTOR GEARBOX WAS REMOVED FROM AC FOR MAKING METAL. TAIL ROTOR GEARBOX WAS DISASSEMBLED IN THE OVERHAUL SHOP AND VISUALLY FOUND A CRACKED GEAR TOOTH ON THE - [SDR MDR03031](https://openairdocs.org/sdr/MDR03031), Oct 2, 2003: BEARING. FAILED. CREW REMOVED M/R HEAD AFTER LOCK SCREW SECURING LOCK SHEARED FOR SECOND TIME ON SPINDLE ASSY DESIGNATED AS GREEN. DURING TEARDOWN OF GREEN SPINDLE ASSY AFTER RE - [SDR MDR03030](https://openairdocs.org/sdr/MDR03030), Sep 24, 2003: PLATE. CRACKED. DURING THE MAGNETIC PARTICLE INSPECTION OF THE 2ND STAGE PLANETARY PLATE, A CRACK WAS DETECTED. THE CRACK IS LOCATED IN THE .125 INCH R. FROM THERE, IT TRAVELS - [SDR MDR03028](https://openairdocs.org/sdr/MDR03028), Aug 12, 2003: STRAP. CRACKED. THE STRAP IS CRACKED ON THE INBOARD SIDE OF THE BLADE APPROXIMATELY 9.25 INCHES FROM THE TRAILING EDGE OF THE FAIRING. THE CRACK STARTS AT THE CUFF END OF THE B - [SDR MDR03027](https://openairdocs.org/sdr/MDR03027), Aug 12, 2003: STRAP. CRACKED. ON THE INBOARD SIDE OF THE BLADE, THERE IS A CRACK IN THE STRAP AND POCKET. THE CRACK STARTS AT THE ROOT END SIDE OF THE STRAP AND EXTENDS 3.75 INCHES TOWARD TH - [SDR MDR03024](https://openairdocs.org/sdr/MDR03024), Aug 12, 2003: FITTING. CRACKED. UPON POST-FLIGHT INSPECTION, FIELD MAINTENANCE PERSONNEL DISCOVERED THE LOWER FITTING TGB, PN 6420-66345-101, CRACKED AT THE AFT LOWER LEFT-HAND CORNER. THE CRA - [SDR MDR03018](https://openairdocs.org/sdr/MDR03018), Jul 3, 2003: STRAP. CRACKED. THE STRAP IS CRACKED N THE OUTBOARD SIDE OF THE BLADE, APPROXIMATELY 9.125 INCHES FROM THE TRAILING EDGE. THE CRACK STARTS AT THE CUFF END OF THE BLADE AND EXTE - [SDR JYD2003F00001](https://openairdocs.org/sdr/JYD2003F00001), Mar 4, 2003: PRESSURE PANEL. CRACKED. PRESSURE PLATE (PN 65101-11016-041) FOUND CRACKED. MAIN ROTOR HEAD (MRH) REMOVED FROM SERVICE DUE TO SEVERE STORM DAMAGE WITH A TT 3772.9 AND A TSO 754. DURING - [SDR JYD2002F00001](https://openairdocs.org/sdr/JYD2002F00001), Dec 6, 2001: SUPPORT. CRACKED. 3 CRACKS WERE FOUND IN LWR SUPPT E MODEL MN GEARBOX WAS REMOVED FROM SERVICE FOR O/H IN1995. IN DECEMBER OF 2001, SUPPT WAS MACHINED TO REMOVE CORROSION. AFTER - [SDR 2002F00105](https://openairdocs.org/sdr/2002F00105), Dec 6, 2001: SUPPORT. CRACKED. 3 CRACKS WERE FOUND IN LOWER SUPPORT OF MAIN ROTOR GEARBOX. - [SDR 20010613CW018](https://openairdocs.org/sdr/20010613CW018), May 21, 2001: BLADE. CRACKED. REMOVED FROM AIRCRAFT FOR BIM INDICATION. PERFORMED LEAK CHECK. DETECTED LEAK AND FOUND CRACK. CRACK IS CHORDWISE, AND .5000 INCH LONG WITH CORROSION PIT LOCATE - [SDR JYD2001F00000](https://openairdocs.org/sdr/JYD2001F00000), May 10, 2001: HINGE PIN. CRACKED. S-64F MAIN ROTOR HEAD HINGE PINS DO OCCASIONALLY CRACK FROM DAMPER NUT SAFETY HOLES (APPROX 15 PER CENT OF THE TIME), BUT TYPICALLY THE CRACKS TRAVEL OUTBOARD T - [SDR 20010606CW005](https://openairdocs.org/sdr/20010606CW005), May 10, 2001: HINGE PIN. CRACKED. S-64F MAIN ROTOR HEAD HINGE PINS DO OCCASIONALLY CRACK FROM DAMPER NUT SAFETY HOLES (APPROX. 