# N493PH: 1999 Bell 407 - Status: Valid registration - Airframe: [Bell 407](https://openairdocs.org/model/bell-407) (registry code 1182206, 7 seats) - Engine: [Allison 250-C47 series](https://openairdocs.org/engine/allison-250-c47-series) (registry code 03029) - Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW) (Bell Textron Canada Limited), [TCDS E1GL](https://openairdocs.org/tcds/E1GL) (Rolls-Royce Corporation) (OpenAirDocs) - Serial number: 53393 - Year built: 1999 - Type: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, normal - Airworthiness date: February 28, 2004 - Certificate issued: March 20, 2017 - Expires: March 31, 2030 - Mode S code: A61C8A - Registered owner: [Phi Health LLC](https://openairdocs.org/faa-owner/PHI%20HEALTH%20LLC) - Location: [Tempe, AZ](https://openairdocs.org/faa-place/AZ/Tempe) - Owner type: LLC - Owner's area on the map: 33.4148° N, 111.9093° W: Placed by OpenAirDocs: center of Tempe, AZ, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=493PH - Page: https://openairdocs.org/aircraft/N493PH From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Allison 250-C47 model are included. ## ADs that may apply (OpenAirDocs): 49 in force ### Matched by airframe (Bell 407) - [AD 2026-14-07](https://openairdocs.org/ad/2026-14-07): Main rotor control · Bell Textron Canada 407. Effective Aug 21, 2026 - [AD 2026-10-04](https://openairdocs.org/ad/2026-10-04): Electrical connectors · Bell Textron Canada 407. Effective Jun 25, 2026 - [AD 2025-13-01](https://openairdocs.org/ad/2025-13-01): Main Rotor Blades · Bell Textron Canada 407 and 427. Effective Jul 8, 2025 - [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [AD 2024-10-12](https://openairdocs.org/ad/2024-10-12): Fuel system wiring · Bell Textron Canada 407. Effective Aug 22, 2024 - [AD 2023-17-51](https://openairdocs.org/ad/2023-17-51): Tail Rotor Blades · Bell Textron Canada 407. Effective Sep 21, 2023 - [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 2022-27-08](https://openairdocs.org/ad/2022-27-08): Rotorcraft Tail Boom · Bell Textron Canada 407. Effective Jan 12, 2023 - [AD 2022-23-02](https://openairdocs.org/ad/2022-23-02): Fuselage Structure · Bell Textron Canada 407. Effective Jan 3, 2023 - [AD 2021-19-01](https://openairdocs.org/ad/2021-19-01): Cabin Equipment/Furnishings · Shoulder harness restraint system (Bell Helicopter Textron STC SH2073SO or SH2751SO). Effective Oct 13, 2021 - [AD 2019-08-10](https://openairdocs.org/ad/2019-08-10): Main Rotor Drive System · Bell Helicopter Textron Canada 206A, 206B, 206L and 4 more. Effective Jun 24, 2019 - [AD 2018-25-17](https://openairdocs.org/ad/2018-25-17): Air Conditioning System Wiring · Airbus Helicopters 206A, 206B, 206L and 13 more. Effective Jan 22, 2019 - [AD 2018-10-06](https://openairdocs.org/ad/2018-10-06): Tail Rotor Drive Shaft · Bell Helicopter Textron Canada 407. Effective Jun 25, 2018 - [AD 2015-17-02](https://openairdocs.org/ad/2015-17-02): Main Rotor Drive System · Bell Helicopter Textron Canada 206L-4, 407, 427 and 1 more. Effective Sep 24, 2015 - [AD 2015-05-04](https://openairdocs.org/ad/2015-05-04): Fuselage Main, Longeron/Stringer · Bell Helicopter Textron Canada 407. Effective Apr 20, 2015 - [AD 2013-22-21](https://openairdocs.org/ad/2013-22-21): Emergency Flotation Section · Apical Industries, Inc. Emergency Float Kits (Dart Aerospace ULC STC SR01535LA). Effective Dec 13, 2013 - [AD 2013-22-01](https://openairdocs.org/ad/2013-22-01): Main Rotor Drive System · Bell