# Rolls-Royce 250-C20R/2

- Type: Engine model (FAA registry)
- Registry code: 54185
- Manufacturer (registry): ROLLS-ROYC
- Model: 250-C20R/2
- Engine type: Turbo-shaft
- Power: 450 hp
- Data sheet: [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Holder: Rolls-Royce Corporation
- Installed in: 24 registered aircraft
- Page: https://openairdocs.org/engine/rolls-royce-250-c20r-2

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2022-10-06](https://openairdocs.org/ad/2022-10-06): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20C (T63-A-720) and 9 more. Effective Jun 28, 2022
- [AD 2018-13-01](https://openairdocs.org/ad/2018-13-01): Turbine Governor · Rolls-Royce 250-C10 (T63-A-5), 250-C18, 250-C18A and 24 more. Effective Aug 16, 2018
- [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 2006-13-06](https://openairdocs.org/ad/2006-13-06): Gas producer rotor assembly tie bolts · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 16 more. Effective Jul 26, 2006
- [AD 2001-24-12](https://openairdocs.org/ad/2001-24-12): Helical Torquemeter Gearshaft Assembly · Rolls-Royce 250-B17, 250-B17C, 250-B17D and 13 more. Effective Dec 19, 2001
- [AD 98-24-28](https://openairdocs.org/ad/98-24-28): Main Fuel Control Bellows · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 36 more. Effective Jan 7, 1999
- [AD 96-19-01](https://openairdocs.org/ad/96-19-01): Superior Air Parts Manufacture Approval (PMA) Bearings · Rolls-Royce 250-B15G, 250-B17F, 250-B17F/1 and 17 more. Effective Sep 26, 1996
- [AD 88-17-01](https://openairdocs.org/ad/88-17-01): Fuel Controls · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 26 more. Effective Mar 1, 1989
- [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
- [AD 77-15-12](https://openairdocs.org/ad/77-15-12): Power Turbine Coupling Nut · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 23 more. Effective Sep 23, 1977

Historical (superseded or no longer in force):

- [AD 2017-18-14](https://openairdocs.org/ad/2017-18-14) (historical): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20F and 8 more. Effective Oct 13, 2017
- [AD 2015-02-22](https://openairdocs.org/ad/2015-02-22) (historical): Repetitive visual inspections · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 15 more. Effective Mar 9, 2015
- [AD 2012-14-06](https://openairdocs.org/ad/2012-14-06) (historical): Released turbine blades and shrouds · Rolls-Royce 250-C20, 250-C20B and 250-C20R/2. Effective Aug 14, 2012
- [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 2001-20-51](https://openairdocs.org/ad/2001-20-51) (historical): Helical Torquemeter Gearshaft Assembly · 250-B17, 250-B17C, 250-B17D and 12 more