15 PERCENT OF THE TIME), BUT TYPICALLY THE CRACKS TRAVEL OUTBOARD T - [SDR 20010427CW007](https://openairdocs.org/sdr/20010427CW007), Feb 6, 2001: SHAFT. CRACKED. DURING OVERHAUL, MAGNETIC PARTICLE INSPECTION REVEALED MULTIPLE INDICATION IN THE LOWER SPLINE AREA OF MAIN ROTOR SHAFT. LONGEST INDICATION MEASURED APPROX .500 - [SDR 20001018SH029](https://openairdocs.org/sdr/20001018SH029), Aug 16, 2000: GEAR. FAILED. 1ST STAGE PLANETARY PINION GEAR, PN 6435-20411-102, SN 1524, UNKNOWN TT, FAILED IN MAIN GEARBOX, PN 6435-20500-049, SN A6-165, LEAVING LARGE FRAGMENT OF FERROUS - [SDR 20000511SH040](https://openairdocs.org/sdr/20000511SH040), Apr 24, 2000: PLANETARY GEAR. FRACTURED. 1ST STAGE PLANETARY PINION GEAR, PN 6435-20411-102, SN 1477, HAVING AN UNKNOWN TT, FAILED IN MAIN GEARBOX, PN 6435-20500-048, SN A6-161. INSP REVEALED TWO-THIRD - [SDR 98ZZZX3342](https://openairdocs.org/sdr/98ZZZX3342), Aug 6, 1998: BEARING. DAMAGED. BEARING REMOVED FROM AN ENGINE DURING REPAIR WITH A TOTAL BEARING TIME OF 1,449.4 HOURS WITH NO PREVIOUS OVERHAULS. NO OTHER BEARING IN THE ENGINE WAS DISCREPAN - [SDR 98ZZZX2812](https://openairdocs.org/sdr/98ZZZX2812), Jul 6, 1998: ROLLERS. WORN. SUBMITTER STATED THIS MDR AFFECTS S-64E MODEL. ACFT WAS FLYING UNDER NORMAL CONDITIONS WHEN NR 1 AND NR 2 GEN WENT OFF-LINE AND INVERTER POWER WAS NEEDED FOR A/ - [SDR 98ZZZX2832](https://openairdocs.org/sdr/98ZZZX2832), Jun 30, 1998: BLADE. FAILED. NOTE: THE ACRONYM 'BIM' STANDS FOR BLADE INSPECTION METHOD AND IS A TERM REGISTERED BY SIKORSKY. THE INDICATOR SENSES PRESSURE WITHIN THE BLADE SPAR AND CHANGES - [SDR 98ZZZX2255](https://openairdocs.org/sdr/98ZZZX2255), Apr 24, 1998: BLADE. FRACTURED. ON 4-24-98, AIRCRAFT WAS ON A FIRE FIGHTING MISSION. DURING CLIMB-OUT, A LOUD 'BANG' SOUND OCCURRED, FOLLOWED BY A LEFT YAW. THE LOAD OF WATER WAS JETTISONED AN - [SDR 98ZZZX1742](https://openairdocs.org/sdr/98ZZZX1742), Apr 22, 1998: BLADE. CRACKED. MAIN ROTOR SPAR IS CRACKED 72.81 INCHES FROM TIP UNDER THE NR 6 POCKET, CLOSE (APPROXIMATELY .1 INCH) TO THE SPACE BETWEEN THE NR 6 AND NR 7 POCKETS. THE CRACK - [SDR 98ZZZX1743](https://openairdocs.org/sdr/98ZZZX1743), Apr 15, 1998: CENTER HOUSING. CRACKED. TAIL ROTOR GEARBOX WAS REMOVED FROM AIRCRAFT DUE TO A CRACK IN THE TAIL GEARBOX CENTER HOUSING WEB ADJACENT TO THE LOWER LEFT GEARBOX ATTACHMENT LUG. ENGINEERIN - [SDR 98ZZZX68](https://openairdocs.org/sdr/98ZZZX68), Dec 9, 1997: CASE. CRACKED. WHILE INSTALLED, AFT FLANGE OF CASE SN 225 FRACTURED 360 DEGREES WITHIN THE FLANGE WELD JOINT. FRACTURING OF AFT FLANGE ASSY ELIMINATED THE AFT MOUNT FROM ENG S - [SDR 97ZZZX4347](https://openairdocs.org/sdr/97ZZZX4347), Sep 17, 1997: BRACKET BOLT. CRACKED. DURING OVERHAUL OF THE MAIN ROTOR HEAD, A FLUORESCENT MAGNETIC PARTICLE INSPECTION REVEALED A TOTAL OF 4 CRACK INDICATIONS IN BOLT HEAD TO SHANK RADIUS. LARGEST - [SDR 97ZZZX3377](https://openairdocs.org/sdr/97ZZZX3377), Jul 10, 1997: MAIN SHAFT. CRACKED. PART WAS MPI'D AND FOUND TO HAVE ONE CRACK INDICATION LOCATED AT THE UPPER END OF THE LOWER SPLINES. THE INDICATION EXTENDS FROM THE SPLINE RADIUS AND GOES TOWA - [SDR 97ZZZX3013](https://openairdocs.org/sdr/97ZZZX3013), Jun 13, 1997: BLADE. CRACKED. BLADE OPERATED BY ERICKSON FOR APPROXIMATELY 