Helicopter Textron Canada 206L-4 and 407. Effective Dec 5, 2013 - [AD 2013-20-05](https://openairdocs.org/ad/2013-20-05): Turbine Section · Bell Helicopter Textron Canada 407. Effective Dec 5, 2013 - [AD 2013-18-06](https://openairdocs.org/ad/2013-18-06): Main Rotor Control · Bell Helicopter Textron Canada 206A, 206B, 206L and 10 more. Effective Oct 17, 2013 - [AD 2012-18-09](https://openairdocs.org/ad/2012-18-09): Rotorcraft tailboom · Bell Helicopter Textron Canada 407. Effective Oct 22, 2012 - [AD 2012-14-07](https://openairdocs.org/ad/2012-14-07): Rotorcraft Servo System · Bell Helicopter Textron Canada 407 and 427. Effective Aug 3, 2012 - [AD 2011-25-01](https://openairdocs.org/ad/2011-25-01): Liferafts · Agusta AB412, AB412 EP, 206A and 23 more. Effective Jan 17, 2012 - [AD 2010-26-51](https://openairdocs.org/ad/2010-26-51): Tail rotor blade · Bell Helicopter Textron Canada 206A, 206B, 206L and 10 more. Effective Mar 25, 2011 - [AD 2009-25-08](https://openairdocs.org/ad/2009-25-08): Hydraulic pump driveshaft assembly · Bell Helicopter Textron Canada 407 and 427. Effective Dec 28, 2009 - [AD 2009-22-11](https://openairdocs.org/ad/2009-22-11): Swashplate link assembly bearing · Bell Helicopter Textron Canada 407 and 427. Effective Nov 16, 2009 - [AD 2009-07-52](https://openairdocs.org/ad/2009-07-52): Cyclic control lever assembly · Bell Helicopter Textron Canada 206A, 206A-1 (OH-58A), 206B and 7 more. Effective May 1, 2009 - [AD 2008-14-06](https://openairdocs.org/ad/2008-14-06): Horizontal stabilizers · Bell Helicopter Textron Canada 206L, 206L-1, 206L-3 and 2 more. Effective Aug 14, 2008 - [AD 2004-10-07](https://openairdocs.org/ad/2004-10-07): Oil cooler blower bearings · Bell Helicopter Textron Canada 407. Effective Jun 4, 2004 - [AD 2003-05-11](https://openairdocs.org/ad/2003-05-11): Swashplate outer ring · Bell Helicopter Textron Canada 407. Effective Apr 2, 2003 - [AD 2003-02-06](https://openairdocs.org/ad/2003-02-06): Tailboom gearbox support castings · Bell Helicopter Textron Canada 407. Effective Feb 10, 2003 - [AD 2002-22-10](https://openairdocs.org/ad/2002-22-10): Horizontal stabilizer slat (slat) · Bell Helicopter Textron Canada 407. Effective Nov 21, 2002 - [AD 2002-20-05](https://openairdocs.org/ad/2002-20-05): Rescue hoists · Agusta A109, A109A, A109A II and 31 more. Effective Nov 7, 2002 - [AD 2002-17-03](https://openairdocs.org/ad/2002-17-03): Fuel Filler Cap · Bell Helicopter Textron Canada 407. Effective Sep 20, 2002 - [AD 2002-11-09](https://openairdocs.org/ad/2002-11-09): Forward Bearing Hanger Bracket · Bell Helicopter Textron Canada 407. Effective Jul 16, 2002 - [AD 2001-13-02](https://openairdocs.org/ad/2001-13-02): Cockpit Warning Horns · Bell Helicopter Textron Canada 407. Effective Aug 1, 2001 - [AD 2001-01-52 R1](https://openairdocs.org/ad/2001-01-52-R1): Tail Rotor Blades · Bell Helicopter Textron Canada 407. Effective Jul 25, 2001 - [AD 2000-14-16](https://openairdocs.org/ad/2000-14-16): Tail Rotor System · Bell Helicopter Textron Canada 407. Effective Aug 29, 2000 - [AD 2000-04-25](https://openairdocs.org/ad/2000-04-25): Door Latch Assembly · Bell Helicopter Textron Canada 407. Effective Apr 12, 2000 - [AD 2000-04-20](https://openairdocs.org/ad/2000-04-20): Hydraulic Relief Valve · Bell Helicopter Textron Canada 407. Effective Apr 5, 2000 - [AD 99-22-13](https://openairdocs.org/ad/99-22-13): Fin Assembly For Reduced Skin Thickness Inspection · Bell Helicopter Textron Canada 407. Effective Dec 2, 