# Rolls-Royce 250-C40B

- Type: Engine model (FAA registry)
- Registry code: 54525
- Manufacturer (registry): ROLLS-ROYC
- Model: 250-C40B
- Engine type: Turbo-shaft
- Power: 715 hp
- Data sheet: [TCDS E1GL](https://openairdocs.org/tcds/E1GL) (OpenAirDocs)
- Holder: Rolls-Royce Corporation
- Installed in: 19 registered aircraft
- Page: https://openairdocs.org/engine/rolls-royce-250-c40b

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 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 97-25-09](https://openairdocs.org/ad/97-25-09): Helical Power Takeoff Gearshaft Assembly · Rolls-Royce 250-C40B. Effective Dec 23, 1997
- [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Historical (superseded or no longer in force):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 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

## Registered aircraft (19)

- [N123HP](https://openairdocs.org/aircraft/N123HP): [Southwest Heliservices LLC](https://openairdocs.org/faa-owner/SOUTHWEST%20HELISERVICES%20LLC), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 1980, S/N 45394
- [N16KK](https://openairdocs.org/aircraft/N16KK): [S & S Aviation Services Inc](https://openairdocs.org/faa-owner/S%20%26%20S%20AVIATION%20SERVICES%20INC), [Pacoima, CA](https://openairdocs.org/faa-place/CA/Pacoima), S/N 49100
- [N255MK](https://openairdocs.org/aircraft/N255MK): [Premier Aircraft Services LLC](https://openairdocs.org/faa-owner/PREMIER%20AIRCRAFT%20SERVICES%20LLC), [Bakersfield, CA](https://openairdocs.org/faa-place/CA/Bakersfield), built 1996, S/N 49007
- [N34S](https://openairdocs.org/aircraft/N34S): [Flying Tigers LLC](https://openairdocs.org/faa-owner/FLYING%20TIGERS%20LLC), [Jefferson City, MO](https://openairdocs.org/faa-place/MO/Jefferson%20City), built 2002, S/N 49092
- [N427SP](https://openairdocs.org/aircraft/N427SP): [State Of New York](https://openairdocs.org/faa-owner/STATE%20OF%20NEW%20YORK), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), built 2001, S/N 49083
- [N430CF](https://openairdocs.org/aircraft/N430CF): [San Juan Aviation LLC](https://openairdocs.org/faa-owner/SAN%20JUAN%20AVIATION%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2006, S/N 49118
- [N430DW](https://openairdocs.org/aircraft/N430DW): [Gear Aviation LLC](https://openairdocs.org/faa-owner/GEAR%20AVIATION%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 2001, S/N 49079
- [N430W](https://openairdocs.org/aircraft/N430W): [430w LLC](https://openairdocs.org/faa-owner/430W%20LLC), [Crestline, CA](https://openairdocs.org/faa-place/CA/Crestline), built 2001, S/N 49086
- [N430WH](https://openairdocs.org/aircraft/N430WH): [Aviation Trust Company LLC Trustee](https://openairdocs.org/faa-owner/AVIATION%20TRUST%20COMPANY%20LLC%20TRUSTEE), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 2006, S/N 49114
- [N431LL](https://openairdocs.org/aircraft/N431LL): [Hm Aviation Holdings LLC](https://openairdocs.org/faa-owner/HM%20AVIATION%20HOLDINGS%20LLC), [Fort Pierce, FL](https://openairdocs.org/faa-place/FL/Fort%20Pierce), S/N 49128
- [N431SL](https://openairdocs.org/aircraft/N431SL): [Mcmahon Helicopter Services Inc](https://openairdocs.org/faa-owner/MCMAHON%20HELICOPTER%20SERVICES%20INC), [Canton, MI](https://openairdocs.org/faa-place/MI/Canton), built 1997, S/N 49023
- [N432HF](https://openairdocs.org/aircraft/N432HF): [Heliflite Shares LLC](https://openairdocs.org/faa-owner/HELIFLITE%20SHARES%20LLC), [Kearny, NJ](https://openairdocs.org/faa-place/NJ/Kearny), built 2000, S/N 49064
- [N432NY](https://openairdocs.org/aircraft/N432NY): [State Of New York](https://openairdocs.org/faa-owner/STATE%20OF%20NEW%20YORK), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), built 2001, S/N 49087
- [N556UH](https://openairdocs.org/aircraft/N556UH): [Mcmahon Helicopter Services Inc](https://openairdocs.org/faa-owner/MCMAHON%20HELICOPTER%20SERVICES%20INC), [Canton, MI](https://openairdocs.org/faa-place/MI/Canton), built 2006, S/N 49117
- [N557ST](https://openairdocs.org/aircraft/N557ST): [Shelby Patrick B Trustee](https://openairdocs.org/faa-owner/SHELBY%20PATRICK%20B%20TRUSTEE), [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas), built 2002, S/N 49091
- [N5RH](https://openairdocs.org/aircraft/N5RH): [Hms Holdings LLC](https://openairdocs.org/faa-owner/HMS%20HOLDINGS%20LLC), [Charlotte, NC](https://openairdocs.org/faa-place/NC/Charlotte), built 2002, S/N 49093
- [N810SP](https://openairdocs.org/aircraft/N810SP): [Bakersfield, CA](https://openairdocs.org/faa-place/CA/Bakersfield), built 2004, S/N 49099, Sale reported
- [N918SP](https://openairdocs.org/aircraft/N918SP): [Albatross Air Inc](https://openairdocs.org/faa-owner/ALBATROSS%20AIR%20INC), [Beaver, WV](https://openairdocs.org/faa-place/WV/Beaver), built 2004, S/N 49101
- [N991W](https://openairdocs.org/aircraft/N991W): [Tailwinds LLC](https://openairdocs.org/faa-owner/TAILWINDS%20LLC), [Houston, TX](https://openairdocs.org/faa-place/TX/Houston), built 2007, S/N 49122

