# Rolls-Royce 250-C47B

- Type: Engine model (FAA registry)
- Registry code: 54585
- Manufacturer (registry): ROLLS-ROYC
- Model: 250-C47B
- Engine type: Turbo-shaft
- Power: 650 hp
- Data sheet: [TCDS E1GL](https://openairdocs.org/tcds/E1GL) (OpenAirDocs)
- Holder: Rolls-Royce Corporation
- Installed in: 537 registered aircraft
- Page: https://openairdocs.org/engine/rolls-royce-250-c47b

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 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Historical (superseded or no longer in force):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 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) (2)

- [SAIB NE-06-12R1](https://openairdocs.org/saib/NE-06-12R1): . Issued Jan 13, 2006
- [SAIB NE-06-12](https://openairdocs.org/saib/NE-06-12) (historical): . Issued Dec 2, 2005

## Registered aircraft (537, first 50)

- [N1028S](https://openairdocs.org/aircraft/N1028S): [St Johns County Sheriffs Office](https://openairdocs.org/faa-owner/ST%20JOHNS%20COUNTY%20SHERIFFS%20OFFICE), [Saint Augustine, FL](https://openairdocs.org/faa-place/FL/Saint%20Augustine), built 2013, S/N 54405
- [N105AM](https://openairdocs.org/aircraft/N105AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54024
- [N10LE](https://openairdocs.org/aircraft/N10LE): [Slws LLC](https://openairdocs.org/faa-owner/SLWS%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 2003, S/N 53556
- [N113AM](https://openairdocs.org/aircraft/N113AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54027
- [N114WH](https://openairdocs.org/aircraft/N114WH): [Westwind Helicopters Inc](https://openairdocs.org/faa-owner/WESTWIND%20HELICOPTERS%20INC), [Santa Fe, TX](https://openairdocs.org/faa-place/TX/Santa%20Fe), built 2001, S/N 53501
- [N115SF](https://openairdocs.org/aircraft/N115SF): [Redding Air Service Inc](https://openairdocs.org/faa-owner/REDDING%20AIR%20SERVICE%20INC), [Redding, CA](https://openairdocs.org/faa-place/CA/Redding), built 2013, S/N 54388
- [N1170](https://openairdocs.org/aircraft/N1170): [Gm Leasing Co LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20CO%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 2001, S/N 53478
- [N118SP](https://openairdocs.org/aircraft/N118SP): [Minnesota State Patrol](https://openairdocs.org/faa-owner/MINNESOTA%20STATE%20PATROL), [Saint Paul, MN](https://openairdocs.org/faa-place/MN/Saint%20Paul), built 2005, S/N 53646
- [N125WH](https://openairdocs.org/aircraft/N125WH): [Westwind Helicopters Inc](https://openairdocs.org/faa-owner/WESTWIND%20HELICOPTERS%20INC), [Santa Fe, TX](https://openairdocs.org/faa-place/TX/Santa%20Fe), built 2000, S/N 53411
- [N12CT](https://openairdocs.org/aircraft/N12CT): [Ct Air LLC](https://openairdocs.org/faa-owner/CT%20AIR%20LLC), [Clovis, NM](https://openairdocs.org/faa-place/NM/Clovis), built 2006, S/N 53743
- [N135AM](https://openairdocs.org/aircraft/N135AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2013, S/N 54385
- [N138PD](https://openairdocs.org/aircraft/N138PD): [Puerto Rico Police Department](https://openairdocs.org/faa-owner/PUERTO%20RICO%20POLICE%20DEPARTMENT), [San Juan, PR](https://openairdocs.org/faa-place/PR/San%20Juan), built 2004, S/N 53630
- [N139PD](https://openairdocs.org/aircraft/N139PD): [Puerto Rico Police Dept](https://openairdocs.org/faa-owner/PUERTO%20RICO%20POLICE%20DEPT), [San Juan, PR](https://openairdocs.org/faa-place/PR/San%20Juan), built 2004, S/N 53631
- [N13FV](https://openairdocs.org/aircraft/N13FV): [22t Aero LLC](https://openairdocs.org/faa-owner/22T%20AERO%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 2016, S/N 54672
- [N13FW](https://openairdocs.org/aircraft/N13FW): [Fly Hangar 13 LLC](https://openairdocs.org/faa-owner/FLY%20HANGAR%2013%20LLC), [Mico, TX](https://openairdocs.org/faa-place/TX/Mico), built 2013, S/N 54417
- [N13MX](https://openairdocs.org/aircraft/N13MX): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2012, S/N 54326
- [N140HL](https://openairdocs.org/aircraft/N140HL): [Gm Leasing Company LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20COMPANY%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 2003, S/N 53575
- [N1416](https://openairdocs.org/aircraft/N1416): [Gm Leasing Company LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20COMPANY%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), S/N 53110
- [N144MA](https://openairdocs.org/aircraft/N144MA): [Minuteman Aviation Inc](https://openairdocs.org/faa-owner/MINUTEMAN%20AVIATION%20INC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 1998, S/N 53255
- [N148AW](https://openairdocs.org/aircraft/N148AW): [Aircraft Trustee Services Inc Trustee](https://openairdocs.org/faa-owner/AIRCRAFT%20TRUSTEE%20SERVICES%20INC%20TRUSTEE), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 2008, S/N 53879
- [N149PD](https://openairdocs.org/aircraft/N149PD): [Administracion De Los Servicios Generales](https://openairdocs.org/faa-owner/ADMINISTRACION%20DE%20LOS%20SERVICIOS%20GENERALES), [San Juan, PR](https://openairdocs.org/faa-place/PR/San%20Juan), S/N 54143
- [N150AM](https://openairdocs.org/aircraft/N150AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54046
- [N152AM](https://openairdocs.org/aircraft/N152AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54049
- [N153PA](https://openairdocs.org/aircraft/N153PA): [Gm Leasing Company LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20COMPANY%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 2013, S/N 54455
- [N15MX](https://openairdocs.org/aircraft/N15MX): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2012, S/N 54327
- [N160AM](https://openairdocs.org/aircraft/N160AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54038
- [N163RL](https://openairdocs.org/aircraft/N163RL): [Rotorcraft Leasing Company LLC](https://openairdocs.org/faa-owner/ROTORCRAFT%20LEASING%20COMPANY%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), S/N 53163
- [N173SF](https://openairdocs.org/aircraft/N173SF): [Gm Leasing Company LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20COMPANY%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), S/N 53978
- [N17DE](https://openairdocs.org/aircraft/N17DE): [Bell Textron Inc](https://openairdocs.org/faa-owner/BELL%20TEXTRON%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2006, S/N 53700
- [N181MA](https://openairdocs.org/aircraft/N181MA): [Minuteman Aviation Inc](https://openairdocs.org/faa-owner/MINUTEMAN%20AVIATION%20INC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 2007, S/N 53789
- [N184AM](https://openairdocs.org/aircraft/N184AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54044
- [N184SF](https://openairdocs.org/aircraft/N184SF): [Gm Leasing Co LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20CO%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 1996, S/N 53087
- [N189AM](https://openairdocs.org/aircraft/N189AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54047
- [N18BH](https://openairdocs.org/aircraft/N18BH): [Abc Helicopters Inc](https://openairdocs.org/faa-owner/ABC%20HELICOPTERS%20INC), [Jefferson, WI](https://openairdocs.org/faa-place/WI/Jefferson), built 1997, S/N 53217
- [N18SP](https://openairdocs.org/aircraft/N18SP): [State Of New York](https://openairdocs.org/faa-owner/STATE%20OF%20NEW%20YORK), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), built 2002, S/N 53533
- [N190AE](https://openairdocs.org/aircraft/N190AE): [Textron Financial Corp](https://openairdocs.org/faa-owner/TEXTRON%20FINANCIAL%20CORP), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita), built 2014, S/N 54511
- [N193AM](https://openairdocs.org/aircraft/N193AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2010, S/N 54004
- [N196TA](https://openairdocs.org/aircraft/N196TA): [Helo N426ha LLC](https://openairdocs.org/faa-owner/HELO%20N426HA%20LLC), [Richmond, VA](https://openairdocs.org/faa-place/VA/Richmond), built 2009, S/N 53925
- [N1MH](https://openairdocs.org/aircraft/N1MH): [Isaiah 40v31 LLC](https://openairdocs.org/faa-owner/ISAIAH%2040V31%20LLC), [Orlando, FL](https://openairdocs.org/faa-place/FL/Orlando), built 2013, S/N 54398
- [N206TL](https://openairdocs.org/aircraft/N206TL): [Turbines Ltd](https://openairdocs.org/faa-owner/TURBINES%20LTD), [West Point, NE](https://openairdocs.org/faa-place/NE/West%20Point), S/N 53589
- [N207SJ](https://openairdocs.org/aircraft/N207SJ): [San Juan Aviation LLC](https://openairdocs.org/faa-owner/SAN%20JUAN%20AVIATION%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 53721
- [N208AM](https://openairdocs.org/aircraft/N208AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2013, S/N 54460
- [N214AM](https://openairdocs.org/aircraft/N214AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2014, S/N 54485
- [N218AM](https://openairdocs.org/aircraft/N218AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2014, S/N 54565
- [N218BH](https://openairdocs.org/aircraft/N218BH): [Osceola County Sheriffs Office](https://openairdocs.org/faa-owner/OSCEOLA%20COUNTY%20SHERIFFS%20OFFICE), [Kissimmee, FL](https://openairdocs.org/faa-place/FL/Kissimmee), built 2006, S/N 53704
- [N219HA](https://openairdocs.org/aircraft/N219HA): [US Trinity Equipment LLC](https://openairdocs.org/faa-owner/US%20TRINITY%20EQUIPMENT%20LLC), [Argyle, TX](https://openairdocs.org/faa-place/TX/Argyle), built 2008, S/N 53859
- [N21CL](https://openairdocs.org/aircraft/N21CL): [Helicopters Inc](https://openairdocs.org/faa-owner/HELICOPTERS%20INC), [Linden, NJ](https://openairdocs.org/faa-place/NJ/Linden), built 2002, S/N 53536
- [N223AM](https://openairdocs.org/aircraft/N223AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2009, S/N 53954
- [N224AM](https://openairdocs.org/aircraft/N224AM): [Air Methods LLC](https://openairdocs.org/faa-owner/AIR%20METHODS%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village), built 2011, S/N 54070
- [N225FM](https://openairdocs.org/aircraft/N225FM): [Coastal Investments Inc](https://openairdocs.org/faa-owner/COASTAL%20INVESTMENTS%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2000, S/N 53425