1999 - [AD 98-19-13](https://openairdocs.org/ad/98-19-13): Driveshaft · Bell Helicopter Textron Canada 407. Effective Jan 27, 1999 - [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 1998 - [AD 98-12-22](https://openairdocs.org/ad/98-12-22): Tail Rotor Drive System Bearing Supports · Bell Helicopter Textron Canada 407. Effective Jul 15, 1998 - [AD 97-24-17](https://openairdocs.org/ad/97-24-17): Tail Rotor Drive Coupling Disc Pack · Bell Helicopter Textron Canada 407. Effective Apr 16, 1998 ### Matched by engine (Allison 250-C47 series) - [AD 2006-20-07](https://openairdocs.org/ad/2006-20-07): Adds an additional life limit for third- and fourth-stage turbine wheels · Rolls-Royce 250-C30, 250-C30G, 250-C30G/2 and 11 more. Effective Nov 2, 2006 - [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04): Inspection of the fuel nozzle screen · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Sep 7, 2006 - [AD 2004-24-04](https://openairdocs.org/ad/2004-24-04): Hydromechanical unit (HMU) Power Lever Angle (PLA) potentiometer · Rolls-Royce 250-C30R/3, 250-C30R/3M, 250-C47B and 1 more. Effective Jan 3, 2005 - [AD 98-10-03](https://openairdocs.org/ad/98-10-03): Hydromechanical Unit · Rolls-Royce 250-C47B. Effective May 26, 1998 - [AD 82-24-05](https://openairdocs.org/ad/82-24-05): Control Assembly and Power Turbine Governor Assembly · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Nov 26, 1982 ### 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 2014-04-07](https://openairdocs.org/ad/2014-04-07) (historical): Rotorcraft Tail Boom and Middle Section · Bell Helicopter Textron Canada 407. Effective Jul 28, 2014 - [AD 2013-12-07](https://openairdocs.org/ad/2013-12-07) (historical): Rotorcraft tailboom · Bell Helicopter Textron Canada 407. Effective Aug 1, 2013 - [AD 2011-15-51](https://openairdocs.org/ad/2011-15-51) (historical): Hydraulic servo actuators · Bell Helicopter Textron Canada 407 and 427. Effective Nov 14, 2011 - [AD 2009-08-03](https://openairdocs.org/ad/2009-08-03) (historical): Tail rotor blade (blade) · Bell Helicopter Textron 206A, 206B, 206L and 10 more. Effective Apr 24, 2009 - [AD 2009-07-51](https://openairdocs.org/ad/2009-07-51) (historical): Lever assembly bearing · Bell Helicopter Textron 206A, 206A-1 (OH-58A), 206B and 7 more - [AD 2007-19-52](https://openairdocs.org/ad/2007-19-52) (historical): Tail rotor blade (blade) · Bell Helicopter Textron 206A, 206B, 206L and 10 more. Effective Dec 5, 2007 - [AD 2005-03-07](https://openairdocs.org/ad/2005-03-07) (historical): Crosstube assembly · Bell Helicopter Textron Canada 407. Effective Mar 17, 2005 - [AD 2003-05-03](https://openairdocs.org/ad/2003-05-03) (historical): Tailboom · Bell Helicopter Textron Canada 407. Effective Apr 17, 2003 - [AD 2002-23-51](https://openairdocs.org/ad/2002-23-51) (historical): Swashplate drive link cup washers · Bell Helicopter Textron 407 - [AD 2002-06-52](https://openairdocs.org/ad/2002-06-52) (historical): Oil Cooler Blower Bearings · Bell Helicopter Textron 407. Effective May 2, 2002 - [AD 2001-13-51](https://openairdocs.org/ad/2001-13-51) (historical): Driveshafts · Bell Helicopter Textron Canada 206L-4, 407 and 427. Effective Oct 9, 2001 - [AD 2001-01-52](https://openairdocs.org/ad/2001-01-52) (historical): Airspeed · Bell Helicopter Textron 407. Effective Feb 21, 2001 - [AD 2000-20-18](https://openairdocs.org/ad/2000-20-18) (historical): Horizontal Stabilizer Slat · Bell Helicopter Textron 407. Effective Nov 22, 2000 - [AD 