## NTSB investigations (3)

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 ERA15CA081](https://openairdocs.org/ntsb/ERA15CA081), Dec 21, 2014: Bell 430 (N430WH), Miami Gardens, FL, substantial damage. Probable cause: The pilot's misjudgment of his helicopter's position relative to a parked helicopter during a pedal turn.
- [NTSB CEN14LA103](https://openairdocs.org/ntsb/CEN14LA103), Jan 5, 2014: Bell 430 (N430CT), West Delta 109, substantial damage. Probable cause: The pilot’s failure to maintain tail rotor clearance from a handrail on a crane davit on an oil platform during landing.
- [NTSB WPR13CA329](https://openairdocs.org/ntsb/WPR13CA329), Jul 13, 2013: Bell Helicopter Textron 206L-1 (N123HP), Inyokern, CA, substantial damage. Probable cause: The failure of the pilot to maintain aircraft control during a practice autorotation maneuver and the pilot providing training's delayed remedial action which resulted in a hard landing. Contributing…

## FAA accident and incident reports (6)

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.

- [Accident 20141221023231A](https://openairdocs.org/incident/20141221023231A), Dec 21, 2014: Bell 430 (N430WH), Miami Gardens, FL, Substantial damage. While hover taxiing helicopter (N430WH) to a parking pad the tail rotor made contact with the main rotor blade tip of an unoccupied parked helicopter (N155WH).
- [Accident 20140105002489A](https://openairdocs.org/incident/20140105002489A), Jan 5, 2014: Bell 430 (N430CT), Venice, LA, Substantial damage. Pilot was distracted with personal issues on short final to an offshore heliport. She allowed aircraft to make contact with hand rail on the gantry of the…
- [Accident 20130713013229A](https://openairdocs.org/incident/20130713013229A), Jul 13, 2013: Bell Helicopter Textron 206L-1 (N123HP), Inyokern, CA, Substantial damage. While performing a 180° auto rotation for company training, the PIC was unable to recover from a low power setting. The helicopter made hard contact with the…
- [Incident 20130118001779I](https://openairdocs.org/incident/20130118001779I), Jan 18, 2013: Bell 430 (N25CL), Kahului, HI, No damage. After encountering turbulence at mcgregor point (maui) on the way to lanai airport (hwaii) the auto pilot disengaged and the pilot lost airspeed light and…
- [Incident 20070602008009I](https://openairdocs.org/incident/20070602008009I), Jun 2, 2007: Bell 430 (N430SL), Boise, ID, No damage. (-23) After departing the Idaho helicopter facility (boi) for the st. lukes helipad in meridian Idaho, the pilot [privacy data omitted] was notified by ATC…
- [Incident 20070106000199I](https://openairdocs.org/incident/20070106000199I), Jan 6, 2007: Bell 430 (N431SL), Emmett, ID. (-23) On January 06, 2007, in bound to boise the pilot noticed the transmission quill chip light illuminated. The pilot notified boi approach and landed by…

