# Service difficulty reports: Bell 427

A list on [Bell 427](https://openairdocs.org/model/bell-427.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 77 reports

- [SDR CA190506001](https://openairdocs.org/sdr/CA190506001.md): Skid · fractured · May 1, 2019 · Bell 427 · Wheel/Ski/Float
  > (CAN) IT WAS REPORTED TO BELL:AFTER NORMAL FLYING WHEN THE HELICOPTER WAS BEING TOWED INSIDE THE HANGAR THE RH SKID TUBE FRACTURED JUST AFT OF THE INSERT ASSY 206-053-121-001. (TC# 20190506001)
- [SDR CA160119005](https://openairdocs.org/sdr/CA160119005.md): Shroud · cracked · Oct 30, 2015 · Bell 427 · Aircraft Fuel Distribution System
  > (CAN) THE FOLLOWING HAS BEEN REPORTED TO MFG: IN-FLIGHT SHUTDOWN OF A ENGINE. THE ACFT MADE A SAFE LANDING ON THE RUNWAY AT THE LOCAL AIRPORT AND NO ADDITIONAL DAMAGE WAS DONE TO THE ACFT OR PERSONNEL. FROM WHAT THEY HAVE SO FAR DETERMINED, THE LOWER SHROUD
- [SDR CA160111006](https://openairdocs.org/sdr/CA160111006.md): Fuel Sys · malfunctioned · Oct 30, 2015 · Bell 427 · Fuel Controlling System
  > (CAN) AT ALTITUDE OF 500FT, SPEED 120KTS AND TORQUE 85 PERCENT THE PILOT EXPERIENCED A YAW TO THE RT. SAW AN INDICATION OF NR 1 ENGINE FAILED. FOLLOWED THE EMERGENCY PROCEDURE, FLEW ABOUT 13 MINUTES WITH 1 OPERATING ENGINE, ENG 2, AND LANDED SAFELY AT THE NE
- [SDR CA151102009](https://openairdocs.org/sdr/CA151102009.md): Tube · damaged · Oct 30, 2015 · Bell 427 · Engine Fuel Distribution
  > (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 LOWER SHROUD ON THE FMM CRACKED AROUND 1 OF THE HIGH PRESSURE FUEL FITTINGS WHICH GOES INTO THE BOT
- [SDR CA150324009](https://openairdocs.org/sdr/CA150324009.md): Structure · cracked · Mar 22, 2015 · Bell 427 · Rotorcraft Tail Boom
  > (CAN) VERTICAL FIN CRACKED. THE CRACK APPEARS TO HAVE ORIGINATED AT THE UPPER AFT ATTACH POINT. IT WAS DISCOVERED ON A DAILY INSPECTION.
- [SDR CA150324006](https://openairdocs.org/sdr/CA150324006.md): Case · cracked · Mar 6, 2015 · Bell 427 · Main Rotor Gearbox
  > (CAN) THE TRANSMISSION CASE HAD AN OIL LEAK FOUND AROUND LT INPUT QUILL AREA. FOUND THE OIL LEAK FROM A CRACK IN THE RADII TRANSITION AREA OF THE CASE BETWEEN THE LT INPUT AND PORTION OF THE LOWER CASE.
- [SDR CA150212005](https://openairdocs.org/sdr/CA150212005.md): Frame · cracked · Feb 4, 2015 · Bell 427 · Fuselage Main, Frame
  > (CAN) FRAME FOUND CRACKED.
- [SDR CA131031008](https://openairdocs.org/sdr/CA131031008.md): Case · cracked · Oct 23, 2013 · Bell 427 · Main Rotor Gearbox
  > (CAN) AN OIL LEAK HAD DEVELOPED ON THE LT SIDE OF THE UPPER TRANSMISSION DECK. IT WAS OBSERVED THAT THE OIL LEAK WAS ORIGINATING FROM A CRACK IN THE RADII TRANSITION AREA OF THE CASE BETWEEN THE LT MAIN INPUT AND PORTION OF THE LOWER CASE.
