Service Directive Bulletins – Turbine
A Service Directive Bulletin (SDB) is used to direct the owner/operator and/or maintenance personnel to make mandatory changes, improvements, or inspections to the aircraft.
The information provided in the Service Directive Bulletins will be incorporated into the maintenance manual as needed at a later date. At the time of incorporation, the SDB is superseded by the maintenance manual, and accomplishment or sign-off of the SDB in the maintenance records book is no longer required. A detailed entry should be made in the maintenance records to indicate that the SDB is superseded by the maintenance manual.
Turbine Service Directive Bulletin Index
- SDB T-001
- SDB T-002
- SDB T-003
- SDB T-004
- SDB T-005
- SDB T-006
- SDB T-007
- SDB T-008R3 Oil Cooler Blower Shaft
- SDB T-009
- SDB T-010
- SDB T-011
- SDB T-012R1 TRGB Input Seal
- SDB T-013R2
- SDB T-014R1
- SDB T-015
- SDB T-016
- SDB T-017
- SDB T-018
- SDB T-019R2
- SDB T-020
- SDB T-021
- SDB T-022
- SDB T-023
- SDB T-024
- SDB T-025
- SDB T-026R1
- SDB T-027R1
- SDB T-028R2 Engine Assy
- SDB T-029
- SDB T-030
- SDB T-031
- SDB T-032
- SDB T-033R1
- SDB T-034
- SDB T-035
clarification - SDB T-036
clarification - SDB T-037
- SDB T-038R1
- SDB T-039R3
- SDB T-040
- SDB T-041
- SDB T-042R2 Corrosion Inspection
- SDB T-043 Trim Relay
- SDB T-044 (Reserved)
- SDB T-045R1 Collective Pin
- SDB T-046R3 Drive-Belt
- SDB T-047 Tail Rotor Drive Shaft Bearing Assembly
- SDB T-048 Engine Idle Stop Assembly
- SDB T-049 ORC Assembly
- SDB T-050R3 Main Rotor Spindle
MPI Instruction Guide - SDB T-051 Fuel Tank Inspection
- SDB T-052 Engine Idle Stop Wiring
- SDB T-053 Air Particle Separator
- SDB T-054 Lamiflex Bearing Inspection
- SDB T-055R1 Tail Rotor Rotating Controls
- SDB T-056 Restraint Attachment
- SDB T-057 Fuel Quantity Transmitter – Cover and Gasket
- SDB T-058R1 Rod End Bearing Assembly
- SDB T-059 Fuel Quantity Indicator
- SDB T-060R1 Fiberglass Procedure for Upper Plenum
- SDB T-061R1 Lower Air Plenum Wedge Vane
- SDB T-062R2 Drag Strut Plate Installation
- SDB T-063 Cargo Hook Extension Link Inspection
- SDB T-064 Tailcone Bulkhead
- SDB T-065 Transmission Mount – Pylon Joint Cracks