All 537: https://openairdocs.org/engine/rolls-royce-250-c47b/aircraft.md

## NTSB investigations (43)

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 ERA26FA309](https://openairdocs.org/ntsb/ERA26FA309), Aug 19, 2026: Bell Helicopter Textron Canada 407 (N873ST), Carlisle, PA, substantial damage, 1 fatal, investigation ongoing
- [NTSB CEN26LA185](https://openairdocs.org/ntsb/CEN26LA185), May 13, 2026: Bell 407 (N652AE), Dallas, TX, substantial damage. Probable cause: The pilot’s failure to maintain situational awareness and clearance from the helipad surveillance camera during liftoff.
- [NTSB WPR26LA172](https://openairdocs.org/ntsb/WPR26LA172), Apr 29, 2026: Bell 407 (N407BB), Young, AZ, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a tree stump during landing in mountainous terrain.
- [NTSB ERA26LA170](https://openairdocs.org/ntsb/ERA26LA170), Apr 11, 2026: Bell 407 (N314JP), Jacksonville, FL, substantial damage. Probable cause: The pilot’s improper recovery from a practice autorotation, which resulted in a hard landing. Contributing to the accident was the flight instructor’s inadequate supervision of the pilot receiving…
- [NTSB WPR26LA099](https://openairdocs.org/ntsb/WPR26LA099), Feb 5, 2026: Bell Helicopter Textron Canada BHT407 (N407VS), Libby, MT, substantial damage. Probable cause: The pilot's failure to maintain clearance from a light post during landing.
- [NTSB WPR26FA098](https://openairdocs.org/ntsb/WPR26FA098), Feb 5, 2026: Bell 407 (N56AZ), Flagstaff, AZ, destroyed, 2 fatal, investigation ongoing
- [NTSB ENG24LA028](https://openairdocs.org/ntsb/ENG24LA028), Jul 26, 2024: Bell 407 (N793SF), Oktaha, OK, incident, minor damage. Probable cause: The loss of engine power due to high cycle fatigue failure of a power turbine stage 3 turbine wheel blade. The resulting engine imbalance caused a decoupling of the gas producer stage 1 and stage 2…
- [NTSB CEN24LA143](https://openairdocs.org/ntsb/CEN24LA143), Mar 29, 2024: Bell Helicopter Textron Canada 407 (N910GX), Moran, KS, substantial damage. Probable cause: An in-flight collision with birds while in cruise flight.
- [NTSB ERA24LA045](https://openairdocs.org/ntsb/ERA24LA045), Nov 16, 2023: Bell 407 (N26VA), Chesterfield, VA, substantial damage. Probable cause: A hard landing, which resulted in a main rotor strike of the left vertical stablizer.
- [NTSB ERA24FA003](https://openairdocs.org/ntsb/ERA24FA003), Oct 8, 2023: Bell Helicopter Textron Canada 407 (N802JR), Croydon, NH, substantial damage, 1 fatal. Probable cause: The pilot’s loss of control during the initial climb in dark night conditions due to spatial disorientation, which resulted in a steep banking descent into trees and terrain. Contributing to the…
- [NTSB ERA23LA319](https://openairdocs.org/ntsb/ERA23LA319), Aug 1, 2023: Bell Helicopter Textron Canada 407 (N31PB), North Charleston, SC, substantial damage. Probable cause: A failure of the tail rotor pitch change lever assembly due to incorrectly installed bolts and maintenance personnel’s inadequate inspection of the tail rotor control system.
- [NTSB CEN23FA071](https://openairdocs.org/ntsb/CEN23FA071), Dec 29, 2022: Bell 407 (N595RL), Galliano, LA, substantial damage, 4 fatal. Probable cause: The pilot’s failure to ensure the helicopter was clear of obstacles before takeoff from the helideck, which resulted in the helicopter’s right landing skid pivoting about a helideck perimeter light…
- [NTSB CEN23LA053](https://openairdocs.org/ntsb/CEN23LA053), Nov 19, 2022: Bell 407 (N184SF), Searcy, AR, substantial damage. Probable cause: The pilot’s failure to maintain clearance from the electrical box while repositioning.
- [NTSB ERA22FA257](https://openairdocs.org/ntsb/ERA22FA257), Jun 4, 2022: Bell Helicopter Textron Canada 407 (N98ZA), Fairfield, NJ, substantial damage. Probable cause: The failure of maintenance personnel to properly secure the tail rotor crosshead drive plate and the failure of maintenance personnel, the maintenance pilot, and the accident pilot to detect the…
- [NTSB WPR22LA174](https://openairdocs.org/ntsb/WPR22LA174), May 11, 2022: Bell Helicopter Textron Canada 407 (N999GH), Livermore, CA, substantial damage. Probable cause: Loss of engine power due to the pilot inadvertently selecting engine IDLE mode while in flight, which reduced rotor and engine speed to a level that could not sustain flight.
- [NTSB CEN21LA456](https://openairdocs.org/ntsb/CEN21LA456), Sep 25, 2021: Bell 407 (N662RL), Patterson, LA, substantial damage. Probable cause: The pilot’s failure to maintain adequate clearance from a parked helicopter while hovering to reposition for takeoff.
- [NTSB ERA21LA264](https://openairdocs.org/ntsb/ERA21LA264), Jun 22, 2021: Bell 407 (N512TP), Tampa, FL, substantial damage. Probable cause: The pilot’s improper landing flare while making a power off practice autorotative landing. Contributing was the decreased visual cues provided by the recently paved runway during the night landing…
- [NTSB CEN20CA395](https://openairdocs.org/ntsb/CEN20CA395), Sep 15, 2020: Bell 407 (N489DM), Fort Worth, TX, substantial damage. Probable cause: The flight instructor’s delay in rolling the throttle to the fly position during a practice autorotation maneuver that resulted in a hard landing.
- [NTSB CEN20WA246](https://openairdocs.org/ntsb/CEN20WA246), Jun 24, 2020: Bell 407 (N120HH), Long Marston, United Kingdom, destroyed
- [NTSB CEN19LA092](https://openairdocs.org/ntsb/CEN19LA092), Mar 3, 2019: Bell 407 (N450AM), Union Center, SD, substantial damage. Probable cause: The ambulance driver’s failure to see the helicopter’s rotating main rotor blades in dark night conditions, which resulted in the ambulance’s inadvertent collision with the helicopter. Contributing…
- [NTSB CEN19FA072](https://openairdocs.org/ntsb/CEN19FA072), Jan 29, 2019: Bell 407 (N191SF), Zaleski, OH, destroyed, 3 fatal. Probable cause: The NTSB determines that the probable cause of this accident was Survival Flight's inadequate management of safety, which normalized pilots' and operations control specialists' noncompliance with…