- [SDR AC2A201304150001](https://openairdocs.org/sdr/AC2A201304150001.md): Brake · false indication · Apr 8, 2013 · N427HV · Bell 427 · Main Rotor Brake
  > ROTOR BRAKE CAS MESSAGE APPEARED SHORTLY AFTER TAKEOFF. FOLLOWED EMERGENCY PROCEDURES AND RETURNED TO DEPARTURE. TESTED SWITCHES IN CALIPER AND FOUND THEM TO BE SERVICEABLE. RECONNECTED CONNECTOR PLUGS AND PERFORMED AN OPS CHECK ON THE ROTOR BRAKE SYS AND F
- [SDR CA120222001](https://openairdocs.org/sdr/CA120222001.md): Longeron · cracked · Feb 19, 2012 · Bell 427 · Fuselage Main, Longeron/Stringer
  > (CAN) DURING THE ROUTINE 150 HOUR INSPECTION, A CRACK WAS FOUND IN THE UPPER LT LONGERON, AIRFRAME SIDE, THAT IS THE ATTACH POINT FOR THE TAILBOOM INTERCOSTAL.
- [SDR AC2A7HV07162011](https://openairdocs.org/sdr/AC2A7HV07162011.md): Cable · seized · Jul 16, 2011 · N427HV · Bell 427 · Emergency Flotation Section
  > FLOAT DEPLOYMENT CABLE SEIZED TO SHEATH AND END FITTING SEPARATED AT CRIMP INSIDE FITTING PROTECTIVE BOOT.
- [SDR CA110308009](https://openairdocs.org/sdr/CA110308009.md): Extinguisher · contaminated · Mar 1, 2011 · Bell 427 · Fire Bottle, Fixed
  > (CAN) DURING A PREFLIGHT INSPECTION, THE ENGINE FIRE EXTINGUISHER WAS FOUND WITH ZERO PRESSURE. DURING REMOVAL OF THE EXTINGUISHER, WATER WAS FOUND IN THE MANIFOLD.
- [SDR AC2A7HV1152011](https://openairdocs.org/sdr/AC2A7HV1152011.md): Pressure Switch · inoperative · Jan 15, 2011 · N427HV · Bell 427 · Fuel Indicating System
  > NR1 FUEL PRESS WARNING (RED) LIGHT ILLUMINATED DURING TAKEOFF.
- [SDR AC2A685K001](https://openairdocs.org/sdr/AC2A685K001.md): Warning Light · illuminated · Dec 7, 2010 · N427HV · Bell 427 · Main Rotor Gearbox
  > HAD JUST LEFT, ENROUTE, FOR AN ACFT SWAP WHEN A TRANSMISSION CHIP LT LIGHT ILLUMINATED. FOLLOWED EMERGENCY PROCEDURES AND LANDED AS SOON AS POSSIBLE AT SHIPPING PAD.
- [SDR CA101129004](https://openairdocs.org/sdr/CA101129004.md): Pin · migrated · Nov 17, 2010 · Bell 427 · Power Lever
  > (CAN) BELL HELICOPTER WAS NOTIFIED A MS16555-321 PIN MIGRATED OUT OF PINION SHAFT ASSY LOCKING NR 2 ENGINE THROTTLE RESULTING IN BEING UNABLE TO SHUT DOWN ENGINES WITH THROTTLE.
- [SDR CA101105004](https://openairdocs.org/sdr/CA101105004.md): Skin · damaged · Oct 26, 2010 · Bell 427 · Rotorcraft Tail Boom
  > (CAN) VOIDS EXCEEDING ALLOWABLE LIMITS WERE DISCOVERED IN TAILBOOM UPPER SKIN RADIUS DURING DESTRUCTIVE TEST INSPECTION.
- [SDR CA101105003](https://openairdocs.org/sdr/CA101105003.md): Terminal Block · damaged · Oct 18, 2010 · Bell 427 · Electrical Power System Wiring
  > (CAN) DURING INITIAL GROUND RUN, WHEN TRYING TO CROSS START THE NR 1 ENGINE (WITH NR 2 RUNNING), THE "BUS INTERCONNECT" RELAY OPENED IN THE MIDDLE OF THE START, THUS NO LONGER SUPPLYING ELECTRICAL POWER TO NR 1 ENGINE STARTER GEN PROBLEM RELATED TO UNLOCKED EL
- [SDR CA090901007](https://openairdocs.org/sdr/CA090901007.md): Bolt · broken · Aug 12, 2009 · Bell 427 · Vertical Stabilizer
  > ONE OF THE 4 VERTICAL FIN ATTACHMENT (NAS6604-30) BOLTS FOUND BROKEN (BOTTOM AFT BOLT). REMAINING 3 BOLTS WERE NOT FINGER LOOSE, BUT WERE NOT AT MAXIMUM TORQUE. THE NUTS WERE NOT BOTTOMED ON THE SHANK OF THE BOLTS. FRETTING DAMAGE TO TAIL FIN FLANGE BUSHINGS
- [SDR AC2A2009081282853](https://openairdocs.org/sdr/AC2A2009081282853.md): Bolt · broken · Aug 12, 2009 · N427MH · Bell 427 · Vertical Stabilizer
  > DURING PRE-FLIGHT INSP, PIC FOUND THE VERTICAL STABILIZER TO HAVE UP AND DOWN PLAY.