2000-06-10](https://openairdocs.org/ad/2000-06-10) (historical): Tail Boom · Bell Helicopter Textron 407. Effective Apr 14, 2000 - [AD 2000-02-12](https://openairdocs.org/ad/2000-02-12) (historical): Engine Oil Cooler Blower Shaft Bearings · Bell Helicopter Textron 407. Effective Mar 3, 2000 - [AD 99-23-18](https://openairdocs.org/ad/99-23-18) (historical): Revised Life Limit · Bell Helicopter Textron Canada 407. Effective Nov 30, 1999 - [AD 99-06-15](https://openairdocs.org/ad/99-06-15) (historical): Tail Rotor Blades · Bell Helicopter Textron 407. Effective Apr 22, 1999 - [AD 96-21-12 PL](https://openairdocs.org/ad/96-21-12-PL) (historical): Placard -- Inflight Engine Shut-downs · Bell Helicopter Textron 407 - [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09) (historical): Fuel nozzle · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 40 more. Effective Jan 5, 2005 - [AD 2003-13-10](https://openairdocs.org/ad/2003-13-10) (historical): Hydromechanical unit (HMU) power lever angle (PLA) · 250-C30R/3, 250-C30R/3M, 250-C47B and 1 more. Effective Jul 15, 2003 - [AD 97-21-09](https://openairdocs.org/ad/97-21-09) (historical): Engine Main Electrical Harness Assembly · 250-C47B. Effective Dec 3, 1997 - [AD 96-24-09](https://openairdocs.org/ad/96-24-09) (historical): Engine Main Electrical Harness Assembly · 250-C47B. Effective Nov 25, 1996 ## Information bulletins (advisory) (8 in force) - [SAIB SW-15-20](https://openairdocs.org/saib/SW-15-20): Air Conditioning System Wiring. Issued Aug 13, 2015 - [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012 - [SAIB SW-10-42R1](https://openairdocs.org/saib/SW-10-42R1): Emergency Float Kits. Issued Aug 11, 2010 - [SAIB SW-08-42](https://openairdocs.org/saib/SW-08-42): Emergency Float with Liferaft Kits (kits). Issued Aug 27, 2008 - [SAIB SW-05-70](https://openairdocs.org/saib/SW-05-70): . Issued Jul 21, 2005 - [SAIB SW-04-92](https://openairdocs.org/saib/SW-04-92): . Issued Sep 30, 2004 - [SAIB NE-06-52](https://openairdocs.org/saib/NE-06-52): . Issued Jul 6, 2006 - [SAIB NE-06-12R1](https://openairdocs.org/saib/NE-06-12R1): . Issued Jan 13, 2006 - [SAIB SW-10-42](https://openairdocs.org/saib/SW-10-42) (historical): Emergency Float Kits. Issued Aug 5, 2010 - [SAIB NE-06-12](https://openairdocs.org/saib/NE-06-12) (historical): . Issued Dec 2, 2005 ## NTSB investigations None matched to N493PH. ## FAA accident and incident reports None matched to N493PH. ## Service difficulty reports (103, newest 50) As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR HEER20190507882](https://openairdocs.org/sdr/HEER20190507882), May 7, 2019: SKIN. PUNCTURED. FORWARD SHELL ASSEMBLY INNER SKIN WAS FOUND TO BE DAMAGED - PUNCTURED UNDER THE EXISTING RT PASSENGER DOOR STRUT INSTALLATION. THE REPAIR DOCUMENTATION WILL BE - [SDR HEEA088026](https://openairdocs.org/sdr/HEEA088026), Jun 19, 2003: MAGNETIC SEAL. LEAKING. TRANSMISSION INPUT SEAL LEAKING. REPLACED MAG SEAL 206040156001 DUE TO PITTING. REPAIRED. - [SDR HEEA087429](https://openairdocs.org/sdr/HEEA087429), Jun 12, 2003: FLOAT. LEAKING. LEAKING AROUND FWD INSIDE RELIEF VALVE. TO BE SENT TO VENDOR FOR REPAIR. - [SDR HEEA087420](https://openairdocs.org/sdr/HEEA087420), Jun 11, 2003: DISC PACK. CRACKED. TAIL ROTOR DISC PACK CRACKED. - [SDR HEEA087419](https://openairdocs.org/sdr/HEEA087419), Jun 11, 2003: DISC PACK. CRACKED. TAIL ROTOR DISC PACK CRACKED. - [SDR HEEA087334](https://openairdocs.org/sdr/HEEA087334), Jun 11, 2003: COUPLING. CORRODED. SPLINE