- [NTSB CEN18CA072](https://openairdocs.org/ntsb/CEN18CA072), Jan 5, 2018: Bell Helicopter Textron Canada 407 (N214AM), Norfolk, NE, substantial damage. Probable cause: Maintenance personnel’s failure to properly secure the tail rotor drive shaft cover, which resulted in the cover departing the helicopter in flight.
- [NTSB CEN18FA033](https://openairdocs.org/ntsb/CEN18FA033), Nov 20, 2017: Bell Helicopter Textron Canada 407 (N620PA), Stuttgart, AR, destroyed, 3 fatal. Probable cause: An in-flight loss of control due to bird strikes.
- [NTSB CEN17LA188](https://openairdocs.org/ntsb/CEN17LA188), Jan 24, 2017: Bell 407 (N6040Y), Fort Worth, TX, substantial damage. Probable cause: The flight instructor's failure to prevent the engine/rotor overspeed condition during the demonstration maneuver and the excessive descent rate during the emergency landing, which resulted in a hard…
- [NTSB ERA16FA248](https://openairdocs.org/ntsb/ERA16FA248), Jul 11, 2016: Bell Helicopter Textron Canada 407 (N427TV), Hickory, KY, substantial damage, 1 fatal. Probable cause: Company maintenance personnel's inappropriate removal without replacement of the safety wires on the collective lever pin screws during a recent maintenance inspection, which resulted in the screws…
- [NTSB GAA16CA039](https://openairdocs.org/ntsb/GAA16CA039), Oct 30, 2015: Bell 407 (N420PH), Cameron, LA, substantial damage. Probable cause: The pilot's failure to remove a main rotor blade tiedown, which resulted in substantial damage to a main rotor blade when the engine was started.
- [NTSB CEN13FA122](https://openairdocs.org/ntsb/CEN13FA122), Jan 3, 2013: Bell Helicopter 407 (N445MT), Clear Lake, IA, destroyed, 3 fatal. Probable cause: The pilot’s inadvertent encounter with localized icing conditions and his subsequent in-flight loss of helicopter control.
- [NTSB WPR13TA081](https://openairdocs.org/ntsb/WPR13TA081), Dec 28, 2012: Bell Helicopter Textron Canada 407 (N407KS), Renton, WA, substantial damage. Probable cause: The pilot's failure to maintain helicopter control during takeoff from an unstable landing platform. Contributing to the accident was the operator's inadequate chocking procedures for the wheeled…
- [NTSB CEN13CA114](https://openairdocs.org/ntsb/CEN13CA114), Dec 25, 2012: Bell 407 (N489AE), McAllen, TX, substantial damage. Probable cause: The pilot’s failure to maintain clearance with a parked helicopter during takeoff.
- [NTSB WPR13IA059](https://openairdocs.org/ntsb/WPR13IA059), Nov 15, 2012: Bell 407 (N7160V), Riverton, WY, incident, minor damage. Probable cause: The pilot’s failure to maintain sufficient altitude to clear power lines while maneuvering at low altitude. Contributing to the accident was the pilot’s failure to follow company operating…
- [NTSB ERA13FA014](https://openairdocs.org/ntsb/ERA13FA014), Oct 10, 2012: Bell 407 (N108MF), Coolbaugh Township, PA, substantial damage, 2 fatal. Probable cause: The pilot’s decision to continue visual flight rules flight into instrument meteorological conditions due to self-imposed pressure to complete the trip, which resulted in impact with trees and…
- [NTSB CEN12IA518](https://openairdocs.org/ntsb/CEN12IA518), Aug 5, 2012: Bell 407 (N429PH), San Antonio, TX, incident, minor damage. Probable cause: The pilot’s failure to maintain clearance from a tower guy wire during the approach to a helipad at night.
- [NTSB ERA12TA251](https://openairdocs.org/ntsb/ERA12TA251), Mar 23, 2012: Bell 407 (N31PB), Delray Beach, FL, substantial damage. Probable cause: The pilot’s improper response to a simulated engine failure and the instructor’s delayed and improper remedial action.
- [NTSB WPR12GA106](https://openairdocs.org/ntsb/WPR12GA106), Feb 15, 2012: Bell 407 (N407HL), Moran Junction, WY, substantial damage, 1 fatal. Probable cause: The pilot’s failure to maintain yaw control while hovering at high density altitude, which resulted in a loss of tail rotor effectiveness.
- [NTSB CEN12IA096](https://openairdocs.org/ntsb/CEN12IA096), Dec 1, 2011: Bell Helicopter Textron Canada 407 (N435PH), Gulf Of Mexico, incident, no damage. Probable cause: The failure of the compressor section No. 2 bearing due to false brinnelling and fatigue.
- [NTSB WPR11LA056](https://openairdocs.org/ntsb/WPR11LA056), Nov 22, 2010: Bell 407 (N408UH), Riverdale, UT, substantial damage. Probable cause: The pilot's failure to maintain clearance from a highway marker sign while maneuvering.
- [NTSB ERA10IA459](https://openairdocs.org/ntsb/ERA10IA459), Aug 31, 2010: Bell Helicopter Textron Canada 407 (N516MT), Marion, VA, incident, no damage. Probable cause: The cardiac impairment of the pilot during a positioning flight.
- [NTSB OPS10IA132](https://openairdocs.org/ntsb/OPS10IA132), Apr 28, 2010: Bell 407 (N6YJ), Houston, TX, incident, no damage. Probable cause: The failure of the local controller to issue control instructions necessary to ensure positive control/standard separation of traffic operating within the Class B airspace.
- [NTSB CEN09CA604](https://openairdocs.org/ntsb/CEN09CA604), Sep 23, 2009: Bell 407 (N6040Y), Fort Worth, TX, substantial damage. Probable cause: Failure of the pilot to maintain control during landing.
- [NTSB CEN09CA203](https://openairdocs.org/ntsb/CEN09CA203), Feb 27, 2009: Bell 407 (N2592T), Lancaster, TX, substantial damage. Probable cause: The failure of the pilot to maintain adequate main rotor rpm and the failure of the CFI to provide appropriate instruction during the maneuver.
- [NTSB DEN08FA101](https://openairdocs.org/ntsb/DEN08FA101), Jun 8, 2008: Bell 407 (N416PH), Huntsville, TX, destroyed, 4 fatal. Probable cause: The pilot's failure to identify and arrest the helicopter's descent, which resulted in its impact with terrain. Contributing to the accident was the limited outside visual reference due to the dark…
- [NTSB DFW07IA184](https://openairdocs.org/ntsb/DFW07IA184), Aug 16, 2007: Bell 407 (N433PH), Gulf of Mexico, incident, no damage. Probable cause: Fatigue failure of the power turbine outer shaft for undetermined reasons.
- [NTSB FTW04FA097](https://openairdocs.org/ntsb/FTW04FA097), Mar 21, 2004: Bell 407 (N502MT), Pyote, TX, destroyed, 4 fatal. Probable cause: The pilot's inadvertent encounter with adverse weather, which resulted in the pilot failing to maintain terrain clearance. Contributing factors were the dark night conditions, the pilot's inadequate…

