407 Information Letters


File Name
Date Posted
Description
  IL_407-16-114_.pdf 08-Dec-16 COMPONENT INTERCHANGEABILITY
  IL_407-16-113.pdf 26-Aug-16 407GX/407GXP 2015 MAGNETIC FIELD MODEL UPDATE
  IL_407-16-111.pdf 04-May-16 DISCONTINUATION OF SUPPORT FOR ECU SOFTWARE VERSIONS 5.202, 5.356, AND 5.358
  IL_407-16-112.pdf 12-Apr-16 407GX/407GXP SOFTWARE 006-B1237-10 NUISANCE ISSUES
  IL_407-15-110-RA.pdf 03-Feb-16 250-C47B AND 250-C47B/8 ENGINE PRODUCT IMPROVEMENTS
  IL_407-15-110.pdf 11-Dec-15 250-C47B AND 250-C47B/8 ENGINE PRODUCT IMPROVEMENTS
  IL_407-15-109.pdf 15-Sep-15 ALTERNATE MEANS OF COMPLIANCE (AMOC) FOR FAA AD 2015-17-02 DATED SEPTEMBER 24, 2015
  IL_407-14-106-RA.pdf 08-Sep-15 BELL 407 DRIVESHAFT MOUNTED PULLEY AND DRIVE RING INSTALLATION INSPECTION
  IL_407-15-108-RA.pdf 28-Aug-15 ENGINE FOREIGN OBJECT DAMAGE (FOD), PREVENTION OF
  IL_407-15-108.pdf 01-May-15 ENGINE FOREIGN OBJECT DAMAGE (FOD), PREVENTION OF
  IL_407-15-107.pdf 27-Jan-15 MANDATORY INSPECTION AND MODIFICATION OF NOSE CONSOLE AT G1 MOUNT FASTENERS.
  IL_407-14-106.pdf 22-Aug-14 DRIVESHAFT MOUNTED PULLEY AND DRIVE RING INSTALLATION, INSPECTION.
  IL_407-14-105-RA.pdf 12-Jun-14 GARMIN G1000H SOFTWARE P/N 006-B1237-08, INTRODUCTION.
  IL_407-14-105.pdf 11-Mar-14 GARMIN G1000H SOFTWARE P/N 006-B1237-08, INTRODUCTION.
  IL_407-13-104.pdf 19-Dec-13 POWER ASSURANCE CHECK (PAC) LOGGING, DUPLICATION OF.
  IL_407-10-97-RA.pdf 11-Apr-13 MAINTENANCE MANUAL (BHT-407-MM-1) CHAPTER 4 AND 5, REVISION OF.
  IL_407-12-103.pdf 17-May-12 ENGINE, COMPRESSOR ASSSEMBLY - REPLACEMENT OF NO.2 BEARING
  IL_407-12-102.pdf 05-Mar-12 SEAT BELT ASSEMBLIES, IMPROVEMENT
  IL_407-11-INDEX.pdf 01-Mar-12 INFORMATION LETTER INDEX
  IL_407-12-101.pdf 28-Feb-12 MAIN ROTOR MAST NUT, INSTALLATION AND REMOVAL
  IL_407-12-100.pdf 22-Feb-12 MAIN ROTOR BLADE EXPANDABLE BOLT P/N 406-310-103-101/ -103, INSPECTION REQUIREMENTS
  IL_407-12-99.pdf 22-Feb-12 BHT-407-MM-1, 12/24 MONTH SCHEDULED INSPECTIONS: ADDITIONAL REQUIREMENTS
  IL_407-06-88-RA.pdf 27-Oct-11 RADS SCRIPT FILES V7.32, INTRODUCTION
  IL_407-10-98.pdf 09-Jun-10 POWER TAKE OFF PAD (PTP) DOUBLE LIP SEAL INSTALLATION
  IL_407-10-97.pdf 02-Jun-10 MAINTENANCE MANUAL (BHT-407-MM-1) CHAPTER 4 AND 5, REVISION OF.