COUPLING HAS CORROSION ON SPLINES. REPLACED. - [SDR HEEA087300](https://openairdocs.org/sdr/HEEA087300), Jun 11, 2003: BEARING. WORN. MAIN ROTOR DRIVE HAS A BEARING WORN OUT. - [SDR HEEA087273](https://openairdocs.org/sdr/HEEA087273), Jun 11, 2003: PRESSURE SWITCH. INOPERATIVE. PRESSURE SWITCH INOPERATIVE, CAUTION LIGHT WILL NOT COME ON. TO BE SENT TO MFG. - [SDR HEEA087045](https://openairdocs.org/sdr/HEEA087045), Jun 4, 2003: LINK. WORN. MAIN ROTOR LINK WORN. - [SDR HEEA087028](https://openairdocs.org/sdr/HEEA087028), Jun 4, 2003: SEAL. LEAKING. SEAL LEAKING. TO BE SENT TO MFG FOR CREDIT. - [SDR HEEA087021](https://openairdocs.org/sdr/HEEA087021), Jun 4, 2003: PIN. WORN. MAIN ROTOR HEAD PIN WORN. - [SDR HEEA087020](https://openairdocs.org/sdr/HEEA087020), Jun 4, 2003: BUSHING. WORN. MAIN ROTOR HEAD BUSHINGS WORN. - [SDR HEEA087016](https://openairdocs.org/sdr/HEEA087016), Jun 4, 2003: PITCH LINK. WORN. LINK ASSY HAS WORN BUSHINGS. - [SDR HEEA087011](https://openairdocs.org/sdr/HEEA087011), Jun 4, 2003: LEVER. WORN. MAIN ROTOR LEVER ASSY HAS WORN BUSHINGS. - [SDR HEEA087001](https://openairdocs.org/sdr/HEEA087001), Jun 4, 2003: BLEED VALVE. MALFUNCTIONED. BLEED VALVE PRODUCING TOT HIGH IN FLIGHT. REPAIRED. - [SDR HEEA084396](https://openairdocs.org/sdr/HEEA084396), Feb 12, 2003: SEAL. LEAKING. GEARBOX INPUT SEAL LEAKING. REPAIRED. - [SDR HEEA084373](https://openairdocs.org/sdr/HEEA084373), Feb 11, 2003: POWER SUPPLY. FAILED. ANTI COLLISION LIGHT INOPERATIVE. POWER SUPPLY FAILED. - [SDR HEEA084298](https://openairdocs.org/sdr/HEEA084298), Feb 11, 2003: MOUNT. WORN. MAIN ROTOR GEARBOX MOUNT WORN. - [SDR HEEA084297](https://openairdocs.org/sdr/HEEA084297), Feb 11, 2003: MOUNT. WORN. MAIN ROTOR GEARBOX MOUNT WORN. - [SDR HEEA083930](https://openairdocs.org/sdr/HEEA083930), Jan 17, 2003: SPRING. BROKEN. MAIN ROTOR HEAD FRAHM ASSY HAS THREE CRACKED SPRINGS. - [SDR HEEA083922](https://openairdocs.org/sdr/HEEA083922), Jan 17, 2003: BELLCRANK. WORN. TAIL ROTOR CONTROL BELLCRANK HAS A WORN BEARING. - [SDR HEEA083912](https://openairdocs.org/sdr/HEEA083912), Jan 17, 2003: BEARING. WORN. IDLER PIVOT BEARING WORN. - [SDR HEEA083885](https://openairdocs.org/sdr/HEEA083885), Jan 16, 2003: UNIVERSAL. WORN. MAIN ROTOR UNIVERSAL HAS BEARING WEAR. - [SDR HEEA083873](https://openairdocs.org/sdr/HEEA083873), Jan 16, 2003: UNIVERSAL. WORN. MAIN ROTOR UNIVERSAL HAS BEARING WEAR. - [SDR HEEA083869](https://openairdocs.org/sdr/HEEA083869), Jan 16, 2003: UNIVERSAL. WORN. UNIVERSAL HAS BEARING WEAR. - [SDR HEEA083867](https://openairdocs.org/sdr/HEEA083867), Jan 16, 2003: FREEWHEEL UNIT. MALFUNCTIONED. FREEWHEEL UNIT CAUSING ENGINE VIBRATION FWD END AND ALSO FWD SEAL LEAKING. REPLACED FWU. - [SDR HEEA083865](https://openairdocs.org/sdr/HEEA083865), Jan 16, 2003: SEAL. LEAKING. FREEWHEEL UNINT FWD AND AFT SEAL LEAKING OIL. REPLACED FREEWHEEL UNIT. - [SDR HEEA083844](https://openairdocs.org/sdr/HEEA083844), Jan 16, 2003: BUSHING. WORN. MAIN ROTOR SWASHPLATE LINK BUSHINGS ARE WORN. - [SDR HEEA083799](https://openairdocs.org/sdr/HEEA083799), Jan 15, 2003: HYDROMECH UNIT. DAMAGED. HMU HAS SPLINE WEAR AND UNABLE TO BLEED. REPLACED WITH SERVICEABLE PART. - [SDR HEEA083790](https://openairdocs.org/sdr/HEEA083790), Jan 15, 2003: FILTER. BYPASSING. FILTER BYPASS INDICATOR POPPED. REPLACED WITH SERVICEABLE PART. - [SDR HEEA083775](https://openairdocs.org/sdr/HEEA083775), Jan 15, 2003: SHAFT. SHEARED. FADEC FAULT IN FLIGHT. FOUND PMA SHAFT SHEARED DUE TO FAILED BEARING