## FAA accident and incident reports (68, newest 50)

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 20260819011162A](https://openairdocs.org/incident/20260819011162A), Aug 19, 2026: Bell Helicopter Textron Canada 407 (N873ST), Carlisle, PA, Substantial damage. While hovering on north side of runway 28 approximately 150 from centerline helicopter was struck from behind by a Cessna 150. Since this was a mid-air…
- [Incident 20260626009479I](https://openairdocs.org/incident/20260626009479I), Jun 26, 2026: Bell Helicopter Textron Canada 407 (N465NE), Driggs, ID, Minor damage. The aircraft was maneuvering in a hover to a landing location on the airport ramp. Winds were 200 degrees at 20 knots gusting 29 knots. During a hover turn the…
- [Accident 20260429004799A](https://openairdocs.org/incident/20260429004799A), Apr 29, 2026: Bell 407 (N407BB), Young, AZ, Substantial damage. Pilot was flying the helicopter, for personal use, was landing in a clearing on a mountain range in Young, AZ. When during the landing sequence he struck a…
- [Accident 20260410004549A](https://openairdocs.org/incident/20260410004549A), Apr 10, 2026: Bell 407 (N314JP), Jacksonville, FL, Substantial damage. While conducting emergency procedures training (practice autorotation’s) with a third-party contractor the pilot flying (pf) entered an autorotation to a hard…
- [Accident 20260204001269A](https://openairdocs.org/incident/20260204001269A), Feb 4, 2026: Bell Helicopter Textron Canada 407 (N407VS), Libby, MT, Substantial damage. On 2/5/2026 at 20:15 local time, a Bell 407 helicopter was conducting part 135 EMS operations at the Libby, Montana hospital. Upon approach and landing, the…
- [Accident 20260204001189A](https://openairdocs.org/incident/20260204001189A), Feb 4, 2026: Bell 407 (N56AZ), Flagstaff, AZ, Destroyed, 2 fatal. Accident flight On the evening of February 4, 2026, at approximately 10:17 MST (local) a Bell 407 helicopter, registered as [privacy data omitted] and…
- [Incident 20250225013009I](https://openairdocs.org/incident/20250225013009I), Feb 25, 2025: Bell Helicopter Textron Canada 407 (N242MT), Tulsa, OK, Minor damage. On February 25, 2025 at approximately 2040 local, while initiating a descent to begin an approach, the aircraft struck a bird on the left windscreen. The bird…
- [Incident 20240818009829I](https://openairdocs.org/incident/20240818009829I), Aug 18, 2024: Bell 407 (N407RL), Oakridge, OR, Minor damage. This incident occured on a civil aircraft, conducting pao for the us forest service, during wildland firefighting water bucket operations. Pilot noticed damage…
- [Incident 20240813009819I](https://openairdocs.org/incident/20240813009819I), Aug 13, 2024: Bell Helicopter Textron Canada 407 (N193AM), Bullhead City, AZ, Minor damage. (Medivac) was inbound from the southeast for a full stop on the ramp. After landing, pilot stated they had a bird strike during approach at 2 miles and…
- [Incident 20240726011829I](https://openairdocs.org/incident/20240726011829I), Jul 26, 2024: Bell 407 (N793SF), Council Hill, OK, Minor damage. The Bell 407 helicopter was en route, returning to the base location after a patient transfer. During cruise flight at 1900 feet at night under night vision…
- [Accident 20240329002669A](https://openairdocs.org/incident/20240329002669A), Mar 29, 2024: Bell Helicopter Textron Canada 407 (N910GX), Moran, KS, Minor damage. EMS helicopter had been dispatched and was enroute VFR to pick up a patient. Aircraft was 130 KIAS at about 2500 feet MSL. Pilot spotted 3 birds but had no…
- [Accident 20231115019969A](https://openairdocs.org/incident/20231115019969A), Nov 15, 2023: Bell 407 (N26VA), Richmond, VA, Substantial damage. B407 main rotor contacted the left vertical finlet during landing. Aircraft was towed back to the hangar. Delayed notification. On advice from manufacturer…
- [Accident 20231008018469A](https://openairdocs.org/incident/20231008018469A), Oct 8, 2023: Bell Helicopter Textron Canada 407 (N802JR), Croydon, NH, Destroyed, 1 fatal. On October 8, 2023 at about 1930 local time, a Bell 407 rotorcraft impacted the ground under unknown circumstances. There was one fatality, and the helicopter…
- [Incident 20230909012239I](https://openairdocs.org/incident/20230909012239I), Sep 9, 2023: Bell 407 (N453R), Frankfort, KY, Minor damage. On September 09, 2023, a helicopter operating under FAR part 135 was repositioning in a hover taxi landing at Frankfort regional medical center when it…
- [Incident 20230901015239I](https://openairdocs.org/incident/20230901015239I), Sep 1, 2023: Bell Helicopter Textron Canada 407 (N190AE), Paris, TN, Minor damage. The helicopter was refueling with the engine operating at idle speed. The PIC was at the controls. The flight medic was pulling the refueling hose and…
- [Accident 20230801008179A](https://openairdocs.org/incident/20230801008179A), Aug 1, 2023: Bell Helicopter Textron Canada 407 (N31PB), North Charlesto, SC, Substantial damage. On August 1, 2023 at approximately 1530 hours (local), a Bell helicopter 407 was substantially damaged in an accident at the Charleston international airport…
- [Incident 20230526009819I](https://openairdocs.org/incident/20230526009819I), May 26, 2023: Bell 407 (N407TH), Moab, UT, Minor damage. May 26, 2023 2145 MDT Near Moab Utah [privacy data omitted] Bell 407 had bird strike on tail boom/tail rotor. 4 Persons on board, no injuries. Aircraft…
- [Incident 20230521002769I](https://openairdocs.org/incident/20230521002769I), May 21, 2023: Bell Helicopter Textron Canada 407 (N383AM), Pensacola, FL, Minor damage. While beginning the descent into the helipad atthe Pensacola hospital, the aircraft struck a bird causing damage to the upper right corner of the windscreen.…
- [Incident 20230416002529I](https://openairdocs.org/incident/20230416002529I), Apr 16, 2023: Bell Helicopter Textron Canada 407 (N920SF), Ardmore, TN, Minor damage. April 16, 2023 - received report from dictor of operations that the Ardmore Tennessee base had a bird strike on aproch to base. Pilot completed the landing to…
- [Incident 20230205003689I](https://openairdocs.org/incident/20230205003689I), Feb 5, 2023: Bell Helicopter Textron Canada 407 (N911GX), Decatur, TX, Minor damage. The instructor under observation initiated the simulated engine failure by rolling the throttle to the idle position and announced “simulated”. The pilot under…
- [Accident 20221229018769A](https://openairdocs.org/incident/20221229018769A), Dec 29, 2022: Bell 407 (N595RL), Galliano, LA, Destroyed, 4 fatal. Aircraft departing helideck WD106, enroute back to Galliano, crashed back on helideck during take-off. Aircraft subsequently broke apart and fell into the…
- [Incident 20221120022969I](https://openairdocs.org/incident/20221120022969I), Nov 20, 2022: Bell BHT-407 (N184SF), Searcy, AR, Substantial damage. Searcy Arkansas:[privacy data omitted] Bell-407 helicopter s/n 53087. After completing patient drop-off, helicopter proceeded to Searcy re-fueler pad.…
- [Incident 20221030013419I](https://openairdocs.org/incident/20221030013419I), Oct 30, 2022: Bell 407 (N421PH), Rockdale, TX, Minor damage. [privacy data omitted]Struck power lines while landing at a parking lot for a medical emergency pick up at approximately 10PM on October 31, 2022 in Rockdale…
- [Incident 20221005010129I](https://openairdocs.org/incident/20221005010129I), Oct 5, 2022: Bell 407 (N407TH), Grand Junction, CO, Minor damage. Around 1930 on 5 October 2022, air ambulance helicopter took off from Grand Junction hospital to return to moab utha. A couple minutes after take off, a large…
- [Incident 20220706012149I](https://openairdocs.org/incident/20220706012149I), Jul 6, 2022: Bell Helicopter Textron Canada 407 (N977MS), Prescott, AZ, Minor damage. During approach to landing, the pilot attempted to approach the landing area with a strong tail wind in gusty conditions. He planned to maneuver the helicopter…