- [SDR AC2A2009061182036](https://openairdocs.org/sdr/AC2A2009061182036.md): Transmission · contaminated · Jun 11, 2009 · N427GT · Bell 427 · Main Rotor Gearbox
  > WHILE IN FLIGHT THE TRANSMISSION CHIP RT CAUTION LIGHT CAME ON. PILOT WAS ON APPROACH TO LAND AT MO916, ACFT HAD JUST BEEN STARTED AND WAS 2 MINUTES INTO THE FLIGHT, APPX SPEED WAS 80 KNOTS AT 400 FT. AFTER LANDING THE ACFT WAS SHUTDOWN AND MX WAS CONTACTED.
- [SDR CA090121007](https://openairdocs.org/sdr/CA090121007.md): Beam · chafed · Jan 9, 2009 · Bell 427 · Nacelle/Pylon, Main Frame
  > DURING ANNUAL INSPECTION, FRETTING RESIDUE WAS NOTED ON BOTTOM OF LEFT HAND PYLON BEAM ASSEMBLY 427-010-201-107. FURTHER INVESTIGATION AND SUBSEQUENT REMOVAL OF THE BEAM REVEALED CHAFING DAMAGE TO PYLON BEAM 427-010-201-107, ADAPTER 427-010-206-101 AND HOSE 4
- [SDR CA090107013](https://openairdocs.org/sdr/CA090107013.md): Bracket · broken · Jan 2, 2009 · Bell 427 · Tail Rotor Drive Shaft
  > DURING A DAILY INSPECTION, THE AFT FAN SHAFT HANGAR BEARING SUPPORT BRACKET WAS FOUND TO BE BROKEN. THERE WAS NO DAMAGE TO THE SURROUNDING AREA, AND INSPECTION OF THE FORWARD BRACKET FOUND NO DAMAGE TO IT. A ONE TIME INSPECTION OF THE WHOLE AIRCRAFT WAS ALSO
- [SDR AC2A2009010180117](https://openairdocs.org/sdr/AC2A2009010180117.md): Switch · failed · Jan 1, 2009 · N427CK · Bell 427 · Engine Indicating System
  > TRIPLE SWITCH FAILED.
- [SDR CA080710002](https://openairdocs.org/sdr/CA080710002.md): Cable · broken · Jun 18, 2008 · Bell 427 · Cargo Compartments
  > (CAN) MANUAL RELEASE CABLE BROKE AT CARGO HOOK FITTING CAUSING HOOK TO RELEASE INFLIGHT.
- [SDR CA080528007](https://openairdocs.org/sdr/CA080528007.md): Shroud · chafed · May 25, 2008 · Bell 427 · Standard Practices/Structures
  > (CAN) OPERATOR REPORTED A MAIN ROTOR TRANSMISSION OIL LINE FAILURE. INSP REVEALED CHAFING DAMAGE TO THE OIL-LINE SHROUD ASSY FROM THE FIREWALL CLOSEOUT METAL EDGE.
- [SDR AC2A119527](https://openairdocs.org/sdr/AC2A119527.md): Engine · making metal · Apr 15, 2008 · N427GT · Bell 427 · Engine (Turbine/Turboprop)
  > MAKING METAL, (2) CHIP LIGHTS IN 80 HOURS.
- [SDR AC2A119028](https://openairdocs.org/sdr/AC2A119028.md): Support Fitting · damaged · Feb 23, 2008 · N427CU · Bell 427 · Rotorcraft Tail Boom
  > DURING A DAILY INSP SOME WORKING RIVETS WERE FOUND ALONG WITH SHEARED RIVET HEADS AT THE TAILBOOM WHERE THE TAIL ROTOR GEARBOX SUPPORT FITTING ATTACHES.