IN PMA. REPLACED WITH SERVICEABLE PART. - [SDR HEEA083774](https://openairdocs.org/sdr/HEEA083774), Jan 15, 2003: BEARING. FAILED. FADEC FAULT IN FLIGHT. FOUND PMA SHAFT SHEARED DUE TO FAILED BEARING IN PMA. REPLACED WITH SERVICEABLE PART. - [SDR HEEA083741](https://openairdocs.org/sdr/HEEA083741), Jan 15, 2003: FITTING. CORRODED. SMALL END OF FITTING IS CORRODED. SCRAPPED. - [SDR HEEA083713](https://openairdocs.org/sdr/HEEA083713), Jan 15, 2003: PUMP. NOISY. HYD PUMP MAKING ABNORMAL NOISE. - [SDR HEEA083690](https://openairdocs.org/sdr/HEEA083690), Jan 15, 2003: BRUSHES. WORN. STARTER GEN BRUSHES WORN. REPAIRED. - [SDR HEEA083669](https://openairdocs.org/sdr/HEEA083669), Jan 15, 2003: SEAL. LEAKING. MAIN ROTOR GEARBOX SEAL REMOVED DUE TO OIL LEAK. - [SDR HEEA083653](https://openairdocs.org/sdr/HEEA083653), Jan 14, 2003: HOSE. KINKED. FUEL HOSE ASSY KINKED. - [SDR HEEA083482](https://openairdocs.org/sdr/HEEA083482), Jan 10, 2003: SEAL. LEAKING. MAST SEAL LEAKS. REPLACED SEAL PN 537855 DUE TO WORN AND PN 406040090103 NUT DUE TO GROOVED SEAL AREA. - [SDR HEEA080264](https://openairdocs.org/sdr/HEEA080264), Jun 27, 2002: PANEL. CRACKED. DOOR PANEL CRACKED. - [SDR HEEA080082](https://openairdocs.org/sdr/HEEA080082), Jun 11, 2002: BEARING. ROUGH. OIL COOLER BLOWER BEARING ROUGH. - [SDR HEEA080016](https://openairdocs.org/sdr/HEEA080016), Jun 10, 2002: FILTER. BYPASSING. CEFA LUBE SIDE BYPASS INDICATOR EXTENDED. REPLACED WITH SERVICEABLE FILTER. - [SDR HEEA080010](https://openairdocs.org/sdr/HEEA080010), Jun 10, 2002: BLEED VALVE. FAILED. TORQUE FLUCTUATION DURING CRUISE FLIGHT. REPLACED WITH SERVICEABLE BLEED VALVE. - [SDR HEEA079995](https://openairdocs.org/sdr/HEEA079995), Jun 10, 2002: STARTER GEN. WORN. BRUSHES WORN ON 300 HOUR INSPECTION. - [SDR HEEA079936](https://openairdocs.org/sdr/HEEA079936), Jun 3, 2002: MOUNT. WORN. ENGINE MOUNT HAS A BEARING WORN. REPLACED WITH SERVICEABLE PART. - [SDR HEEA079229](https://openairdocs.org/sdr/HEEA079229), May 24, 2002: EXHAUST STACK. CRACKED. ENGINE EXHAUST STACK CRACKED. - [SDR HEEA079227](https://openairdocs.org/sdr/HEEA079227), May 24, 2002: LINK. CORRODED. CORROSION ON MAIN ROTOR DRIVE LINK. - [SDR HEEA079044](https://openairdocs.org/sdr/HEEA079044), May 15, 2002: BEARING. ROUGH. ROUGH BEARINGS ON COOLER BLOWER ASSY. - [SDR HEEA079014](https://openairdocs.org/sdr/HEEA079014), May 15, 2002: PRESSURE SWITCH. CORRODED. FUEL BOOST PUMP PRESSURE SWITCH WIRES CORRODED AND BROKEN. - [SDR HEEA078832](https://openairdocs.org/sdr/HEEA078832), May 7, 2002: CASE. CORRODED. TAIL ROTOR GEARBOX HAS EXCESSIVE PITTING BETWEEN CHIP DETECTOR AND RIGHT FORWARD MOUNTING STUD. - [SDR HEEA078815](https://openairdocs.org/sdr/HEEA078815), May 7, 2002: HMU. FAILED. HMU HAS METERING VALVE CIRCUIT FAULT. REPLACED WITH SERVICEABLE HMU. All 103: https://openairdocs.org/aircraft/N493PH/reports.md ## STCs that may be installed (OpenAirDocs) (327, first 50) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Bell 407) - [STC SR00222DE](https://openairdocs.org/stc/SR00222DE): Installation of a vapor cycle air conditioning system. Air Comm Corporation - [STC SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies. Whelen Aerospace Technologies - [STC SR00275DE](https://openairdocs.org/stc/SR00275DE): Installation of emergency medical interior system. Air Methods LLC - [STC SR00368SE](https://openairdocs.org/stc/SR00368SE): Installation of a color video camera on either the left, right or both horizontal stabilizers. Turbolyft