- [Accident 20220604006289A](https://openairdocs.org/incident/20220604006289A), Jun 4, 2022: Bell Helicopter Textron Canada 407 (N98ZA), Fairfield, NJ, Destroyed. On June 4, 2022 at approximately 1155 EDT, N98ZA, a Bell model 407 departed Essex County Airport, Fairfield, NJ (kcdw) bound for wall street heliport (kjrb).…
- [Accident 20220511003599A](https://openairdocs.org/incident/20220511003599A), May 11, 2022: Bell BHT-407 (N999GH), Livermore, CA, Destroyed. A Bell BHT-407 was performing human lift operations, human external cargo (hec) at the [privacy data omitted] training facility at Livermore, CA. Facility is…
- [Incident 20220119000761I](https://openairdocs.org/incident/20220119000761I), Jan 19, 2022: Bell Helicopter Textron Canada 407 (N440PH), Houma, LA, Minor damage. On the helideck of MP289C, while repositioning for an intended refuel and passenger pick up, the phi B407 tail rotor blades made contact with the main rotor…
- [Accident 20210925013101A](https://openairdocs.org/incident/20210925013101A), Sep 25, 2021: Bell 407 (N662RL), Patterson, LA, Substantial damage. Fog in the area caused the windscreen to be in need of clearing. Airman departed with poor visibility through the windscreen. This caused her to unknowingly…
- [Accident 20210621008079A](https://openairdocs.org/incident/20210621008079A), Jun 21, 2021: Bell 407 (N512TP), Tampa, FL, Substantial damage. On June 21, 2021, at 2145 EST, N512TP, a 2002 Bell 407[privacy data omitted] was conducting straight in full touchdown auto rotations at Tampa executive…
- [Incident 20210513004009I](https://openairdocs.org/incident/20210513004009I), May 13, 2021: Bell 407 (N432PH), Midlothian, TX, Minor damage. On may 13, 2021, at approximately 1600 central daylight time, a Bell 407, N432PH, bottom wire strike stuck into the ground in the grassy area along the right…
- [Incident 20201108021819I](https://openairdocs.org/incident/20201108021819I), Nov 8, 2020: Bell 407 (N139PD), Loiza, PR, Minor damage. Helicopter orbiting on VFR conditions and in contact with sju tower 4NM east. During the interview, PIC stated that during hover they experienced what appeared…
- [Accident 20200915021479A](https://openairdocs.org/incident/20200915021479A), Sep 15, 2020: Bell 407 (N489DM), Fort Worth, TX, Substantial damage. On 09/15/2020 at 1720 CDT a Bell 407 helicopter suffered a hard landing on taxiway papa at alliance airport in Fort Worth, TX during autorotation training. The…
- [Incident 20200609006139I](https://openairdocs.org/incident/20200609006139I), Jun 9, 2020: Bell Helicopter Textron Canada 407 (N445PH), Houma, LA, Minor damage. Helicopter was ferrying pipeline team approxmently 3 miles se of Houma airport when it ingested a small bird into the engine. The pilot reported a loud whine…
- [Incident 20191107016959I](https://openairdocs.org/incident/20191107016959I), Nov 7, 2019: Bell 407 (N64AE), Chesterfield, MO, Minor damage. On November 7th at approximately 8:15PM central time, helicopter N634AE, Bell BHT407-407 operating under part 91 was in level flight approximately 6 NM east of…
- [Incident 20190429003589I](https://openairdocs.org/incident/20190429003589I), Apr 29, 2019: Bell Helicopter Textron Canada 407 (N875ST), Worthington, PA, Minor damage. While enroute from venango regional airport (kfkl), returning to the primary base of operations at arnold palmer regional airport (klbe), Pennsylvania state…
- [Accident 20190303000829A](https://openairdocs.org/incident/20190303000829A), Mar 3, 2019: Bell Helicopter Textron Canada 407 (N450AM), Union Center, SD, Substantial damage. On March 03, 2019, at 00:13HRS. Local time, a Bell 407 helicopter, registered to and operated by air methods corp. was involved in an accident after landing…
- [Incident 20181014020239I](https://openairdocs.org/incident/20181014020239I), Oct 14, 2018: Bell Helicopter Textron Canada 407 (N407ZM), Craig, CO, Minor damage. Japa crew/pilot was responding to a scene call. While making the approach the aircraft struck a tree. Pilot used the medical crew to assist clearing the…
- [Incident 20180324010099I](https://openairdocs.org/incident/20180324010099I), Mar 24, 2018: Bell Helicopter Textron Canada 407 (N431P), Winchester, VA, Minor damage. On 24 March, 2018, at approximatley 2230 EDT, an air ambulance flight operated by phi air medical LLC with one patient onboard diverted to Winchester regional…
- [Incident 20180104006179I](https://openairdocs.org/incident/20180104006179I), Jan 4, 2018: Bell Helicopter Textron Canada 407 (N214AM), Norfolk, NE, Minor damage. The pilot and two medical crewmembers were on a return flight to a hospital helipad. During the approach to the helipad, the crew heard a noise outside the…
- [Accident 20171119019549A](https://openairdocs.org/incident/20171119019549A), Nov 19, 2017: Bell 407 (N620PA), Stuttgart, AR, Destroyed, 3 fatal. Helicopter impacted by numerous waterfowl at night breaking through plexiglass acrylic windshield and chin bubble.
- [Incident 20171022020199I](https://openairdocs.org/incident/20171022020199I), Oct 22, 2017: Bell 407 (N422PH), Fourchon, LA, Minor damage. Aircraft departed SS207A to return to SS207D, a satellite platform, to pick up four remaining construction crew members. Pilot initiated an approach to overfly…
- [Accident 20170124007419A](https://openairdocs.org/incident/20170124007419A), Jan 24, 2017: Bell 407 (N6040Y), Fort Worth Tx, TX, Substantial damage. During simulated fadec failure the engine and rotor entered into an overspeed condition. PIC pulled up on the collective to try to slow the rotor system…
- [Accident 20160711010979A](https://openairdocs.org/incident/20160711010979A), Jul 11, 2016: Bell Helicopter Textron Canada 407 (N427TV), Hickory, KY, Destroyed, 1 fatal. On 07/11/2016 at approximately 11:23 am CDT according to witnesses aircraft N427TV approached the tva facility yard from the south and was landing in the…
- [Accident 20151030019639A](https://openairdocs.org/incident/20151030019639A), Oct 30, 2015: Bell 407 (N420PH), Gulf Of Mexico, Substantial damage. On the morning of October 30, 2015 the pilot and aircraft began the operational day at high island a 264, an offshore platform located in the Gulf Of Mexico.…
- [Incident 20150327002869I](https://openairdocs.org/incident/20150327002869I), Mar 27, 2015: Bell Helicopter Textron Canada 407 (N803DS), Deland, FL, Minor damage. While on patrol volusia county sheriff?s department two miles south of the Deland airport, received a bird strike to the co-pilot chin bubble window which…
- [Incident 20141003017539I](https://openairdocs.org/incident/20141003017539I), Oct 3, 2014: Bell 407 (N409TD), Edgewater, NJ, Minor damage. Aircraft struck bird/s while conducting nyc sightseeing tour. Aircraft was southbound along west bank of hudson river, and upon impacting the bird,…
- [Incident 20140607009269I](https://openairdocs.org/incident/20140607009269I), Jun 7, 2014: Bell Helicopter Textron Canada 407 (N189AM), Arvada, WY, Minor damage. On 06/07/2014 on hwy 14/16, north east of Arvada WY, a bht 407 helicopter, N189AM, operated by air methods corporation, had an empty ambulance gurney roll into…
- [Incident 20140129001549I](https://openairdocs.org/incident/20140129001549I), Jan 29, 2014: Bell 407 (N6040Y), Fort Worth, TX, No damage. On 1/29/14 at approximately 0730, N6040Y with a Bell instructor pilot and pilot trainee departed alliance Fort Worth airport (kafw) to the Bell training…
- [Accident 20130102000129A](https://openairdocs.org/incident/20130102000129A), Jan 2, 2013: Bell Helicopter Textron Canada 407 (N445MT), Ventura, IA, Destroyed, 3 fatal. N445MT, a Bell 407, departed mercy medical center in mason city, Iowa at 20:45 CST. The destination was emmetsburg, Iowa to pick up a patient. The pilot and…