## Service difficulty reports (87, newest 50)

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

- [SDR QMLA2019092619076](https://openairdocs.org/sdr/QMLA2019092619076), Sep 26, 2019: FILTER. ABNORMAL. DURING CLIMB OUT, PILOT TURNED ON AIR CONDITIONING SYSTEM AND CABIN FILLED WITH SMOKE. PILOT IMMEDIATELY RETURNED BACK TO BASE AND MAINTENANCE WAS ON SITE TO IN
- [SDR QMLA2018101118110](https://openairdocs.org/sdr/QMLA2018101118110), Oct 10, 2018: MOUNT. CRACKED. DURING PREFLIGHT INSPECTION, FOUND RIGHT HAND TRANSMISSION MOUNT ASSEMBLY P/N 230-031-619-101 CRACKED AT THE EAR FOR THE LATERAL ISOLATION MOUNT ATTACH POINT.
- [SDR K2DA2020012220](https://openairdocs.org/sdr/K2DA2020012220), Oct 3, 2018: BLADE. DAMAGED.  AT 1104 HST, WAS AT APPROXIMATELY N19.54`02" W156.06`58" TRANSITIONING THROUGH PHKO CLASS D AIRSPACE AT 1350`MSL AND 125 KIAS ON A HEADING OF 165 DEGREES, EN R
- [SDR 2PJA20180717001](https://openairdocs.org/sdr/2PJA20180717001), Jul 17, 2018: TRANSDUCER. FAILED. ON TAKEOFF, DURING CLIMB NR 2 HYDRAULIC PRESSURE REDUCED TO 0 PSI. PAGE 2 CAUTION WAS ILLUMINATED. AIRCRAFT DIVERTED TO KMTN. MAINTENANCE REMOVED AND REPLACED T
- [SDR Q6HA2016092900001](https://openairdocs.org/sdr/Q6HA2016092900001), Sep 27, 2016: WIRE. BROKEN. WITH LANDING GEAR SELECTED DOWN THE LANDING GEAR DOES NOT EXTEND INTERMITTENTLY. WARNING HORN DOES SOUND WITH GEAR HANDLE DOWN AND GEAR UP. WIRE G11A22 FOUND BR
- [SDR QMLA201601316010](https://openairdocs.org/sdr/QMLA201601316010), Feb 13, 2016: ENGINE. MAKING METAL. ENGINE REMOVAL DUE TO CHIP EVENTS IN SUMP CHIP DETECTOR.
- [SDR CA151102009](https://openairdocs.org/sdr/CA151102009), Oct 30, 2015: TUBE. DAMAGED. (CAN) THE FOLLOWING HAS BEEN REPORTED TO MFG: IN-FLIGHT SHUTDOWN. THE ACFT MADE A SAFE LANDING AND NO ADDITIONAL DAMAGE WAS DONE TO THE ACFT OR PERSONNEL. THE L
- [SDR HEER20150825656](https://openairdocs.org/sdr/HEER20150825656), Aug 25, 2015: BEARING. SPALLED. ENGINE REMOVED 8-12-15 DUE TO OVERTORQUE. REPLACED TURBINE NR 5 BEARING DUE TO DEEP SCRATCHES ON BALLS AND POSSIBLE SPALLING ON BEARING OUTER RACE. INSTALLED NE
- [SDR CA150827010](https://openairdocs.org/sdr/CA150827010), Aug 20, 2015: SHEAR RESTRAINT. DEBONDED. (CAN) ACFT EXPERIENCE HIGH LATERAL VIBRATION IN FLIGHT. ACFT RETURNED TO BASE AND VISUAL INSPECTION REVEALED ELASTOMERIC DEBONDED ON SHEAR RESTRAINT.