- [SDR AC2A118969](https://openairdocs.org/sdr/AC2A118969.md): Skin · chafed · Feb 23, 2008 · N427CU · Bell 427 · Rotorcraft Tail Boom
  > AIRCRAFT WAS BROUGHT IN FROM OFFSHORE. DURING A DAILY INSPECTION SOME WORKING AND MISSING RIVETS WERE FOUND ON THE TAIL BOOM. A THROUGH INSPECTION WAS PERFORMED ON THE TAIL BOOM ATTACHMENT FITTING. TAIL ROTOR DRIVE TRAIN, TAIL ROTOR GEAR BOX CASTING, TAIL ROT
- [SDR CA080205004](https://openairdocs.org/sdr/CA080205004.md): Support · cracked · Feb 1, 2008 · Bell 427 · Rotorcraft Tail Boom
  > (CAN) T/R GEARBOX SUPPORT CAST SURFACE FOUND CRACKED AT LWR FWD LEG, ATTACHMENT POINT FOR THE VERTICAL FIN. (TC NR 20080205004)
- [SDR AC2A117357](https://openairdocs.org/sdr/AC2A117357.md): Starter Gen · failed · Sep 15, 2007 · N427CK · Bell 427 · Starter-Generator
  > STARTER GENERATOR WOULD NOT ENGAGE. WENT OFFSHORE TO REPLACE STARTER. ONCE OFFSHORE, ENGAGED STARTER SWITCH 3 TIMES AND THE STARTER WORKED AS ADVERTISED. ELECTED TO REPLACE THE STARTER TO PREVENT ANY FURTHER DELAYS AND THE STARTER RAN ONLY 62.5 HOURS, REMAI
- [SDR AC2A117321](https://openairdocs.org/sdr/AC2A117321.md): Transmission · making metal · Sep 10, 2007 · N427GT · Bell 427 · Main Rotor Gearbox
  > TRANSMISSION CHIP LIGHT ILLUMINATED. 1 VERY SMALL FLAKE AND 1 SMALL HAIR SLIVER ON LT TRANSMISSION CHIP DETECTOR. CHECKED AND CLEANED PLUG, ALSO CHECKED THE OTHER (2) CHIP DETECTORS AND FOUND TO BE CLEAN. PENALTY RAN AIRCRAFT FOR 1 HOUR WITH NO FURTHER CHIP LI
- [SDR AC2A115478](https://openairdocs.org/sdr/AC2A115478.md): Fan · damaged · May 14, 2007 · N427CK · Bell 427 · Air Distribution Fan
  > FAN BLADES DISENGAGED FROM THE FAN DRIVE AND DAMAGED THE HUB AND BLADES.
- [SDR AC2A115466](https://openairdocs.org/sdr/AC2A115466.md): Skid Shoe · severed · May 14, 2007 · N427CK · Bell 427 · Main Landing Gear
  > MOUNTING EARS ARE RIPPED OUT.
- [SDR CA070502006](https://openairdocs.org/sdr/CA070502006.md): Case · cracked · Apr 26, 2007 · Bell 427 · Main Rotor Gearbox
  > (CAN) ON INVESTIGATING AN OIL LEAKAGE, A CRACK WAS FOUND ON THE TRANSMISSION LOWER CASE (SIMILAR LOCATION AS SDR 20070216006) (TC NR 20070502006)
- [SDR AC2A115477](https://openairdocs.org/sdr/AC2A115477.md): Motor · damaged · Apr 15, 2007 · N427CK · Bell 427 · Air Distribution Fan
  > FAN DISENGAGED FROM FAN MOTOR AND DAMAGED THE FAN HUB.
- [SDR CA070216006](https://openairdocs.org/sdr/CA070216006.md): Gearbox · cracked · Feb 7, 2007 · Bell 427 · Main Rotor Gearbox
  > (CAN) FOUND A CRACK IN MAIN ROTOR TRANSMISSION, ON THE LT SIDE INPUT SHAFT. OIL STARTED TO SIP OUT OF THE TRANSMISSION. (TC NR 20070216006)
- [SDR AC2A113940](https://openairdocs.org/sdr/AC2A113940.md): Transmission · making metal · Jan 27, 2007 · N427CU · Bell 427 · Main Rotor Gearbox
  > TRANSMISSION CHIP LIGHT. CALLED MECHANIC OUT TO AIRCRAFT TO CHECK AND VERIFY TRANSMISSION CHIP PLUG CONTAMINATION. MECHANIC FOUND THIN HAIRLIKE SLIVER OF METAL APPROX..2500 INCH LONG ACROSS CONTACTS OF PLUG. CLEANED OF CHIP DETECTOR AND REINSTALLED. NO FURTH
- [SDR AC2A113661](https://openairdocs.org/sdr/AC2A113661.md): Bolt · sheared · Jan 17, 2007 · N427CU · Bell 427 · Horizontal Stabilizer Structure
  > END OF BOLT SHEARED OFF WITH NUT.