All 68: https://openairdocs.org/engine/rolls-royce-250-c47b/incidents.md

## Service difficulty reports (1,403, newest 50)

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

- [SDR EVCA20260915001](https://openairdocs.org/sdr/EVCA20260915001), Sep 14, 2026: DUCT. COLLAPSED. ELECTRICAL ODOR IN CABIN FOLLOWED BY AIR CONDITIONER FAILURE. THE HOSE IN BETWEEN THE EVAPORATOR AND AFT BLOWER COLLAPSED CAUSING THE AFT BLOWER CB TO POP.
- [SDR QMLA2026091320064](https://openairdocs.org/sdr/QMLA2026091320064), Sep 13, 2026: BYPASS VALVE. FAILED. UPON LANDING NOTICED COPIOUS AMOUNTS OF SMOKE BILLOWING FROM THE EXHAUST. SHUTDOWN AND NOTED THAT THE ENGINE OIL SITE GLASS WAS EMPTY. REPLACED ENGINE TURBINE A
- [SDR QMLA20260812](https://openairdocs.org/sdr/QMLA20260812), Aug 12, 2026: INDICATOR. INOPERATIVE. RECEIVED AND INSTALLED REPLACEMENT MGT INDICATOR. APPLIED GROUND POWER AND THE UNIT PASSED THE LCD TEST. AFTER ENGINE START THE MGT INDICATED ZERO. AIRCRAFT WAS
- [SDR 2026FA0000635](https://openairdocs.org/sdr/2026FA0000635), Aug 8, 2026: BLOWER MOTOR. BURNED OUT. SHORTLY AFTER DEPARTURE, TURNED ON THE BLOWER. AFTER A FEW MINUTES CREW REPORTED A BURNING RUBBER SMELL. I TURNED OFF THE BLOWER AND THE SMELL DISSIPATED. I TUR
- [SDR 2026FA0000617](https://openairdocs.org/sdr/2026FA0000617), Jul 31, 2026: BLOWER MOTOR. BURNED OUT. CREW SMELLED A BURNING OR SMOKY SMELL COMING FROM AC VENTS. TURNED OFF AC AND BLOWER MOTOR, PULLED CIRCUIT BREAKER FOR AC, OPENED VENTS AND WINDOWS. AIRCRAFT LA
- [SDR QMLA2026072520049](https://openairdocs.org/sdr/QMLA2026072520049), Jul 23, 2026: DUAL TACHOMETER. DEGRADED. NEEDLES ON DUAL TACH NOT ALIGNED WHILE RUNNING. FADEC DEGRADED/RESTART FAULT LIGHT ILLUMINATED AFTER STARTUP. REMOVED AND REPLACED DEFECTIVE DUAL TACH GAUGE.
- [SDR QMLA2026071720048](https://openairdocs.org/sdr/QMLA2026071720048), Jul 17, 2026: UNKNOWN. ODOR. ELECTRICAL ODOR NOTICED DURING FLIGHT BACK TO BASE. PERFORMED OPS CHECKS. UNABLE TO DUPLICATE SMELL. RTS
- [SDR QMLA2026071420046](https://openairdocs.org/sdr/QMLA2026071420046), Jul 13, 2026: ELEC CONNECTOR. PULLED. RESTART FAULT AND FADEC DEGRADED LIGHTS ILLUMINATED ON TAKE OFF. PULLED FAULT ADAPTOR ELEC CONNECTOR. CLEANED AND REINSTALLED. CLEARED CODE, OPS GROUND RUN GOOD
- [SDR EVCA202607011](https://openairdocs.org/sdr/EVCA202607011), Jul 1, 2026: WARNING LIGHT. FALSE ACTIVATION. DEPARTED HOSPITAL, XSMN CHIP LIGHT ILLUMINATED APPROX 2 MIN AFTER DEPARTURE. ABORTED FLIGHT, CONDUCTED PRECAUTIONARY EMERGENCY LANDING AT AIRPORT. REMOVED AND I
- [SDR EVCA20260714001](https://openairdocs.org/sdr/EVCA20260714001), Jun 21, 2026: MOTOR. FAULTED. AIRCRAFT DEPARTED THE BASE FOR A SCENE FLIGHT IN NASHVILLE ARKANSAS. APPROXIMATELY 5 MINUTES AFTER DEPARTURE CREW DESCRIBED SMELLING ELECTRICAL WIRES BURNING AL
- [SDR 2026F00115](https://openairdocs.org/sdr/2026F00115), May 20, 2026: ENGINE. SMOKE. THIS IS TO REPORT A NEW EVENT FOLLOWING SDR NO. 2120-0663. THE REPAIRED ENGINE WAS TAKEN OUT OF SERVICE FOR THE ENGINE SMOKE WHEN ENGINE TRANSITIONS FROM FLY TO
- [SDR EVCA20260511001](https://openairdocs.org/sdr/EVCA20260511001), May 8, 2026: BLOWER MOTOR. UNSERVICEABLE. SMOKE SMELL, AND VISUAL SMOKE IN CABIN. INSPECTED AIRCRAFT DETERMINED SMOKE SMELL TO BE COMING FROM AFT AC BLOWER MOTOR. REFERENCE AIR COMM ICA 407EC-200M-2.
- [SDR 2026F00095](https://openairdocs.org/sdr/2026F00095), Apr 30, 2026: HMU. FAULTED. PILOT GOT RESTART FAIL LIGHT ON CAUTION PANEL. TESTING UNIT REVEALED ERRATIC READINGS OF THE FUEL METERING VALVE POTENTIOMETER.
- [SDR 2026F00096](https://openairdocs.org/sdr/2026F00096), Apr 19, 2026: METERING VALVE. FAULTED. PILOT GOT RESTART FAULT ON CAUTION PANEL. CODES EXTRACTED WAS WFMVRTFLT INDICATING ISSUE WITH FUEL METERING VALVE POTENTIOMETER.
- [SDR 2026FA0000229](https://openairdocs.org/sdr/2026FA0000229), Mar 26, 2026: BRUSHES. WORN. FOUND ONE BRUSH ONLY OF FOUR, WORN TO METAL, CONTACTING ARMATURE. STARTER / GENERATOR, BELL P/N: 206-062-200-113, MFR P/N: 23081-018
- [SDR QMLA2026032120022](https://openairdocs.org/sdr/QMLA2026032120022), Mar 20, 2026: WIRE HARNESS. FAULTED. ON SHORT FINAL THE FADEC CHANNEL FAIL CAUTION LIGHT ILLUMINATED; IT WAS FOLLOWED BY THE CHECK INSTRUMENT WARNING LIGHT A SECOND LATER, THEN FINALLY THE FADEC MA