- [SDR CA150429014](https://openairdocs.org/sdr/CA150429014), Apr 26, 2015: ENGINE. MALFUNCTIONED. (CAN) ACFT REPORTED TO HAVE SUFFERED A HARD LANDING FOLLOWING A PROBLEM WITH THE NR 1 ENGINE. A/C SKIDS ARE SPLAYED.
- [SDR CA150505001](https://openairdocs.org/sdr/CA150505001), Apr 26, 2015: SUN GEAR. FAULTY. (CAN) FINDINGS BY STEPS OF OCCURRENCE: A CRACK SOUND DURING HOVER HEARD BY EVERYONE INCLUDING PASSENGERS. BOTH ENGINES NP POWER TURBINE RPM REACHED TO PERCENT 1
- [SDR CA150421007](https://openairdocs.org/sdr/CA150421007), Apr 14, 2015: NUT. DAMAGED. (CAN) TWO ANCHOR NUTS WERE FOUND BROKEN, CRACKED AND MISSING THE RETENTION SPRING.
- [SDR QMLA2015021215010](https://openairdocs.org/sdr/QMLA2015021215010), Feb 12, 2015: STRIP. CRACKED. DURING BLADE REMOVAL, FOR 100HR YOKE INSPECTION, FOUND CRACKS IN ABRASION STRIP ON LE OF BLADE SN A-2180. DETERMINED CRACK IS OUT OF LIMITS IAW THE MM.
- [SDR QMLA2014061614074](https://openairdocs.org/sdr/QMLA2014061614074), Jun 16, 2014: YOKE. CRACKED. UPON INITIAL INSPECTION FOUND FOUR CRACKS IN MAIN ROTOR YOKE LOCATED BETWEEN STATION 26 & 31. CRACKS ARE 2 TO 4.5 INCHES IN LENGTH. AFTER REMOVING SEALANT FROM 
- [SDR CA131121001](https://openairdocs.org/sdr/CA131121001), Nov 14, 2013: ENGINE. FAILED. (CAN) DURING AN OFFSHORE FLIGHT, THE NR 1 ENGINE EXPERIENCED A SUMP CHIP LIGHT, THEN A LOUD BANG AND LOSS OF OIL PRESSURE. ENGINE WAS SECURED AND THE ACFT FLOWN
- [SDR QMLA2013110613159](https://openairdocs.org/sdr/QMLA2013110613159), Nov 6, 2013: YOKE. CRACKED. WHILE PERFORMING 150 HR INSPECTION OF MAIN ROTOR YOKE, FOUND SIX NEW CRACKS SINCE LAST INSPECTION. SMALLEST CRACK WAS 0.5 AND LONGEST CRACK 3.375. FOUR ON TOP O
- [SDR QMLA2013090413126](https://openairdocs.org/sdr/QMLA2013090413126), Sep 4, 2013: STUD. BROKEN. STUD HAD SHEARED OFF OF THE TAIL ROTOR GEARBOX MOUNTING FLANGE AT ONE O`CLOCK POSITION. NOTICED POSITIONS THREE, FIVE AND ELEVEN O`CLOCK STUDS WERE LOOSE AS WEL
- [SDR CA130618008](https://openairdocs.org/sdr/CA130618008), Jun 13, 2013: CONTROL TUBE. CRACKED. (CAN) DURING A ROUTINE ANNUAL INSPECTION, WHILE INSPECTING THE TAIL ROTOR FLIGHT CONTROLS IN THE BELLY OF THE ACFT, SOME CHAFING WAS NOTED ON CONTROL TUBE, PN 4
- [SDR CA130325016](https://openairdocs.org/sdr/CA130325016), Mar 24, 2013: CONTROL TUBE. BROKEN. (CAN) PILOT LOST THE TAIL ROTOR CONTROL DURING FLIGHT. ROD END BROKEN.
- [SDR Q2HA20121109001](https://openairdocs.org/sdr/Q2HA20121109001), Oct 27, 2012: FITTING. LOOSE. ON OCTOBER 26, 2012 THE NR 1 ENGINE FUEL NOZZLE WAS REMOVED AND RESHIMMED FOR AN INTERMITTENT STARTING PROBLEM. THE MAINTENANCE ACTION WAS COMPLETED AND SIGNED 