## Registered aircraft (24)

- [N103CG](https://openairdocs.org/aircraft/N103CG): [City Of Burbank](https://openairdocs.org/faa-owner/CITY%20OF%20BURBANK), [Burbank, CA](https://openairdocs.org/faa-place/CA/Burbank), built 2006, S/N LN102
- [N155NR](https://openairdocs.org/aircraft/N155NR): [State Of Minnesota](https://openairdocs.org/faa-owner/STATE%20OF%20MINNESOTA), [Grand Rapids, MN](https://openairdocs.org/faa-place/MN/Grand%20Rapids), built 2015, S/N 0623E
- [N20FL](https://openairdocs.org/aircraft/N20FL): [Locker Fred](https://openairdocs.org/faa-owner/LOCKER%20FRED), [Muleshoe, TX](https://openairdocs.org/faa-place/TX/Muleshoe), built 2008, S/N 0592E
- [N33C](https://openairdocs.org/aircraft/N33C): [Sunshine 123 LLC](https://openairdocs.org/faa-owner/SUNSHINE%20123%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2018, S/N LN113
- [N457GM](https://openairdocs.org/aircraft/N457GM): [Century Aviation Inc Trustee](https://openairdocs.org/faa-owner/CENTURY%20AVIATION%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2010, S/N 0603E
- [N501HP](https://openairdocs.org/aircraft/N501HP): [Honolulu Police Department](https://openairdocs.org/faa-owner/HONOLULU%20POLICE%20DEPARTMENT), [Honolulu, HI](https://openairdocs.org/faa-place/HI/Honolulu), built 2009, S/N 0593E
- [N502HP](https://openairdocs.org/aircraft/N502HP): [Honolulu Police Department](https://openairdocs.org/faa-owner/HONOLULU%20POLICE%20DEPARTMENT), [Honolulu, HI](https://openairdocs.org/faa-place/HI/Honolulu), built 2007, S/N 0572E
- [N512PJ](https://openairdocs.org/aircraft/N512PJ): [Mid Pacific Aero Services LLC](https://openairdocs.org/faa-owner/MID%20PACIFIC%20AERO%20SERVICES%20LLC), [Honolulu, HI](https://openairdocs.org/faa-place/HI/Honolulu), built 1992, S/N LN020
- [N520MD](https://openairdocs.org/aircraft/N520MD): [Chatham County Mosquito Control](https://openairdocs.org/faa-owner/CHATHAM%20COUNTY%20MOSQUITO%20CONTROL), [Savannah, GA](https://openairdocs.org/faa-place/GA/Savannah), built 1992, S/N LN039
- [N520NM](https://openairdocs.org/aircraft/N520NM): [Willard Development Inc](https://openairdocs.org/faa-owner/WILLARD%20DEVELOPMENT%20INC), [Port Saint Lucie, FL](https://openairdocs.org/faa-place/FL/Port%20Saint%20Lucie), built 1992, S/N LN021
- [N520PD](https://openairdocs.org/aircraft/N520PD): [City Of Glendale Police Department](https://openairdocs.org/faa-owner/CITY%20OF%20GLENDALE%20POLICE%20DEPARTMENT), [Glendale, CA](https://openairdocs.org/faa-place/CA/Glendale), built 2014, S/N LN111
- [N520VC](https://openairdocs.org/aircraft/N520VC): [Volusia County Mosquito Control](https://openairdocs.org/faa-owner/VOLUSIA%20COUNTY%20MOSQUITO%20CONTROL), [New Smyrna Beach, FL](https://openairdocs.org/faa-place/FL/New%20Smyrna%20Beach), built 2015, S/N LN112
- [N523HB](https://openairdocs.org/aircraft/N523HB): [Crg2 LLC](https://openairdocs.org/faa-owner/CRG2%20LLC), [Lees Summit, MO](https://openairdocs.org/faa-place/MO/Lees%20Summit), built 2007, S/N LN105
- [N527FB](https://openairdocs.org/aircraft/N527FB): [Chatham County Mosquito Control](https://openairdocs.org/faa-owner/CHATHAM%20COUNTY%20MOSQUITO%20CONTROL), [Savannah, GA](https://openairdocs.org/faa-place/GA/Savannah), built 1992, S/N LN007
- [N600FH](https://openairdocs.org/aircraft/N600FH): [Fatv LLC](https://openairdocs.org/faa-owner/FATV%20LLC), [Henderson, NV](https://openairdocs.org/faa-place/NV/Henderson), S/N 0600E
- [N69NW](https://openairdocs.org/aircraft/N69NW): [Northwest Helicopters LLC](https://openairdocs.org/faa-owner/NORTHWEST%20HELICOPTERS%20LLC), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia), built 1990, S/N 0435E
- [N911HY](https://openairdocs.org/aircraft/N911HY): [Hawaii County Fire Department](https://openairdocs.org/faa-owner/HAWAII%20COUNTY%20FIRE%20DEPARTMENT), [Hilo, HI](https://openairdocs.org/faa-place/HI/Hilo), built 2010, S/N 0602E
- [N911MU](https://openairdocs.org/aircraft/N911MU): [St Louis County Police Dept](https://openairdocs.org/faa-owner/ST%20LOUIS%20COUNTY%20POLICE%20DEPT), [Clayton, MO](https://openairdocs.org/faa-place/MO/Clayton), built 2012, S/N 0614E
- [N911NY](https://openairdocs.org/aircraft/N911NY): [St Louis County (Mo) Police Dept](https://openairdocs.org/faa-owner/ST%20LOUIS%20COUNTY%20(MO)%20POLICE%20DEPT), [Chesterfield, MO](https://openairdocs.org/faa-place/MO/Chesterfield), built 2009, S/N 0599E
- [N912PG](https://openairdocs.org/aircraft/N912PG): [Prince Georges County Police Department](https://openairdocs.org/faa-owner/PRINCE%20GEORGES%20COUNTY%20POLICE%20DEPARTMENT), [College Park, MD](https://openairdocs.org/faa-place/MD/College%20Park), S/N LN104
- [N913PG](https://openairdocs.org/aircraft/N913PG): [Prince Georges County Police Dept](https://openairdocs.org/faa-owner/PRINCE%20GEORGES%20COUNTY%20POLICE%20DEPT), [College Park, MD](https://openairdocs.org/faa-place/MD/College%20Park), built 2008, S/N LN108
- [N977WF](https://openairdocs.org/aircraft/N977WF): [Forest View Helicopters LLC](https://openairdocs.org/faa-owner/FOREST%20VIEW%20HELICOPTERS%20LLC), [Marienville, PA](https://openairdocs.org/faa-place/PA/Marienville), built 2013, S/N LN110
- [N984DT](https://openairdocs.org/aircraft/N984DT): [Sprintbach Corp](https://openairdocs.org/faa-owner/SPRINTBACH%20CORP), [Caldwell, ID](https://openairdocs.org/faa-place/ID/Caldwell), S/N LN026
- [N992MC](https://openairdocs.org/aircraft/N992MC): [Charleston County Mosquito Control](https://openairdocs.org/faa-owner/CHARLESTON%20COUNTY%20MOSQUITO%20CONTROL), [North Charleston, SC](https://openairdocs.org/faa-place/SC/North%20Charleston), built 1978, S/N 1080363D

## 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 GAA16LA325](https://openairdocs.org/ntsb/GAA16LA325), Jun 17, 2016: MD Helicopter 369E (N155NR), Brainerd, MN, substantial damage. Probable cause: The failure of the helicopter’s windscreen for reasons that could not be determined based on the available information, which resulted in substantial damage to the main rotor blades and horizontal…