- [SDR QMLA2026031920020](https://openairdocs.org/sdr/QMLA2026031920020), Mar 19, 2026: SOLENOID VALVE. FAILED. HYDRAULIC SYSTEM FAIL CAS ILLUMINATED ON TOUCHDOWN.
- [SDR QMLA2026011120002](https://openairdocs.org/sdr/QMLA2026011120002), Jan 11, 2026: UNKNOWN. ODOR. MED CREW REPORTS A FUEL ODOR WHILE IN FLIGHT. PERFORMED VISUAL INSPECTION OF ALL VIABLE FUEL LINES, FUEL SUMPS, FUEL NOZZLE, AND FUEL FILTERS, IAW AMM DMC 407-A
- [SDR QMLA2025112820118](https://openairdocs.org/sdr/QMLA2025112820118), Nov 28, 2025: ENGINE. MAKING METAL. AIRCRAFT WAS APPROACHING STELLAR AIRPORT IN RENO, NV FOR FUEL WHEN THE ENGINE CHIP LIGHT CAME ON. PILOT LANDED AT THE AIRPORT AND CALLED MECHANICS. MECHANICS PU
- [SDR QMLA2025102320108](https://openairdocs.org/sdr/QMLA2025102320108), Oct 22, 2025: OIL FILTER. FAILED. ON CLIMB OUT, ENGINE OIL FILTER CAUTION LIGHT ILLUMINATED. PROCEDURE IS LAND AS SOON AS PRACTICAL. I WAS OVER A NUMBER OF BUILDING AND ALREADY HEADED FOR THE AI
- [SDR QMLA2025102120106](https://openairdocs.org/sdr/QMLA2025102120106), Oct 20, 2025: POTENTIOMETER. UNSERVICEABLE. A FADEC DEGRADE CAUTION LIGHT ILLUMINATED IN-FLT ENROUTE BACK TO HOMEBASE. AFTER NOTIFYING THE CREW OF THE EMERGENCY EVENT THAT OCCURRED, EXECUTED EMERGENCY PRO
- [SDR QMLA2025101420104](https://openairdocs.org/sdr/QMLA2025101420104), Oct 14, 2025: ENGINE. OVERSPEED. ENGINE OVERSPEED DURING FLIGHT.
- [SDR QMLA2025101120101](https://openairdocs.org/sdr/QMLA2025101120101), Oct 8, 2025: ENGINE. MAKING METAL. ENGINE CHIP LIGHT ILLUMINATED IN FLIGHT. UPON INSPECTION, ENGINE WAS FOUND TO BE MAKING METAL. AIRCRAFT CURRENTLY OOS,
- [SDR 2026FA0000095](https://openairdocs.org/sdr/2026FA0000095), Aug 7, 2025: FILTER. MISMANUFACTURED. PERFORMING TRANSMISSION OIL AND FILTER CHANGE, MECHANIC NOTED THAT NEW OIL FILTER WOULD NOT INSTALL ON THE FILTER BOSS. WENT THROUGH INVENTORY AND FOUND THAT A 
- [SDR 2026F00041](https://openairdocs.org/sdr/2026F00041), Jul 23, 2025: ENGINE. DAMAGED. UNKNOWN INTERNAL ENGINE COMPONENT CAUSING BURNING OF OIL AFTER ENGINE OVERHAUL AND REPLACEMENT OF ALL 4 TURBINE WHEELS. FIRST OCCURRENCE RECORDED AFTER SMOKE WA
- [SDR EVCA20250530001](https://openairdocs.org/sdr/EVCA20250530001), May 28, 2025: BLADE. DAMAGED. CRACK FOUND 3/8" FROM THE AFT BLADE BOLE AREA IN NON-REPAIRABLE AREA OF MAIN ROTOR BLADE.
- [SDR QMLA202504282005](https://openairdocs.org/sdr/QMLA202504282005), Apr 27, 2025: SEAL. LEAKING. CREW REPORTED A HAZE IN THE PASSENGER COMPARTMENT WHEN DEFROSTER SYSTEM WAS IN USE, DURING PREFLIGHT OIL WAS FOUND STREAKING OUT OF BLEED VALVE OUTLET/ EXHAUST 
- [SDR QMLA2025040920048](https://openairdocs.org/sdr/QMLA2025040920048), Apr 9, 2025: OIL SYSTEM. LEAKING. EXCESS OIL OBSERVED DRIPPING FROM AFT-MOST BOTTOM DRAIN TUBE.
- [SDR QMLA2025032720041](https://openairdocs.org/sdr/QMLA2025032720041), Mar 27, 2025: ROTOR HEAD. CRACKED. CRACK FOUND ON MAIN ROTOR HUB BEARING ADAPTER ASSY ON DIAMOND BLADE. REPLACED MRH ASSY.
- [SDR EVCA033025](https://openairdocs.org/sdr/EVCA033025), Mar 27, 2025: FUEL. ODOR. SMELLING FUEL ON TAKEOFF.
- [SDR EVCA2025013000002](https://openairdocs.org/sdr/EVCA2025013000002), Jan 30, 2025: ENGINE. FOD. SMOKE FROM HEATING SYSTEM WHEN HEAT IS ON. SMOKE CLEARS WHEN TURNED OFF. UPON INSPECTION OF ENGINE FOR SMOKE, FOUND ENGINE HAS FOD DAMAGE.
- [SDR 2VKA2025020553456](https://openairdocs.org/sdr/2VKA2025020553456), Jan 28, 2025: WASHER. CRACKED. WHILE CHANGING THE TRANSMISSION THE TECHNICIAN DISCOVERED ONE WASHER PN:140-007-25S22E6 CRACKED.
- [SDR EVCA2025011500001](https://openairdocs.org/sdr/EVCA2025011500001), Jan 14, 2025: BEARING. COKED. EXCESSIVE SMOKE COMING FROM ENGINE AT IDLE. FOUND HEAVY COKING ON THE OIL STRUT AND POOR DRAIN BACK FROM 6/7 BEARINGS. ENGINE WAS INSTALLED 53.9 HRS PRIOR TO EV
- [SDR 8LFA202501154001](https://openairdocs.org/sdr/8LFA202501154001), Jan 14, 2025: BEARING SEAL. LEAKING. IN FLIGHT, SMOKE ACCUMULATED IN THE CABIN COMING FROM THE HEATING SYSTEM. PILOT TURNED OFF THE HEATING SYSTEM AND SMOKE DISSIPATED. UPON LANDING, IT WAS FOUND #
