The following P&WC compliance guidelines apply to service bulletins issued or revised after August 8, 1998.
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Service Bulletin (SB) Compliance Codes for Transport Canada Civil Aviation (TCCA) Certified Products
| Bulletin Category | Implementation Timing Recommendation |
|---|---|
| Category 1 | P&WC recommends you do this service bulletin before the next flight. |
| Category 2 | P&WC recommends you do this service bulletin the first time the aircraft is at a line or maintenance base that can do the procedure. |
| Category 3* | P&WC recommends you do this service bulletin within ____ hours or ____ cycles. |
| Category 4 | P&WC recommends you do this service bulletin the first time the engine or module is at a maintenance base that can do the procedures, regardless of the scheduled maintenance action or reason for engine removal. |
| Category 5 | P&WC recommends you do this service bulletin when the engine is disassembled and access is available to the necessary subassembly (i.e., module, accessories, components, or build groups) and do all spare subassemblies. |
| Category 6 | P&WC recommends you do this service bulletin when the subassembly (i.e., module, accessories, components, or build groups) is disassembled and access is available to the necessary part and do all spare subassemblies. |
| Category 7 | P&WC recommends you do this service bulletin when the supply of superseded parts is fully used, and a replacement part is required. |
| Category 8 | This service bulletin is optional and can be done at the discretion of the operator. |
| Category 9 | Spare Parts Information. |
| Category 10 | For information only. |
| Category 11 |
This is the old Omnibus category of Service Bulletin and is no longer in use. This paragraph is being kept for historical purposes only. This Service Bulletin is issued to document the modifications done on all engines, after engine certification but before aircraft entry into service. The result is that no Pre-SBXXXXX configuration will appear in the technical publications for the modification accomplished prior to aircraft entry into service. |
| Category 15 | This Service Bulletin is issued to document the modifications done on all engines, after engine certification but before aircraft entry into service. The result is that no Pre-SBXXXXX configuration will appear in the technical publications for the modification accomplished prior to aircraft entry into service. |
| Category CSU* | Operators who participate should incorporate this Service Bulletin at the ____ [insert suitable compliance recommendation such as discretion of P&WC Customer Engineering/the next maintenance opportunity/the next overhaul]. |
* The compliance statements for these SB categories are customisable.
Service Bulletin (SB) Compliance Codes for European Aviation Safety Agency (EASA) Certified Products
| Bulletin Category | Implementation Timing Recommendation |
|---|---|
| Category 1 | It is recommended to do this service bulletin before the next flight. |
| Category 2 | It is recommended to do this service bulletin the first time the aircraft is at a line or maintenance base that can do the procedure. |
| Category 3* | It is recommended to do this service bulletin within ____ hours or ____ cycles. |
| Category 4 | It is recommended to do this service bulletin the first time the engine or module is at a maintenance base that can do the procedures, regardless of the scheduled maintenance action or reason for engine removal. |
| Category 5 | It is recommended to do this service bulletin when the engine is disassembled and access is available to the necessary subassembly (i.e., module, accessories, components, or build groups) and to do all spare subassemblies. |
| Category 6 | It is recommended to do this service bulletin when the subassembly (i.e., module, accessories, components, or build groups) is disassembled and access is available to the necessary part and to do all spare subassemblies. |
| Category 7 | It is recommended you do this service bulletin when the supply of superseded parts is fully used, and a replacement part is required. |
| Category 8 | This service bulletin is optional and can be done at the discretion of the operator. |
| Category 9 | Spare Parts Information. |
| Category 10 | For information only. |
| Category 11 |
This is the old Omnibus category of Service Bulletin and is no longer in use. This paragraph is being kept for historical purposes only. This Service Bulletin is issued to document the modifications done on all engines, after engine certification but before aircraft entry into service. The result is that no Pre-SBXXXXX configuration will appear in the technical publications for the modification accomplished prior to aircraft entry into service. |
| Category 15 | This Service Bulletin is issued to document the modifications done on all engines, after engine certification but before aircraft entry into service. The result is that no Pre-SBXXXXX configuration will appear in the technical publications for the modification accomplished prior to aircraft entry into service. |
| Category CSU* | Operators who participate should incorporate this Service Bulletin at the ____ [insert suitable compliance recommendation such as discretion of P&WR Customer Engineering/the next maintenance opportunity/the next overhaul]. |
* The compliance statements for these SB categories are customisable.
Compliance Statement
| Group/Code | Compliance Statement |
|---|---|
| A | For conditions which could result in an in-flight shutdown, significant loss of power/thrust or any other similar situation affecting flight safety. |
| A1A | Recommended - Urgent. P&WC recommends (Alert SBs) accomplishment prior to next flight. An Airworthiness Directive has been requested. |
| A1B | Recommended - Most desirable. To be accomplished during next visit to a facility where specified maintenance action(s)/modification(s) can be accomplished. |
| A1C | Currently not used. |
| A1D | Recommend - Highly desirable. To be accomplished prior to part life expiry or within _???_ hours (or _???_ cycles). |
| A2 | Recommend - Highly desirable. P&WC recommends accomplishment at first shop visit of module/engine/power section/RGB/accessory regardless of extent of disassembly. |
| B | For conditions which affect engine life (PERs) and operating costs: |
| B3A | Recommended - Desirable. P&WC recommends accomplishment when disassembly of engine/power section/RGB/accessory is sufficient to afford access to the affected module/subassembly. |
| B3B | Recommended - Desirable. P&WC recommends accomplishment when disassembly of engine/power section/RGB/accessory is sufficient to afford access to the affected part. |
| B4 | Recommended - Incorporation applicable on attrition of prior configuration parts when supply of such items is depleted. |
| B5 | Optional - At the discretion of an operator. P&WC recommends accomplishment based on operator's experience with prior configuration parts. |
| B6 | Informational - For record purposes and/or to provide useful technical information or to support engine operation/maintenance/logistics. |