- [SDR CA070209008](https://openairdocs.org/sdr/CA070209008.md): Engine · overspeed · Jan 11, 2007 · Bell 427 · Engine (Turbine/Turboprop)
  > (CAN) THE ENGINE WENT TO AN OVERSPEED CONDITION ON TAKE-OFF AND THE TAKE-OFF WAS ABORTED. MFG WILL INVESTIGATE THE INCIDENT AND ADVISE OF ROOT CAUSE ONCE ESTABLISHED. (TC NR 20070209008)
- [SDR CA061218016](https://openairdocs.org/sdr/CA061218016.md): Hose · chafed · Nov 8, 2006 · Bell 427 · Hydraulic System, Main
  > (CAN) HOSE ASSEMBLY 70-060T000X186 (18.750 INCHES LONG) RUBS AGAINST SUPPORT 427-001-005 WHEN THE COLLECTIVE STICK IS DOWN AND THE CYCLIC STICK IS CENTER AND FULL FORWARD. (TC NR 20061218016)
- [SDR AC2A111915](https://openairdocs.org/sdr/AC2A111915.md): Mast · worn · Nov 5, 2006 · N427CK · Bell 427 · Main Rotor Mast/Swashplate
  > DURING MAST RETORQUE, FOUND MAST SPLINES WORN, REPLACED MAST.
- [SDR AC2A111918](https://openairdocs.org/sdr/AC2A111918.md): Bearing · delaminated · Nov 5, 2006 · N427CK · Bell 427 · Main Rotor Head
  > BEARING FOUND DELAMINATED, REPLACED BEARING.
- [SDR AC2A111917](https://openairdocs.org/sdr/AC2A111917.md): Bearing · delaminated · Nov 5, 2006 · N427CK · Bell 427 · Main Rotor Head
  > BEARING FOUND DELAMINATED, REPLACED BEARING.
- [SDR AC2A110989](https://openairdocs.org/sdr/AC2A110989.md): Gearbox · loose · Aug 16, 2006 · N427CU · Bell 427 · Tail Rotor Gearbox
  > DURING 50 HOUR INSPECTION, FOUND TAIL ROTOR GEAR BOX LOOSE ON ITS MOUNTING STUDS. INSPECTED TAILBOOM MOUNTING PADS VIA DIE PENETRANT, NO DEFECTS FOUND. INSTALLED SERVICABLE TAIL ROTOR GEAR BOX ASSEMBLY.
- [SDR AC2A110528](https://openairdocs.org/sdr/AC2A110528.md): Bearing · delaminated · Jul 27, 2006 · N427CU · Bell 427 · Main Rotor Head
  > FOUND DELAMINATED / REPLACED BEARING.
- [SDR AC2A110524](https://openairdocs.org/sdr/AC2A110524.md): Bearing · delaminated · Jul 27, 2006 · N427CU · Bell 427 · Main Rotor Head
  > FOUND DELAMINATED / REPLACED BEARING
- [SDR CA060608004](https://openairdocs.org/sdr/CA060608004.md): Bolt · loose · May 11, 2006 · Bell 427 · Rotorcraft Tail Boom
  > THE VERTICAL FIN WAS FOUND LOOSE DURING A SCHEDULE INSPECTION. ONE ATTACHMENT BOLT WAS SHANKED-OUT. ANOTHER BOLT WAS LOOSE BUT NOT SHANKED. NO OTHER DAMAGE WAS REPORTED.
- [SDR CA060403002](https://openairdocs.org/sdr/CA060403002.md): Wire Strike · damaged · Mar 30, 2006 · Bell 427 · Main Rotor Blades
  > DURING COOL DOWN AT IDLE RPM CYCLIC CONTROL STICK WAS MOVED FORWARD AND MAIN ROTOR BLADE (QTY 2) CONTACTED THE UPPER CUTTER OF THE WIRE STIKE PROTECTION SYSTEM.
- [SDR AC2A108152](https://openairdocs.org/sdr/AC2A108152.md): Relay · inoperative · Feb 22, 2006 · N427CU · Bell 427 · Electrical Power System Wiring
  > BATTERY RELAY NOT WORKING / RELACED BATTERY RELAY.
- [SDR CA060224002](https://openairdocs.org/sdr/CA060224002.md): Cyclic Control · obstructed · Feb 17, 2006 · Bell 427 · Rotorcraft Flight Control
  > CYCLIC STICK FWD MOVEMENT RESTRICTED BY T/R PEDAL STOP MECHANISM CABLE. T/R PEDAL STOP MECHANISM CABLE BRACKET 427-001-296-103 FOUND MISLOCATED.

Next page: https://openairdocs.org/model/bell-427/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE aircraft_model_key = '427'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/bell-427/reports

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