- [SDR QMLA2012050912076](https://openairdocs.org/sdr/QMLA2012050912076), May 9, 2012: ENGINE. MAKING METAL. NR 1 ENGINE SCAVENGE CHIP LIGHT ILLUMINATED DURING START UP. REMOVED SCAVENGE CHIP DETECTOR AND VISUALLY INSPECTED. FOUND MASS QUANTITIES OF METAL ON THE CHIP D
- [SDR QMLA2012021412024](https://openairdocs.org/sdr/QMLA2012021412024), Feb 14, 2012: STATIC PORT. SHORTED. PILOT REPORTED ELECTRICAL FUMES IN COCKPIT. FOUND STATIC PORT SHORTED
- [SDR CA061023003](https://openairdocs.org/sdr/CA061023003), Oct 20, 2011: CONTROL TUBE. SCRATCHED. (CAN) CONTROL TUBE, PN 222-001-021-145 WAS INSTALLED ON WRONG SIDE OF PILOT CYCLIC STICK LOWER LEVER CAUSING A FOULING CONDITION WITH THE ACFT STRUCTURE IN THE 
- [SDR AC2R0CT03062011](https://openairdocs.org/sdr/AC2R0CT03062011), Mar 6, 2011: SHAFT. CRACKED. OUTER SHAFT FOUND CRACKED AT TT 259.0 AT DISASSEMBLY. ENGINE WAS REMOVED FOR SMOKING ON SHUTDOWN AND VXP INDICATED VIBRATIONS TRENDING UP. RAN ON TEST CELL AND 
- [SDR CA100812001](https://openairdocs.org/sdr/CA100812001), Aug 4, 2010: ROD END. LEAKING. MFG RECEIVED REPORT OF A 430 COLLECTIVE FLIGHT CONTROL MALFUNCTION DURING PREPARATION FOR TAKEOFF. EVENT OCCURED ON GROUND. AFTER ACFT WAS SHUTDOWN A OIL LEAK W
- [SDR QMLA2010051810014](https://openairdocs.org/sdr/QMLA2010051810014), May 18, 2010: HANGER ASSY. SHEARED. DURING ROUTINE INSPECTION DISCOVERED MOUNTING FLANGE BROKE OFF OF THE NR1 TAIL ROTOR DRIVE SHAFT HANGER BRG. PERFORMED INSPECTION OF THE SURROUNDING AREA AND RE
- [SDR 1E9R201001](https://openairdocs.org/sdr/1E9R201001), Feb 19, 2010: BLADE. CRACKED. ACFT WAS FLOWN TO FACILITY, REPORTED DEBONDING OF TAIL ROTOR BLADE L/E AT TIP OF BLADE. UPON FURTHER INVESTIGATION OF BLADE, IT WAS DISCOVERED THAT THE ROOT END
- [SDR CA100122007](https://openairdocs.org/sdr/CA100122007), Jan 20, 2010: STUD. LOOSE. (CAN) QTY (2) STUDS PARTIALLY BACKED OUT OF THE THREADED HOLES OF THE 2-1/2 BRG CAGE MOUNTING BOSS. STUDS BACKED OUT APPROX 1 AND 2 THREADS RESPECTIVELY. NUTS O
- [SDR AC2A2009090183074](https://openairdocs.org/sdr/AC2A2009090183074), Sep 1, 2009: UNKNOWN. MALFUNCTIONED. SIX MINUTES OUT OF VENICE, LA, TRANSMISSION
- [SDR QMLR MC708](https://openairdocs.org/sdr/QMLR%20MC708), Aug 27, 2009: BLADE. CRACKED. FOUND TAIL ROTOR BLADE ROOT TO BE CRACKED IN VICINITY OF PITCH HORN.