## 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 20230926015089I](https://openairdocs.org/incident/20230926015089I), Sep 26, 2023: Md Helicopters Inc 369E (N911MU), Chesterfield, MO, Minor damage. On 26 September 2023 the aircraft was inbound for ksus from the southwest approximately 4 miles out at 1500 MSL and 110 knots on a direct route. The aircraft…
- [Incident 20190413016879I](https://openairdocs.org/incident/20190413016879I), Apr 13, 2019: Md Helicopters Inc 500N (N523HB), Santa Ana, CA, No damage. Performing right hand orbits over a location PIC [privacy data omitted] came out of the orbit and felt the right anti-torque pedal was stuck. It was diagnosed…
- [Accident 20160617022419A](https://openairdocs.org/incident/20160617022419A), Jun 17, 2016: Md MD-369E (N155NR), Brainerd, MN, Substantial damage. Pilot windscreen shattered while in cruise about 2O miles south of brd at 2200' MSL and an airspeed of approximately 110 mph. Pilot was able to land aircraft…

## Service difficulty reports (66, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2019FA0000124](https://openairdocs.org/sdr/2019FA0000124), Apr 13, 2019: CONTROL CABLE. BINDING. A/C EXPERIENCED STUCK RIGHT PEDAL IN FLIGHT RESULTING IN EMERGENCY LANDING. UPON INSPECTION OF ANTI-TORQUE SYSTEM, FOUND FORWARD AND AFT THRUSTER CONTROL CABLE 
- [SDR CA160107008](https://openairdocs.org/sdr/CA160107008), Jan 4, 2016: TURBINE. FAILED. (CAN) THE TURBINE HAD A CATASTROPHIC FAILURE.
- [SDR CA141017005](https://openairdocs.org/sdr/CA141017005), Oct 8, 2014: CARTRIDGE. LEAKING. (CAN) BOOST PUMP FUEL CARTRIDGE LEAKING FUEL AND REQUIRES O/H, REPLACED WITH TSO 0.0.
- [SDR CA141016002](https://openairdocs.org/sdr/CA141016002), Oct 7, 2014: BLADE. DEBONDED. (CAN) TAIL ROTOR BLADES, L/E STRIPS FOUND DEBONDED AT BLADE TIPS. EDGE OF L/E STRIP SEPARATED FROM AIRFOIL. BOTH BLADES REMOVED FROM SERVICE AND REPLACED BY NEW
- [SDR ZD4R20130530610](https://openairdocs.org/sdr/ZD4R20130530610), May 8, 2013: RETAINING RING. DISLODGED. A CHIP LIGHT ILLUMINATED, CLEANED CHIP PLUGS AND RETURNED ENGINE BACK TO SERVICE. APPROX 11 HOURS LATER, CHIP LIGHT ILLUMINATED AND METAL WAS MORE SIGNIFICANT T
- [SDR CA121019012](https://openairdocs.org/sdr/CA121019012), Oct 17, 2012: TURBINE. SEIZED. (CAN) WHILE DECENDING FOR AN APPROACH INTO CAMP, AT APPROXIMATELY 200 FEET AGL, PILOT HEARD A LOUD BANG FOLLOWED BY A YAW, AND A LOSS OF ENGINE POWER. PILOT ENT
- [SDR 2012FA0000117](https://openairdocs.org/sdr/2012FA0000117), Dec 27, 2011: TORQUE TUBE. MISMANUFACTURED. DURING A 600 HR A/F INSPECTION, NOTICED 8 RIVETS SHOWING EVIDENCE OF LOOSENESS. THE AFFECTED RIVETS ARE LOCATED ON THE RT SIDE OF THE TORQUE TUBE AND GO AROUND.
- [SDR 2011FA0000385](https://openairdocs.org/sdr/2011FA0000385), Jun 7, 2011: COVER. CRACKED. WITHIN 1 WEEK OF RECEIVING THIS UNIT BACK FROM O/H, IT STARTED SEEPING OIL. THOUGHT IT WAS LEAKING FROM THE SCAV PUMP, REMOVED THE PUMP AND INSTALLED NEW PACKIN
- [SDR CA091109007](https://openairdocs.org/sdr/CA091109007), Nov 6, 2009: INDICATOR. MISREPAIRED. (CAN) RECEIVED THIS INDICATOR FROM O/H AND IT WAS FOUND TO BE INDICATING 300 DEGREES CELSIUIS TO HIGH UPON INSTALLATION AND TEST. WE ARE ASSUMING THIS PROBLEM W