350.0 HOURS AND WAS REMOVED FOR A BLACK BIM INDICATION. A NITROGEN LEAK WAS DETECTED BETWEEN BLADE POCKETS NR 24 AN - [SDR JYDR970328](https://openairdocs.org/sdr/JYDR970328), Mar 17, 1997: MAIN SHAFT. CRACKED. CRACKS FOUND IN LOWER SPLINES. CRACKS APPEAR TO START IN SPLINE RADIUS AND TRAVEL AT 45 DEGREES TOWARD THE SPLINE TOOTH. INDICATIONS ARE ON THE LOAD SIDE JUST A - [SDR 97ZZZX2478](https://openairdocs.org/sdr/97ZZZX2478), Mar 17, 1997: MAIN SHAFT. CRACKED. MGB MAIN SHAFT INSPECTION, CRACKS FOUND IN LOWER SPLINES. CRACKS APPEAR TO START IN SPLINE RADIUS AND TRAVEL AT 45 DEGREES TOWARD THE SPLINE TOOTH. INDICATIONS All 70: https://openairdocs.org/model/erickson-s-64f/reports.md ## STCs that may be installed (OpenAirDocs) (31) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SR11923SE](https://openairdocs.org/stc/SR11923SE): Installation of Helicopter Transport Services, LLC Shock Absorber HTS-2000. Helicopter Transport Services LLC - [STC SR11810SE](https://openairdocs.org/stc/SR11810SE): Installation of Helicopter Transport Services, LLC External Load Indicating System. Helicopter Transport Services LLC - [STC SR04343CH](https://openairdocs.org/stc/SR04343CH): Installation of Heli-Preheat Kit, p/n TA3193-1 for 115 volt application in accordance with Heli-Preheat Kit drawing TA3193-1 Revision D, dated December 11, 2023 or later FAA approved revisions and Preheat Kit Installation Instruction TNH3193 Revision B, dated July 6, 2018 or later FAA approved revisions. HARTZELL PROPELLER LLC - [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR02766SE](https://openairdocs.org/stc/SR02766SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR02717SE](https://openairdocs.org/stc/SR02717SE): Installation of Helicopter Transport Services Remote Fuel Sump System. Helicopter Transport Services LLC - [STC SR02684SE](https://openairdocs.org/stc/SR02684SE): Installation of Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pump. Helicopter Transport Services LLC - [STC SR00925DE](https://openairdocs.org/stc/SR00925DE): Installation of Garmin GTX 335/335R and GTX345/345R transponders to provide ADS-B Out and In functionality. Peregrine - [STC SR00004SE](https://openairdocs.org/stc/SR00004SE): Fabrication and installation of Erickson fire fighting system. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR00815SE](https://openairdocs.org/stc/SR00815SE): Fabrication and installation of Erickson Model Sea Snorkel system. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR09574RC](https://openairdocs.org/stc/SR09574RC): Installation of Night Vision Goggle Compatible Lighting System. Aero Dynamix Inc - [STC SR02055SE](https://openairdocs.org/stc/SR02055SE): Replacement tail rotor blades, Part Numbers 65161-00001-041MII and/or 65161-00001-043MII. Helicopter Transport Services LLC - [STC SH5653NM](https://openairdocs.org/stc/SH5653NM): Re-mounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson detuned engine mounting system (DEMS). Erickson Incorporaated/dba Erickson Air-Crane - [STC SR09415RC](https://openairdocs.org/stc/SR09415RC): Installation of Engine Monitoring System and Fuel Indication with multifunction displays (MFD-5200). Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH5764NM](https://openairdocs.org/stc/SH5764NM): Increase in maximum ground idle speed. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR00026SE](https://openairdocs.org/stc/SR00026SE): Fabrication and Installation of Erickson external load dynamic shock absorber system. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR01955NY-D](https://openairdocs.org/stc/SR01955NY-D): Installation of a Keystone Helicopter Anit-Rotational Restraint System. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR01611NY-D](https://openairdocs.org/stc/SR01611NY-D): Installation of a Keystone Helicopter cargo pod. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR09411RC](https://openairdocs.org/stc/SR09411RC): Installation of Environmental Control System. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR09412RC](https://openairdocs.org/stc/SR09412RC): Installation of Flight Display System. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR09413RC](https://openairdocs.org/stc/SR09413RC): Installation of Automatic Flight Control System. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR09414RC](https://openairdocs.org/stc/SR09414RC): Installation of Caution Advisory Panel. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR09416RC](https://openairdocs.org/stc/SR09416RC): Installation of Avionics System. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH5974NM](https://openairdocs.org/stc/SH5974NM): Replacement of existing combustion type cockpit heater with an engine bleed air type heater system. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH1618NM](https://openairdocs.org/stc/SH1618NM): Installation of externally mounted ferry tanks. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH3853NM](https://openairdocs.org/stc/SH3853NM): Modification of the Rotorcraft flight Manual. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH5724NM](https://openairdocs.org/stc/SH5724NM): Use of Mobil Oil Corporation Mobilith SHC220 synthetic grease to lubricate selected components in place of the previously approved grease. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH581NW](https://openairdocs.org/stc/SH581NW): Installation of a hydraulic hand pump on the rotor brake system. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SR00502SE](https://openairdocs.org/stc/SR00502SE): Fabrication and installation of Erickson Model 10333-101 (S-64E) or 10333-103 (S-64F) Water/Foam Cannon system. Erickson Air Crane Inc. dba Erickson Air-Crane - [STC SH546NW](https://openairdocs.org/stc/SH546NW): Installation of an electronic weighting system (for monitoring cargo and/or hoist hook weight). Measurement Systems Intl - [STC SH607NW](https://openairdocs.org/stc/SH607NW): Installation of mechanical release system for external cargo hook. McCallister Engineering Enterprises ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Sikorsky S-64F](https://openairdocs.org/model/sikorsky-s-64f): 5 registered aircraft, registry code 8142610 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.