- [SDR AC2A2009053181959](https://openairdocs.org/sdr/AC2A2009053181959), May 31, 2009: PICKUP. MALFUNCTIONED. ENROUTE, YELLOW M/ECU2 INDICATOR, WHITE ECU INDICATOR ABOVE THE NR 2 ENGINE TQ AND NP INDICATION FLUCTUATED FOR ABOUT FIVE MINUTES BEFORE IT RETURNED TO NORMAL 
- [SDR AC2A2009050381739](https://openairdocs.org/sdr/AC2A2009050381739), May 3, 2009: WARNING LIGHT. ILLUMINATED. FLYING FROM THE HERCULES 120 TO 299B AND THE NR1 M/ECU CAUTION LIGHT ILLUMINATED IN FLIGHT, RETURNED TO DEPARTURE AND SHUTDOWN.
- [SDR AC2A2009042481568](https://openairdocs.org/sdr/AC2A2009042481568), Apr 24, 2009: ECU. FAULTY. IN FLIGHT, YELLOW M/ECU2 LIGHT ILLUMINATED, FOLLOWED BY A WHITE ECU LIGHT ABOVE THE NR2 ENGINE TORQUE. RETARDING THE THROTTLE TO IDLE HAD NO EFFECT ON THE NR2 N
- [SDR AC2A2009031181030](https://openairdocs.org/sdr/AC2A2009031181030), Mar 11, 2009: WARNING MESSAGE. ILLUMINATED. TAKING OFF FROM SP 77A TO WD 109 AND THE 1 M/ECU 2 LIGHT ILLUMINATED ALONG WITH THE ECU LIGHT ABOVE THE NR 1 TORQUE AND THE FADEC HORN. WENT TO THE MANUAL MODE 
- [SDR AC2A2009031081018](https://openairdocs.org/sdr/AC2A2009031081018), Mar 10, 2009: WARNING MESSAGE. ILLUMINATED. LANDED AT 0945 WHEN THE 1 M/ECU 2 LIGHT ILLUMINATED IN FLIGHT. MX CAME OUT TO THE ACFT & CLEARED THE FAULT WITH COMPUTER. TOOK OFF AT 1025 AND 5 MINUTES INTO TH
- [SDR 2009FA0000275](https://openairdocs.org/sdr/2009FA0000275), Feb 9, 2009: NUT. LOOSE. DURING COURSE OF SCHEDULED INSP, NUT RETAINING THE TAIL ROTOR PITCH CHANGE CONTROL BEARING WAS FOUND TO BE LOOSE ALLOWING BEARING INNER RACE TO SPIN ON ITS SEAT
- [SDR AC2A2008080377650](https://openairdocs.org/sdr/AC2A2008080377650), Aug 3, 2008: WARNING MESSAGE. FALSE ACTIVATION. DURING THE RETURN FLIGHT FROM, EXPERIENCED A ECU (FADEC) FAILURE ON THE NR 2 ENGINE. IAW THE EMERGENCY PROCEDURES, REDUCED THE THROTTLE ON THE NR 2 ENGINE AND S
- [SDR 4911905172008](https://openairdocs.org/sdr/4911905172008), May 17, 2008: VERTICAL GYRO. FAULTY. DURING CRUISE FLIGHT, PILOT FELT A VIBRATION IN THE AC FOLLOWED BY ATTITUDE EXCURSIONS IN THE PITCH AXIS. THIS OCCURRED OVER A PERIOD OF APPROXIMATELY (2) MINUT
- [SDR AC2A119524](https://openairdocs.org/sdr/AC2A119524), Apr 21, 2008: GEARBOX. CRACKED. FLANGE MOUNTING EAR COMPLETELY CRACKED ON TAIL ROTOR GEAR BOX OUTPUT SLEEVE HOUSING.
- [SDR AC2A119271](https://openairdocs.org/sdr/AC2A119271), Mar 17, 2008: WARNING LIGHT. ILLUMINATED. NR 2 ENGINE CHIP SUMP LIGHT ILLUMINATED IN FLIGHT. FOLLOWED EMERGENCY CHECKLIST AND LANDED. REMOVED CHIP PLUGS, CLEANED AND PERFORMED PENALTY RUN. FOUND SERVICE