  IL 407-08-96 02-Jun-10 THIS NUMBER NOT TO BE ISSUED OR RELEASED
  IL407-08-95.pdf 11-Nov-08 DUAL TACHOMETER INDICATOR P/N 407-375-008-111 (BASIC SHIP) AND P/N 407-375-008-113 (QUIET MODE KIT),INTRODUCTION OF
  IL_407-07-94.pdf 21-Dec-07 USE OF TOOL SKSP1425-101DURING THE INSTALLATION OF THE ENGINE TO TRANSMISSION DRIVESHAFT 407-340-310-101.
  IL_407-07-93.pdf 18-Apr-07 SHEAR BEARING P/N 407-310-101-ALL
  IL_407-06-91_Rev_A.pdf 05-Mar-07 AIR COMM CORPORATION S.T.C. #SR00222DE AIR CONDITIONING KIT
  IL_407-06-92.pdf 12-Dec-06 BREEZE-EASTERN RESCUE HOIST AND CARGO WINCHES MAINTENANCE CONCEPT, MODIFICATION OF
  IL_407-06-90.pdf 19-Oct-06 MAIN ROTOR BLADES 407-015-001-135 AND -137, INTRODUCTION OF
  IL_407-06-89.pdf 21-Sep-06 BHT-407-II-30 SPECIAL POLICY PRICING, REVISION OF
  IL_407-06-88.pdf 26-Jan-06 RADS SCRIPT FILES V7.31, INTRODUCTION OF
  IL_407-05-87.pdf 29-Nov-05 FILTER 50-075-1, INSPECTION AND RECALL OF
  IL_407-04-76_Rev_A.pdf 28-Jul-05 BHT-407-MM-1 CHAPTER 5 FAA SUPPLEMENT CANCELATION
  IL 407-04-86.pdf 22-Nov-04 THOMAS COUPLING DISKS 407-340-340-101/-103, 50 HOURS RECURRING INSPECTION CANCELLATION OF
  IL 407-04-85.pdf 20-Jul-04 UPPER ENGINE COWLING ASSEMBLY, INTRODUCTION OF
  IL407-04-84.pdf 28-Jun-04 ROLLS-ROYCE CEB 73-6036
  IL 407-04-83.pdf 01-Jun-04 M407 - ALTERNATE METHOD OF COMPLIANCE (AMOC) TO FAA AD 2004-10-07 FOR REPLACEMENT OF TAIL ROTOR DRIVE SHAFT BEARINGS 406-040-339-ALL
  IL 407-04-82 - Mast Sleeve Replacement.pdf 20-Apr-04 MAST ASSEMBLY 407-040-011-101, /-103 AND /-105 SLEEVE REPLACEMENT.
  IL 407-04-81.pdf 06-Apr-04 IMPORTANCE OF FLIGHT MANUAL PROCEDURES AT LOW RPM
  IL 407-04-80.pdf 23-Mar-04 TAIL SKID ASSEMBLY P/N 206-020-110-103 RECALL
  IL 407-04-79.pdf 15-Mar-04 MAIN ROTOR BRAKE ASSEMBLY, - MAINTENANCE AND INSPECTION OF.
  IL 407-04-78 .pdf 16-Feb-04 INLET BARRIER FILTER, INTRODUCTION OF
  IL 407-04-77.pdf 26-Jan-04 M407 PROPULSION INSTRUMENT MAINTENANCE SOFTWARE (M407 PIMS) - INTRODUCTION OF
  IL 407-04-75 .pdf 23-Jan-04 IMPROVED OIL COOLER BLOWER HOUSING 206-061-431-131, INTRODUCTION OF.