- [SDR CA090304008](https://openairdocs.org/sdr/CA090304008), Feb 27, 2009: BEARING. DAMAGED. (CAN) RECEIVED MAIN ROTOR HUB FOR REPLACEMENT OF TIME EXPIRED COMPONENTS. WHEN DISASSEMBLED FOUND THAT BOTH OTBD EXCLUDERS IN GRIP ASSEMBLIES WERE NO LONGER RET
- [SDR CA081017007](https://openairdocs.org/sdr/CA081017007), Oct 17, 2008: GOVERNOR. MALFUNCTIONED. (CAN) UPON REMOVAL OF THE GOVERNOR IT WAS NOTED THAT THE DRIVE GEAR HAD COME SEPARATED. ALL PARTS WERE FOUND IN THE DRIVE GEAR FOR THE GOVERNOR. THERE WAS DIFFI
- [SDR CA080625005](https://openairdocs.org/sdr/CA080625005), Jun 12, 2008: BLADE. DELAMINATED. (CAN) DELAMINATION AT ROOT OF BLADE ON UPPER SURFACE OF THE GIP PLATE FINGER. VISUAL SEPARATION NOTED ON DAILY INSP.
- [SDR CA080603005](https://openairdocs.org/sdr/CA080603005), Jun 2, 2008: PUMP. MALFUNCTIONED. (CAN) REINFORCED PAPER WIPERS LEFT IN THE FUEL TANK AFTER WORK CARRIED OUT. DURING A 300 HOUR INSP, THERE WAS SIGNIFICANT FUZZ LIKE DEBRIS FOUND IN THE ENGINE D
- [SDR CA080103007](https://openairdocs.org/sdr/CA080103007), Jan 3, 2008: BOLT. BROKEN. (CAN) ON INSPECTION OF THE AIRCRAFT IT WAS NOTED THAT THE (1) OF THE (3) BOLTS WAS BROKEN AND THE OTHERS SHOWED SIGNS OF CORROSION ALL (3) BOLTS WHERE REPLACED 
- [SDR CA071029004](https://openairdocs.org/sdr/CA071029004), Aug 9, 2007: HOUSING. CRACKED. (CAN) OIL FOUND ON TRANSMISSION DECK AFTER BRIEF DAILY INSPECTION, OIL LEAK FOUND FROM THE BOTTOM OF THE TRANSMISSION. UPON FURTHER INVESTIGATION TRANSMISSION R
- [SDR CA070726003](https://openairdocs.org/sdr/CA070726003), Jul 9, 2007: SLEEVE. CRACKED. (CAN) PILOT STARTING A/C, THROTTLE OPENED, NO ENGINE LIGHT OFF OCCURED. OPENED ENGINE COWL TO INVESTIGATE, NOTICED FUEL DRIPPING FROM AROUND START DE-RICHMENT A
- [SDR CA070327009](https://openairdocs.org/sdr/CA070327009), Mar 13, 2007: GEARBOX. LEAKING. (CAN) OIL LEAK. SHIPPED TO AUTHORIZED SERVICE CENTER FOR REPAIR AND RE-INSTALLATION. (TC NR 20070327009)
- [SDR CA061120001](https://openairdocs.org/sdr/CA061120001), Nov 4, 2006: SWITCH. LEAKING. (CAN) REMOVED LT FUEL FLOW SWITCH DUE TO LEAKING. INSTALLED FUEL FLOW SWITCH PN 205-061-635-005 SN 9607 (TC NR 20061120001).
- [SDR CA061117001](https://openairdocs.org/sdr/CA061117001), Nov 3, 2006: TRANSDUCER. READS LOW. (CAN) UNDER READING FUEL PRESSURE. REMOVED AND INSTALLED REPLACEMENT PRESSURE TRANSDUCER PN BSE 206-30G SN2617-1-251 (TC NR 20061117001)
- [SDR CA051012007](https://openairdocs.org/sdr/CA051012007), Sep 27, 2005: HINGE. BROKEN. ON APPROACH WITH A SLING LOAD THE BATTERY DOOR OPEN AT A SPEED OF 60 MPH AND THE DOOR HINGE BROKE. THE DOOR STAYED ATTACH TO THE AIRCRAFT BY THE SPRING P/N 206-
- [SDR CA050617004](https://openairdocs.org/sdr/CA050617004), May 27, 2005: SEAL. LEAKING. (CAN) REPLACED SEAL DUE TO LEAKING OIL. (FREEWHEEL)
- [SDR CA050511004](https://openairdocs.org/sdr/CA050511004), Apr 19, 2005: FAN. DAMAGED. THE COOLING FAN IN THE STARTER GEN DEVELOPED A CRACK IN THE FAN BLADE PART (4 BLADES ARE STAMPED FROM ONE ALUMINUM PIECE, AND SWAGED ON A STEEL HUB) AT THE NOTC