USA Corporation - [STC SR00643SE](https://openairdocs.org/stc/SR00643SE): Installation of Geneva Aviation Video System. Turbolyft USA Corporation - [STC SR12375NY](https://openairdocs.org/stc/SR12375NY): Demonstration of Aircraft Equipment Configurations Tolerance to Transmitting Portable Electronic Devices (TPED) in Part 27 Aircraft in accordance with the FAA-approved Rotorcraft Equipment Compatibility List (RECL). Kilroy Aviation, LLC - [STC SR04464NY](https://openairdocs.org/stc/SR04464NY): Installation of the iPad Mount. Avio Design Group Inc - [STC SR00521SE](https://openairdocs.org/stc/SR00521SE): Installation of Geneva Aviation Audio System. AEM USA Inc - [STC SR02301SE](https://openairdocs.org/stc/SR02301SE): Installation of Geneva Aviation 28 - 14 VDC Power Converter. AEM USA Inc - [STC SR02445SE](https://openairdocs.org/stc/SR02445SE): Installation of P178 Failsafe Audio Mixer. AEM USA Inc - [STC SR12385IB](https://openairdocs.org/stc/SR12385IB): Utility Basket Kit Installation. Alpine Aerotech LP - [STC SR11898NY](https://openairdocs.org/stc/SR11898NY): Installation of Outerlink Corporation Air IP system. Sterling Helicopter - [STC SR00279DE](https://openairdocs.org/stc/SR00279DE): Installation of Dual Aeronautical Accessories Nightscanner Searchlights. Air Methods LLC - [STC SR12092IB](https://openairdocs.org/stc/SR12092IB): Manufacturing and Installation of Cargo Hold Nets. ICARUS AERO INC - [STC SR12037DE](https://openairdocs.org/stc/SR12037DE): Installation of a Camera Mount. Century Helicopters Inc - [STC SR04845NY](https://openairdocs.org/stc/SR04845NY): Installation of a Helifab East Equipment Mount. Helifab East LLC - [STC SR04842NY](https://openairdocs.org/stc/SR04842NY): Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS). Sterling Helicopter - [STC SR11869SE](https://openairdocs.org/stc/SR11869SE): Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System. Mechanical Specialties LLC - [STC SR04047NY](https://openairdocs.org/stc/SR04047NY): Installation of a GPMS Foresight MX Condition Monitoring System (CMS). GPMS International Inc - [STC SR00532SE](https://openairdocs.org/stc/SR00532SE): Installation of Certified Technology quick release door pins. Certified Technology - [STC SR02827LA](https://openairdocs.org/stc/SR02827LA): Installation of Aerocraft's Bell 407 Slide Pull Kit (ARC-B407SP). Aerocraft Incorporated - [STC SR04548CH](https://openairdocs.org/stc/SR04548CH): Installation of Appareo Systems AIRS-400 Flight Monitoring System. Appareo Systems - [STC SR00425SE](https://openairdocs.org/stc/SR00425SE): Installation of a satellite phone. Turbolyft USA Corporation - [STC SR00182IB](https://openairdocs.org/stc/SR00182IB): Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s). Horizon Design Services Ltd - [STC SR00891LA](https://openairdocs.org/stc/SR00891LA): Installation of aft utility mount. Airfilm Camera Systems LLC - [STC SR00936LA](https://openairdocs.org/stc/SR00936LA): Installation of two-inch lift blocks. Airfilm Camera Systems LLC - [STC SR01688LA](https://openairdocs.org/stc/SR01688LA): Installation of Aero Pacific Belly Utility Mount. Airfilm Camera Systems LLC - [STC SR00335DE](https://openairdocs.org/stc/SR00335DE): Installation of snow pads. Dart Aerospace USA Inc - [STC SR00611DE](https://openairdocs.org/stc/SR00611DE): Installation of a ram air vent control cable kit in. Dart Aerospace USA Inc - [STC SR00682DE](https://openairdocs.org/stc/SR00682DE): Installation of Augmented Reality