- [SDR AC2A118979](https://openairdocs.org/sdr/AC2A118979), Mar 2, 2008: STOP. CRACKED. STOP CRACKED IN RADIUS.
- [SDR 495](https://openairdocs.org/sdr/495), Jan 20, 2008: MAGNETIC SEAL. LEAKING. NOTICED FLUCTUATING ENGINE OIL PRESSURE ON NR 2 ENGINE. PULLED OUT AIRCRAFT EMERGENCY PROCEDURE CHECKLIST. FOLLOWED EMERGENCY PROCEDURE. OIL PRESSURE DECREASED 
- [SDR AC2A118178](https://openairdocs.org/sdr/AC2A118178), Nov 11, 2007: ENGINE. WARNING LIGHT. DURING FLIGHT THE NR 2 ENGINE CHIP SCAV CAUTION LIGHT BEGAN TO FLICKER. NO FLUCTUATIONS IN EITHER ENGINE TEMP OR PRESSURE WERE NOTED. CONTINUED FLIGHT TO VENICE
- [SDR AC2A117289](https://openairdocs.org/sdr/AC2A117289), Aug 31, 2007: PICKUP. INOPERATIVE. NR 1 ECU FAILED FIXED FLOW. AIRCRAFT WAS REPOSITIONING FOR TAKEOFF, AT A HOVER, THEN SET LIGHT ON SKIDS, PLACED INTO MANUAL MODE, THROTTLE REDUCED, SET FULL ON 
- [SDR AC2A117123](https://openairdocs.org/sdr/AC2A117123), Aug 27, 2007: TRANSMISSION. MAKING METAL. XMSN CHIP / CHP PLTRY GB ILLUMINATED IN FLIGHT 8 MINUTES AFTER DEPARTURE FROM ICY HELIPORT. AIRCRAFT RETURNED TO ICY WITHOUT INCIDENT.SMALL AMOUNT OF METAL WAS 
- [SDR AC2A113419](https://openairdocs.org/sdr/AC2A113419), Jan 3, 2007: SENSOR. MALFUNCTIONED. NR 1 ENGINE NP2 RPM PICKUP MALFUNCTIONED/FAILED. INSTALLED SERVICABLE PART.
- [SDR AC2A113281](https://openairdocs.org/sdr/AC2A113281), Dec 18, 2006: TRANSMITTER. FAILED. SHORTLY AFTER TAKING OFF FROM ST37 I EXPERIENCED A NR 2 ECU FAILURE TO THE HIGH SIDE. FOLLOWED THE EMERGENCY CHECKLIST BY GOING TO MANUAL CONTROL OF NR 2 ENGINE
- [SDR AC2A112008](https://openairdocs.org/sdr/AC2A112008), Oct 22, 2006: ACTUATOR. MALFUNCTIONED. CAUSED NR 1 PITCH ERROR AND KICKED AFCS INTO SAS MODE, REPLACED ACTUATOR.
- [SDR AC2A110528](https://openairdocs.org/sdr/AC2A110528), Jul 27, 2006: BEARING. DELAMINATED. FOUND DELAMINATED / REPLACED BEARING.
- [SDR AC2A110527](https://openairdocs.org/sdr/AC2A110527), Jul 27, 2006: BEARING. DELAMINATED. FOUND DELAMINATED / REPLACED BEARING

All 87: https://openairdocs.org/engine/rolls-royce-250-c40b/reports.md

## STCs that may be installed (OpenAirDocs) (1)

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 SE578GL](https://openairdocs.org/stc/SE578GL): Installation of a fuel flow transducer. Shadin Avionics

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