- [SDR CA041222006](https://openairdocs.org/sdr/CA041222006), Dec 9, 2004: TURBINE. FAILED. (CAN) CHIP LIGHT AND ENGINE VIBRATION. PRECAUTIONARY LANDING. ON SUBSEQUENT INSPECTION, TURBINE FOUND TO HAVE FAILED. EXHAUST STACKS AND COMBUSTION LINER FOUND 
- [SDR CA040623009](https://openairdocs.org/sdr/CA040623009), Jun 23, 2004: BLADE. PERFORATED. (CAN) WHILE CARRYING OUT REQUIREMENTS OF AD CF-2004-05(BHTC ASB 206L-04-127 REV A) A PIN HOLE IN THE EPOXY FILLER, APPROXIMATELY .012 IN. DIA, INTRUDING INTERNA
- [SDR CA040727008](https://openairdocs.org/sdr/CA040727008), Jun 3, 2004: WASHER. MISSING. (CAN) AFTER FINDING MISSING CARRIAGE ROLLER WASHERS ON ANOTHER LONG RANGER, INSPECTED AND FOUND IT TO BE THE SAME, NO WASHERS.
- [SDR CA040603007](https://openairdocs.org/sdr/CA040603007), Jun 2, 2004: TURBINE. LOCKED. (CAN) TURBINE HAD AN N2 LOCK UP. SUSPECT UNKNOWN AT THIS TIME. TURBINE SENT TO OVERHAUL SHOP FOR ASSESSMENT.
- [SDR CA040428004](https://openairdocs.org/sdr/CA040428004), Apr 19, 2004: ELT. FAILED. (CAN) UPON ANNUAL RE-INSPECTION FOR RE-CERTIFICATION PURPOSES, AVIOINICS SHOP REPORTED ELT S/N 353494 FAILS TEST PROBABLY DUE TO A BAD CRYSTAL. UPON BEING ADVIS
- [SDR CA040806007](https://openairdocs.org/sdr/CA040806007), Apr 17, 2004: FITTING. MISINSTALLED. (CAN) AFTER A VISUAL INSPECTION, ENGINE GB MOUNT FITTING 206-063-110-003 (RT) AND FITTING 206-063-110-001 (BOTTOM) WERE FOUND INTERMIXED. BOTTOM FITTING IS 0.4 
- [SDR CA040427014](https://openairdocs.org/sdr/CA040427014), Apr 14, 2004: COUPLING. WORN. (CAN) UPON INSPECTION, SPLINE/COUPLING P/N 9A1424 WAS FOUND WORN. REMOVED OIL PUMP AND TACH GENERATOR AND MATING COUPLING P/N 9A1424 FOR INSPECTION AND REPAIR. 
- [SDR 2004FA0000269](https://openairdocs.org/sdr/2004FA0000269), Feb 14, 2004: GAUGE. INACCURATE. PILOT REPORTED OPERATIONAL EXCEEDANCE DURING FLIGHT RETURNED AC TO HELIPORT. UPON FURTHER INSPECTION AND EVALUATION IT WAS DETERMINED THAT THE DIAMOND J. TORQUE
- [SDR CA031126009](https://openairdocs.org/sdr/CA031126009), Nov 24, 2003: PIN. BROKEN. (CAN) BLADE PIN FOUND TO BE BROKEN WHERE THREAD MEETS THE PIN.
- [SDR CA031017004](https://openairdocs.org/sdr/CA031017004), Oct 4, 2003: FUEL CONTROL. FAILED. (CAN) AFTER LANDING, THROTTLE WAS SNAP ROLLED TO IDLE. N2 WAS NR IMMEDIATELY INCREASED TO 105 PERCENT AND STABILIZED. ENGINE WAS SHUT DOWN BY ROLLING THROTTLE T
- [SDR CA030903005](https://openairdocs.org/sdr/CA030903005), Aug 18, 2003: BEARING. FAILED. (CAN) AS DESCRIBED ABOVE ROLLER BEARING PN 369D25146 INNER RACE FAILURE. IN THIS CASE THIS FAILURE WAS DETECTED BY THE AIRCRAFTS WARNING SYSTEM. THE AIRCRAFT WA
- [SDR CA030612005](https://openairdocs.org/sdr/CA030612005), Jun 12, 2003: CASE. CRACKED. (CAN) ROUTINE INSPECTON AND CHANGING FUEL NOZZLE IT WAS SUSPECTED THAT THERE WAS A CRACK ALONG THE WELD WHERE THE FUEL NOZZLE ADAPTER IS ATTATCHED TO THE END OF
- [SDR CA030612006](https://openairdocs.org/sdr/CA030612006), Jun 12, 2003: CASE. CRACKED. (CAN) AFTER INPSECTION WITH THE ENGINE RUNNING A LEAK CHECK WAS CARRIED OUT BY PLACING A HAND IN AREA OF THE FUEL NOZZLE AND AIR WAS FELT. THE ENGINE WAS SHUT D