- [SDR H44A202501070001](https://openairdocs.org/sdr/H44A202501070001), Dec 17, 2024: SEAL. FAILED. PILOT REPORTED INCREASE IN ENGINE OIL PRESSURE AND DECREASE IN TRANSMISSION PRESSURE. UPON FURTHER INSPECTION IT WAS DISCOVERED THAT THE NEWLY INSTALLED PTO SEA
- [SDR HDNA2024120200936](https://openairdocs.org/sdr/HDNA2024120200936), Dec 2, 2024: DISPLAY. BURNED OUT. PRIMARY FLIGHT DISPLAY HAD INTERNAL FAILURE RESULTING IN SMOKE COMING FROM SD CARD SLOTS. AIRCRAFT LANDED WITH NO OTHER FAULTS.
- [SDR QMLA2024112120145](https://openairdocs.org/sdr/QMLA2024112120145), Nov 21, 2024: OXYGEN BOTTLE. CRACKED. AN OVERHAULED GASEOUS MEDICAL O2 BOTTLE WAS FOUND WITH MANUFACTURING DEFECT OR CRACK AT NECK/REGULATOR FITTING. FOUND DURING LEAK CHECK AFTER INSTALLATION.
- [SDR QMLA2024102820139](https://openairdocs.org/sdr/QMLA2024102820139), Oct 25, 2024: ENGINE. MAKING METAL. ENGINE CHIP LIGHT IN-FLIGHT I ACCEPTED A PATIENT FLIGHT REQUEST FOR AN INTERFACILITY TRANSFER FROM PINE RIDGE HOSPITAL TO MONUMENT HEALTH IN RAPID CITY, SD. FLI
- [SDR QMLA2024102820140](https://openairdocs.org/sdr/QMLA2024102820140), Oct 25, 2024: UNKNOWN. FUMES. FUMES IN CABIN NOTED AND FLIGHT ABORTED RTB, ADJUSTED A/C DUCT ON AFT BLOWER MOTOR. OPS CHECKED GOOD. ALL MAINTENANCE COMPLETED.
- [SDR QMLA2024102120136](https://openairdocs.org/sdr/QMLA2024102120136), Oct 21, 2024: PUMP. FAULTED. PILOT REPORTED HYDRAULIC WHINE/GRIND ON LANDING 10/19/2024 @ 0930. MECHANIC PERFORMED INSPECTION OF HYDRAULIC SYSTEM, GROUND RUN, AND TEST FLIGHT, NO ABNORMAL N
- [SDR QMLA2024101120131](https://openairdocs.org/sdr/QMLA2024101120131), Oct 10, 2024: UNKNOWN. ODOR. SMELL OF ELECTRICAL BURNING IN FLIGHT AFT CABIN, NOTICED BY AIRCREW. INSPECTED AFT BAGGAGE COMPARTMENT, UPPER AVIONICS BAY INCLUDING WIRING AND RELAYS. GROUND R
- [SDR ZD4R202410040001](https://openairdocs.org/sdr/ZD4R202410040001), Oct 4, 2024: SHAFT. BROKEN. DISASSEMBLED GEARBOX AND FOUND 2 BROKEN TEETH ON TORQUEMETER GEARSHAFT. GEAR TEETH WERE LOCATED AT BOTTOM OF GEARBOX. MINOR METAL DEBRIS FOUND ON MAGNETIC CHIP 
- [SDR QMLA2024100120126](https://openairdocs.org/sdr/QMLA2024100120126), Sep 27, 2024: OIL SYSTEM. OVERTEMP. ENTERING CRUISE FLIGHT AFTER TAKEOFF, EOT TURNED RED AND INDICATED 109C. INITIATED RETURN FOR LANDING. EOT SHOWED 135C ON LANDING, BUT LOWERED DURING 2 MINUTE S
- [SDR QMLA2024092020121](https://openairdocs.org/sdr/QMLA2024092020121), Sep 20, 2024: SEALANT. DAMAGED. FUEL SMELL IN CABIN BY MED CREW, INSPECTED FOR FUEL LEAKS, NONE FOUND. REAPPLIED SEALANT TO PREVENT FUEL VENT FROM ENTERING CABIN. THIS AIRCRAFT HAS BEEN RETURN
- [SDR QMLA2024091820117](https://openairdocs.org/sdr/QMLA2024091820117), Sep 17, 2024: UNKNOWN. ODOR. DURING FLIGHT, I HEARD A POPPING SOUND AND SAW A FLASH ON THE LOWER PORTION OF THE CENTER CONSOLE FOLLOWED BY AN ELECTRICAL BURN SMELL. I IMMEDIATELY CHANGED MY
- [SDR HDNA20240916001](https://openairdocs.org/sdr/HDNA20240916001), Sep 13, 2024: UNKNOWN. ODOR. UPON INITIAL DEPARTURE FROM BASE PIC REPORTED THAT THE MEDICAL CREW NOTED STRONG SMELL OF FUEL IN THE CABIN. FLIGHT WAS ABORTED AND RETURNED TO BASE. RESPONDING
- [SDR EVCA202408250001](https://openairdocs.org/sdr/EVCA202408250001), Aug 25, 2024: DRAIN. CLOGGED. CREW NOTICED FUEL SMELL IN THE BACK OF THE AIRCRAFT DURING FLIGHT. FINDINGS: NO VISIBLE FUEL LEAKS FOUND IN CABIN, FUEL RESIDUE FOUND IN AFT FUSELAGE BOAT TAIL.
- [SDR QMLA2024081920102](https://openairdocs.org/sdr/QMLA2024081920102), Aug 17, 2024: BLOWER MOTOR. FAILED. CREW SMELLED BURNING ELECTRICAL OR BURNING RUBBER COMING OUT OF THE AIR CONDITION VENTS IN THE AFT PASSENGER COMPARTMENT. BURNING SMELL DISSIPATED WHEN AIR COND
- [SDR QMLA2024081920103](https://openairdocs.org/sdr/QMLA2024081920103), Aug 17, 2024: BLOWER MOTOR. FAILED. BURNING SMELL IN AFT CABIN WITH AIR CONDITIONING ON.
- [SDR QMLA2024081520099](https://openairdocs.org/sdr/QMLA2024081520099), Aug 13, 2024: UNKNOWN. FUMES. DURING CRUISE FLIGHT, NURSE SMELLED ELECTRICAL BURNING FUMES COMING FROM AIR CONDITIONER GASPER. RETURNED TO THE NEAREST SAFE LANDING AREA WHICH WAS BASE AND SH

All 1,403: https://openairdocs.org/engine/rolls-royce-250-c47b/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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