  IL 407-03-74.pdf 22-Dec-03 BEARING 407-340-339-101 DEPLETION
  IL 407-03-73 .pdf 15-Dec-03 INFORMATION ON MODEL 407
  IL 407-03-71 Rev B.pdf 19-Nov-03 407 FADEC RELIABILITY
  IL 407-03-72.pdf 17-Nov-03 THE CORRECT ORIENTATION OF THRUST BEARING 206-040-038-ALL AND 406-040-038-ALL
  IL 407-00-57.pdf 05-Jun-03 MODEL 407 TAIL ROTOR FEATHERING BEARINGS
  IL 407-03-70.pdf 04-Apr-03 407 GENERAL INFORMATION RELEASE
  IL 407-03-69.pdf 28-Mar-03 BELL 407 INCIDENT
  IL 407-03-68 .pdf 13-Jan-03 BELL 407 MAST - INCIDENT REPORT
  IL 407-02-67.pdf 01-Mar-02 T/R DRIVE SYSTEM MODIFICATION BHT-407-II-30
  IL 407-01-66.pdf 03-Oct-01 TAIL ROTOR DRIVESHAFT BEARINGS 407-340-339-101 AND -103, GREASING FREQUENCY OF
  IL 407-01-65.pdf 02-Aug-01 MODEL 407 TRANSMISSION PYLON BEAMS
  IL 407-01-62 Rev B.pdf 10-Apr-01 M407 AIRSPEED REDUCTION (VNE), REMOVAL OF
  IL 407-01-61.pdf 05-Apr-01 TRANSPORT CANADA AVIATION AD CF-2001-01
  IL 407-01-60 REV.pdf 05-Apr-01 STATUS REPORT-ACCIDENT, BELL 407, S/N 53060
  IL 407-01-59 REV.pdf 05-Apr-01 BELL 407 ACCIDENT, S/N 53060
  IL 407-00-58.pdf 28-Nov-00 INSTALLATION INSTRUCTIONS FOR TAIL ROTOR PEDAL STOP KIT 407-704-004-103, POSSIBILITY OF INTERFERENCE OF THE GPS KLN 89B
  IL407-00-56.pdf 31-Oct-00 ENGINE INLET SCREEN P/N 206-064-213-165/-207, INSPECTION
  IL 407-00-55.pdf 04-Oct-00 AIR CONDITIONER COMPRESSOR DRIVE PULLEY
  IL 407-00-54.pdf 02-Oct-00 CABIN FRESH AIR VENTILATION SYSTEM
  IL 407-00-53.pdf 22-Aug-00 IL 407-00-53
  IL 407-00-52.pdf 22-Aug-00 IL 407-00-52
  IL_407-00-51.pdf 23-Jun-00 RECURRING TAILBOOM INSPECTION
  IL 407-00-49.pdf 24-May-00 MAIN ROTOR BLADES USEABLE ON 407 HELICOPTERS
  IL 407-00-46.pdf 07-Feb-00 ALTERNATE METHOD OF COMPLIANCE (AMOC) TO FAA AD 99-06-15; VNE RESTRICTION
  IL 407-00-47.pdf 07-Feb-00 FADEC - DIRECT REVERSION TO MANUAL SYSTEM
  IL 407-99-45.pdf 08-Oct-99 UPDATE STATUS OF INCREASE TO 140 KIAS
  IL 407-99-43.pdf 23-Sep-99 APPROVAL FOR INCREASED GROSS WEIGHT TO 5,250 LBS.
  IL 407-99-44.pdf 23-Sep-99 UPDATE STATUS OF INCREASE TO 140 KIAS
  IL 407-99-42.pdf 23-Sep-99 TAIL ROTOR DRIVE SYSTEM DISK PACK RECOMMENDED MAINTENANCE
  IL 407-99-40.pdf 23-Sep-99 AIRCOMM STC AIR CONDITIONING DRIVE PULLEY
  IL 407-99-41.pdf 23-Sep-99 VNE RECOVERY STATUS
  IL 407-99-38.pdf 23-Sep-99 AMOC PROCEDURES FOR RECURRING T/R GEARBOX TORQUE CHECK
  IL 407-99-37.pdf 23-Sep-99 UPDATE TO MODEL 407 VNE RESTRICTION
  IL 407-99-35.pdf 23-Sep-99 UPDATE TO VNE
  IL 407-99-36.pdf 23-Sep-99 UPDATE TO VNE RESTRICTION


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