- [SDR CA031031006](https://openairdocs.org/sdr/CA031031006), Jun 12, 2003: GOVERNOR. FAILED. (CAN) NR DROOPING TO 97 WITHOUT RECOVERY UNDER POWER AND OVER SPEEDING TO 107 WHEN POWER REDUCED.
- [SDR CA030312016](https://openairdocs.org/sdr/CA030312016), Feb 12, 2003: BEARING. MAKING METAL. (CAN) DURING A FLIGHT THE ENGINE CHIP LIGHT ILLUMINATED, THE PILOT LANDED AND THE LOWER CHIP PLUG WAS INSPECTED AND HAD SHINY PARTICLES ON IT. THE AIRCRAFT WAS 
- [SDR CA030210004](https://openairdocs.org/sdr/CA030210004), Jan 30, 2003: SERVO. LEAKING. (CAN) HYDRAULIC SERVO LEAKING. REMOVED FOR REPAIR.
- [SDR CA030127001](https://openairdocs.org/sdr/CA030127001), Jan 13, 2003: TURBINE. SEIZED. (CAN) DURING FIRST START OF THE ENGINE, FOLLOWING A TURBINE CHANGE, MAIN ROTOR BLADES INITIALLY STARTED TURNING BUT THEN STOPPED BEFORE ENGINE ACCELERATED TO ID
- [SDR CA020412012](https://openairdocs.org/sdr/CA020412012), Apr 6, 2002: BUSHING. WORN. (CAN) TRANSMISSION STOP MOUNT HAS WORN BUSHINGS. REPLACED.
- [SDR CA011211013](https://openairdocs.org/sdr/CA011211013), Dec 4, 2001: STRUT. CRACKED. (CAN) CRACK FOUND ON UPPER PART OF STRUT AROUND THE BRACE ATTACHMENT HOLE.
- [SDR CA010725022](https://openairdocs.org/sdr/CA010725022), Jul 3, 2001: ARM. DAMAGED. (CAN) FOUND NUT OF ACTUATOR ARM LOOSE IN ARM. UNIT REPLACED AND AIRCRAFT RETURNED TO SERVICE AFTER ADJUSTMENTS.
- [SDR CA010725023](https://openairdocs.org/sdr/CA010725023), Jul 3, 2001: FITTING. CRACKED. (CAN) THE FITTING HAD TO BE REPLACED DUE TO CRACK. IT APPEARS TO HAVE CRACKED DUE TO INCORRECT INSTALLATION. THERE WAS A 100 INCH GAP BETWEEN THE LONGERON AND T
- [SDR CA010725031](https://openairdocs.org/sdr/CA010725031), Jul 3, 2001: HOSE. LEAKING. (CAN) DURING REFUELING OPERATION, FUEL WAS OBSERVED LEAKING FROM TANK VENT HOSE ASSEMBLY WHEN TANK WAS FILLED TO CAPACITY. HOSE APPEARS TO HAVE DETERIORATED WIT
- [SDR CA010704025](https://openairdocs.org/sdr/CA010704025), Jun 28, 2001: SHAFT. CORRODED. (CAN) DURING AN UNSCHEDULED MAINTENANCE REMOVAL OF THE UNIT IT WAS NOTED THAT THERE WAS EXCESSIVE PITTING CORROSION ON THE INNER SHAFT IN THE AREA WHERE THE FEL
- [SDR CA000511016](https://openairdocs.org/sdr/CA000511016), May 4, 2000: BEARING. MAKING METAL. (CAN) NR 1 COMPRESSOR ROLLER BEARING MAKING METAL.
- [SDR CA000511026](https://openairdocs.org/sdr/CA000511026), Feb 17, 2000: HOOK. WRONG PART. (CAN) ROTORCRAFT WAS CARRYING A SKIDOO ON THE CARGO HOOK WHEN THE PILOT FELT IT RELEASE. RETURNED TO BASE WHERE THE HOOK AND MECHANICAL AND ELECTRICAL RELEASES 
- [SDR CA000209070](https://openairdocs.org/sdr/CA000209070), Jan 30, 2000: MAST. BLISTERED. (CAN) INTERNAL EXAMINATION OF THE MAST REVEALED CORROSION APPROX 1/2 TO 2/3 UP FROM THE BOTTOM SIDE OF THE MAST BORE. CADMIUM PLATING APPEARED TO BE SEPARATING 
- [SDR CA990817025](https://openairdocs.org/sdr/CA990817025), Aug 6, 1999: IGNITER. FAILED. (CAN) ROTORCRAFT WOULD NOT START. PROBLEM WAS WITH FAULTY IGNITER PLUG.
- [SDR CA990531004](https://openairdocs.org/sdr/CA990531004), May 13, 1999: COMPRESSOR. FAILED. (CAN) IN CRUISE AT 5,300 FEET, WITH AUTO-LIGHT AND ANTI-ICE SELECTED ON, A LOUD EXPLOSION WAS HEARD FOLLOWED BY AN IMMEDIATE YAW TO THE LEFT. THE ENGINE HORN AL