System. Dart Aerospace USA Inc - [STC SR03474CH](https://openairdocs.org/stc/SR03474CH): Installation of Heli-Preheat Kit, p/n TSHB407-3083-115 for 115 volt application. Hartzell Propeller Inc - [STC SR02120SE](https://openairdocs.org/stc/SR02120SE): Installation of Garmin GTN 6XX/7XX Navigation System. Garmin International Inc - [STC SR00011DE](https://openairdocs.org/stc/SR00011DE): Installation of a monitor mount assembly to mount a video monitor. (206B S/N 914 and subs). Dart Aerospace USA Inc - [STC SR00334DE](https://openairdocs.org/stc/SR00334DE): Installation of pneumatic door openers. Dart Aerospace USA Inc - [STC SR00338DE](https://openairdocs.org/stc/SR00338DE): Installation of anti-torque extension adjustment system. Dart Aerospace USA Inc - [STC SR00349DE](https://openairdocs.org/stc/SR00349DE): Installation of a searchlight. Dart Aerospace USA Inc - [STC SR00449DE](https://openairdocs.org/stc/SR00449DE): Installation of removable dual pedal system. Dart Aerospace USA Inc - [STC SR00486DE](https://openairdocs.org/stc/SR00486DE): Installation of mounting hardware in accordance with Paravion Technology Master Drawing List DL-407LS-100, Revision N/C, dated April 01, 2002, FAA approved dated January 27, 2003 or later FAA approved revision, and approval for the aircraft to be operated by a single pilot from the left crew seat. Dart Aerospace USA Inc - [STC SR00654DE](https://openairdocs.org/stc/SR00654DE): Installation of Rotary Latch Seat Belts. Dart Aerospace USA Inc - [STC SR00025DE](https://openairdocs.org/stc/SR00025DE): Installation of a shelf panel. Dart Aerospace USA Inc - [STC SR00344DE](https://openairdocs.org/stc/SR00344DE): Installation of external mirror. Dart Aerospace USA Inc - [STC SR00348DE](https://openairdocs.org/stc/SR00348DE): Installation of an infrared imaging system. Dart Aerospace USA Inc - [STC SR00574DE](https://openairdocs.org/stc/SR00574DE): Installation of 407FL-100 FADEC/Check Instrument Auxiliary Annunciation System. Dart Aerospace USA Inc - [STC SR00365BO](https://openairdocs.org/stc/SR00365BO): Installation of an Outerlink SATCOM Communications and Flight Data Monitoring System KIT B206-SAT-100 or KIT B407-SAT-100. Outerlink Corporation - [STC SR09424RC](https://openairdocs.org/stc/SR09424RC): Installation of an OuterLink Automatic Flight Following System and optional Electronic Flight Bag provisions in accordance with OuterLink Corporation Master Installation List NL462065004, Revision J, dated June 29, 2007, or later FAA-approved revision. Outerink Corporation - [STC SR03948NY](https://openairdocs.org/stc/SR03948NY): Installation of Frameless Crew Seat Cushion. HELIFAB East LLC - [STC SR04669NY](https://openairdocs.org/stc/SR04669NY): Installation of Human External Cargo Y-Rope and Long-Line Kit. Boost Human External Cargo Systems Inc - [STC SR04546AT](https://openairdocs.org/stc/SR04546AT): Installation of a Mission Console. Southeast Aerospace Incorporated - [STC SR09441RC](https://openairdocs.org/stc/SR09441RC): Installation of Articulating Medical Litter. Helifab Inc - [STC SR04458NY](https://openairdocs.org/stc/SR04458NY): Astronics (Max-Viz) 1200 or 1400 EVS Installation. Avio Design Group Inc All 327: https://openairdocs.org/aircraft/N493PH/stcs.md ## Related - Other Bell 407 aircraft: https://openairdocs.org/model/bell-407/aircraft.md - The Allison 250-C47 series engine: https://openairdocs.org/engine/allison-250-c47-series.md --- 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.