All 66: https://openairdocs.org/engine/rolls-royce-250-c20r-2/reports.md

## STCs that may be installed (OpenAirDocs) (5)

Approved for this engine 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 SE5511NM](https://openairdocs.org/stc/SE5511NM): Installation of compressor discharge pressue (PC) valve. Bell Helicopter Textron Inc
- [STC SE00014EN](https://openairdocs.org/stc/SE00014EN): Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models. Pratt & Whitney Engine Services Inc
- [STC SE00027EN](https://openairdocs.org/stc/SE00027EN): Installation of Pratt & Whitney Engine Services Inc. Intellistart plus electronic control unit (ECU), P/N DPU-K-010 on the specified 250 engine models. Pratt & Whitney Engine Services Inc
- [STC ST00037AT](https://openairdocs.org/stc/ST00037AT): Unison igniter plugs, P/N 9044400-1. Unison Industries
- [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. Unison Industries

## PMA parts (OpenAirDocs) (478, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [2691794HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192280472920240802140700.0001): Bearing, Ball (Drive). HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2691794 · Apr 4, 2024
- [82010546-001HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198764457620230717173048.0001): Bearing, Ball (Drive). HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 82010546-001 · May 22, 2023
- [82010580-001HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163424415620230717173050.0001): Grease, Aircraft Bearing. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 82010580-001 · May 22, 2023
- [2549170](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143676770520230907182154.0001): Power Turbine Governor. Honeywell International Inc. · PMA PQ1222NM · Replaces 23076061 · Mar 10, 2023
- [2549170-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129926831420230907182152.0001): Governor Assembly, Power Turbine. Honeywell International Inc. · PMA PQ1222NM · Replaces 23086749 · Mar 10, 2023
- [2549065](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185104431420230907125029.0001): Hydro-mechanical Unit. Honeywell International Inc. · PMA PQ1222NM · Replaces 23051979 · Nov 29, 2022
- [E250-10416](https://drs.faa.gov/browse/excelExternalWindow/B2AA8EBA3598CB71862585910054A0AE.0001): Shaft, Power Turbine, Outer. Extex Engineered Products Inc · PMA PQ2203NM · Replaces M250-10416 · Jan 6, 2020
- [6843361HT](https://drs.faa.gov/browse/excelExternalWindow/FEFFC83511F3456B862585500062B6AE.0001): Cage, Ball Bearing-1.024 ID X .312 Wide (and Oversizes). HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6843361 · Apr 30, 2019
- [2537525HT](https://drs.faa.gov/browse/excelExternalWindow/FE2CFD93295E4A9586258550006312B3.0001): Shaft, Shouldered, Eccentric. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537525 · Apr 30, 2019
- [2539533HT](https://drs.faa.gov/browse/excelExternalWindow/FDF710A0D9BAAADD8625855000632B9C.0001): Bearing, Sintered. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539533 · Apr 30, 2019
- [951190HT](https://drs.faa.gov/browse/excelExternalWindow/FC8B8869AAFBA24A8625855000632D54.0001): Pin, Sraight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951190 · Apr 30, 2019
- [2521745HT](https://drs.faa.gov/browse/excelExternalWindow/FB5437CD05C715928625855000631007.0001): Pin, Straight, Headed. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2521745 · Apr 30, 2019
- [2523123HT](https://drs.faa.gov/browse/excelExternalWindow/F7ED1DCCD5F726178625855000635A58.0001): Diaphragm. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523123 · Apr 30, 2019
- [47070HT](https://drs.faa.gov/browse/excelExternalWindow/F7B8FBB13C3754EE8625855000633D7A.0001): Body, Fuel Nozzle. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 47070 · Apr 30, 2019
- [6875104HT](https://drs.faa.gov/browse/excelExternalWindow/F7976EEE0864C0FC8625855000629713.0001): Washer, Flat-.190I.D. X.312X.031 THK, AMS 5516. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6875104 · Apr 30, 2019
- [H250-10113](https://drs.faa.gov/browse/excelExternalWindow/F79503304C39D6A78625855000638D3A.0001): Race, Bearing Inner, 20mm I.D.. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces M250-10113 · Apr 30, 2019
- [6856986HT](https://drs.faa.gov/browse/excelExternalWindow/F71D7C1A9289065F862585500062C13F.0001): Poppet & Seat Assy. Anti-Icing Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6856986 · Apr 30, 2019
- [23073355](https://drs.faa.gov/browse/excelExternalWindow/F65CBF7AF67669F38625855000633C45.0001): Valve, Servo-Compressor Bleed. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 23073355 · Apr 30, 2019
- [197498HT](https://drs.faa.gov/browse/excelExternalWindow/F58363F6C29A0E2C8625855000636674.0001): Nut, Self-Locking. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 197498 · Apr 30, 2019
- [23004513HT](https://drs.faa.gov/browse/excelExternalWindow/F536F4331CB36E2186258550006314B5.0001): Seal, Plain-Encased. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 23004513 · Apr 30, 2019
- [2539728HT](https://drs.faa.gov/browse/excelExternalWindow/F443067B0718FDB0862585500062E5F1.0001): Seat, Bellows. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539728 · Apr 30, 2019
- [6853463HT](https://drs.faa.gov/browse/excelExternalWindow/F3D6B2D89D6786D486258550006375D6.0001): Tube Assy., Scav. -Oil- Gasifier Turbine Support to Accessory Hsg. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6853463 · Apr 30, 2019
- [6896098HT](https://drs.faa.gov/browse/excelExternalWindow/F32E4B1478DF1131862585500062F93E.0001): Seal, Labyrinth-Gasifier Turbine Forward. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6896098 · Apr 30, 2019
- [6808392HT](https://drs.faa.gov/browse/excelExternalWindow/F327858FDC6FA3FD862585500062EFB3.0001): Nut-Spanner, 27/32-32Thd. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6808392 · Apr 30, 2019
- [6844169HT](https://drs.faa.gov/browse/excelExternalWindow/EEA08B5CE9D50D858625855000632609.0001): Tube Assy., Fuel Control to Fire Shield. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6844169 · Apr 30, 2019
- [6877277HT](https://drs.faa.gov/browse/excelExternalWindow/ED89264E3E345B9F86258550006327C1.0001): Tube Assy., Press. Fuel Control to Accumulator. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6877277 · Apr 30, 2019
- [2539170HT](https://drs.faa.gov/browse/excelExternalWindow/ED10E7C1F7943A5C862585500063453A.0001): Lever Assembly, CAM Follower Lever. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539170 · Apr 30, 2019
- [6890040HT](https://drs.faa.gov/browse/excelExternalWindow/EAB4262CF5DCF6B1862585500062F849.0001): Shield Assy., Turbine Nozzle 1st Stage. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6890040 · Apr 30, 2019
- [2539641HT](https://drs.faa.gov/browse/excelExternalWindow/EAAC9B4FF82FDB5186258550006333E2.0001): Spring, Helical, Extension. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539641 · Apr 30, 2019
- [6856984HT](https://drs.faa.gov/browse/excelExternalWindow/E8ADCF843602D53C862585500062BF66.0001): Body, Valve-Anti-Icing. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6856984 · Apr 30, 2019
- [6876030HT](https://drs.faa.gov/browse/excelExternalWindow/E79234C7BBF9CF68862585500062FEEB.0001): Stud, Shouldered, Stepped-.250-28x.500-16x1.374LG.. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6876030 · Apr 30, 2019
- [6876925HT](https://drs.faa.gov/browse/excelExternalWindow/E50B21DEC0893A14862585500062E284.0001): Tube Assy., Oil Filter Inlet. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6876925 · Apr 30, 2019
- [23032283HT](https://drs.faa.gov/browse/excelExternalWindow/E406BEB5470E1FE7862585500062DD76.0001): Pinion Bearing Cage Power Turbine. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 23032283 · Apr 30, 2019
- [6844043HT](https://drs.faa.gov/browse/excelExternalWindow/E3DD22AFB6589BF4862585500062A71B.0001): Tube, Oil Transfer. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6844043 · Apr 30, 2019
- [6899050HT](https://drs.faa.gov/browse/excelExternalWindow/E20ACA4FAC9A2EAB862585500062863D.0001): Valve-Poppet, CPRSR Bleed. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6899050 · Apr 30, 2019
- [336132HT](https://drs.faa.gov/browse/excelExternalWindow/E07190E2A02F10498625855000636717.0001): Tapered Pin, Split. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 336132 · Apr 30, 2019
- [6853446HT](https://drs.faa.gov/browse/excelExternalWindow/DF8E0D4DBF0B1EA9862585500062B018.0001): Shaft, Gear-Oil Pump. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6853446 · Apr 30, 2019
- [6899051HT](https://drs.faa.gov/browse/excelExternalWindow/DF724C028D881CAF8625855000628826.0001): Valve, Servo-Compressor Bleed. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6899051 · Apr 30, 2019
- [2520570HT](https://drs.faa.gov/browse/excelExternalWindow/DC7000B2192F14888625855000633F53.0001): Rod. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520570 · Apr 30, 2019
- [6810448HT](https://drs.faa.gov/browse/excelExternalWindow/DAF595A1CC57D376862585500062E13F.0001): Bushing-Sleeve .625 x .815 x .437. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6810448 · Apr 30, 2019
- [6876741HT](https://drs.faa.gov/browse/excelExternalWindow/DAD145C0601221568625855000636F8D.0001): Stud, Welding- Percussion .190-32 UNJF-3A. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6876741 · Apr 30, 2019
- [951388HT](https://drs.faa.gov/browse/excelExternalWindow/DA66A5873365EBC9862585500063070A.0001): Packing, Preformed O Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951388 · Apr 30, 2019
- [2539034HT](https://drs.faa.gov/browse/excelExternalWindow/D854B45671A2734E862585500063447F.0001): Weight. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539034 · Apr 30, 2019
- [6848471HT](https://drs.faa.gov/browse/excelExternalWindow/D56C5A805DBB39DB8625855000634EEA.0001): Tube, Assy., Pressure, Oil Check Valve To Fire Shield. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6848471 · Apr 30, 2019
- [6890909HT](https://drs.faa.gov/browse/excelExternalWindow/D3CFDDD1AC5180DE862585500062896E.0001): Jet, Compressor Bleed Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6890909 · Apr 30, 2019
- [6852176HT](https://drs.faa.gov/browse/excelExternalWindow/D2E81DF924CBABBF862585500062BB43.0001): Guide Assy., Poppet-Anti-Icing Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6852176 · Apr 30, 2019
- [2537956HT](https://drs.faa.gov/browse/excelExternalWindow/D20327EF0618F354862585500063323E.0001): Pin, Shoulder, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537956 · Apr 30, 2019
- [951390HT](https://drs.faa.gov/browse/excelExternalWindow/D0B5B6870CEFAA55862585500063078F.0001): Packing, Preformed O Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951390 · Apr 30, 2019
- [6896437HT](https://drs.faa.gov/browse/excelExternalWindow/CF4D9A2F43D117368625855000630188.0001): Strainer Assy.-Compressor-Bleed Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6896437 · Apr 30, 2019
- [6877736HT](https://drs.faa.gov/browse/excelExternalWindow/CEBECB98B3BC3712862585500062ABD4.0001): Seal, Labyrinth Stator-Gasifier Turbine Brg.. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6877736 · Apr 30, 2019

All of them: https://openairdocs.org/engine/rolls-royce-250-c20r-2/pma.md

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