Line Replaceable Parts
LRU and LRP service options, processes, and obligations
Defined LRU / LLP List
The defined list of LRUs and LLPs covered under TotalCare for each engine type will be published here.
Pending TCA Confirmation
Confirmation pending — Tim to verify with Jules whether the defined LRU/LLP list belongs in the TotalCare Agreement.
Service Options
Customers can have either Time & Material, LRU Management or LRP (PAS) Services. This page documents the LRP Service; LRU Management has its own dedicated page.
Definitions
Updated · Jun 2026Line Replaceable Unit (LRU)
An item, as defined within the TCA, supplied by a Rolls-Royce or an approved vendor that can be removed on the line and as listed in the TotalCare Services Agreement.
Line Replaceable Part (LRP)
A Rolls-Royce Proprietary part that can be removed from an engine during Line Maintenance, excluding:
- Fan Blades and Annulus Fillers removed for time expiry
- Parts which fall outside the definition of a Dressed Engine (or Installed Engine for Trent 1000 only)
- Line Replaceable Units
- Any parts required solely for transportation and storage purposes
Note: LRPs required during shop visits are covered within core TotalCare services.
Service Scope
Updated · Jun 2026The Line Replaceable Parts (LRP) Service covers (i) the repair or replacement of Line Replaceable Parts during line maintenance (including Fan Blades and Annulus Fillers for non-negligent FOD and attrition), and (ii) logistics for Repairable Line Replaceable Parts to and from designated customer bases and designated repair vendors.
The LRP service can be offered as an optional TotalCare service charged at a $/EFH rate.
Service Bulletin Coverage
The replacement of LRPs required to incorporate Alert, Mandated and Recommended Service Bulletins — and the upgrade of line spares stock where the customer's existing stock is superseded by such Service Bulletins — is included within the Reliability and Improvements Service, and is therefore included within Core TotalCare.
Rolls-Royce Obligations
- Provide the customer with a list of Initial Provisioning (IP) parts and tools 2 years prior to EIS — the list of parts is referred to as the Recommended Spares Parts List (RSPL)
- Provide routine updates to the RSPL based on fleet size and LRU reliability
- Manage repairs in accordance with the Service Level
- Provide IP subject to customer
Customer Obligations
- Purchase recommended IP to be delivered prior to EIS
- Store and handle the parts in accordance with the applicable maintenance manual
Part Removal
CustomerCustomer removes a part during line maintenance.
Notify & Agree Qualification
CombinedCustomer notifies the Rolls-Royce AST of the removal and agrees qualification.
Raise Repair Order (24 hours)
CustomerWithin 24 hours, the customer raises a Repair Order on Rolls-Royce, detailing the information required to support repair / overhaul.
Package & Make Available (48 hours)
CustomerWithin 48 hours of raising the repair order, the customer packages, and inhibits where necessary, each Repairable LRP together with the repair order in accordance with IATA regulations, and makes it available DAP (Incoterms 2020) at its designated location.
Scrap or Return
CustomerCustomer scraps all Expendable LRPs locally; all Repairable LRPs are returned to a location nominated by Rolls-Royce in accordance with the Customer Obligations.
Customs Clearance
CustomerCustomer grants Rolls-Royce the use of its import and export licenses at no cost, to allow the logistics provider to gain or arrange customs clearance prior to collection and redelivery to the customer's designated location.
New Part Transportation
CustomerCustomer arranges and pays for transportation of any new Line Replaceable Parts issued from the ADC, Derby to the customer's main base.
Removal Data — Required Within 48 Hours
Following part removal, and within 48 hours, the customer must provide the following information to the Rolls-Royce AST:
Required
- Part Number
- Detailed reason for removal
- Engine Type
- Engine Serial Number
- Aircraft tail number
- Customer Repair Order (RO)
- Date of Line Replaceable Part removal (from engine)
- Non-incidence report
Where Applicable
- Serial Number
- Time Since New
- Time Since Overhaul
- Cycles Since New
- Cycles Since Overhaul
Failure to provide this information will jeopardise Rolls-Royce's ability to meet any commitments given under the LRP service, and Rolls-Royce may recover any additional costs incurred as a result.
Title & Delivery of Parts
| Situation | Title | Delivery |
|---|---|---|
| 1. Expendable LRP — serviceable replacement provided | Customer scraps the part locally and produces a scrap certificate for Rolls-Royce. Title to the serviceable replacement part passes to the Customer on delivery, FCA Derby. | Rolls-Royce delivers the serviceable replacement Line Replaceable Part, FCA Derby. |
| 2. Repairable LRP sent to Repair Vendor, repaired and sent back to Customer | N/A — no transfer of title. | Customer delivers the LRP DAP (Incoterms 2020) at its designated location and Rolls-Royce delivers it to the Repair Vendor. Rolls-Royce transports the repaired part from the Repair Vendor back to the designated location, DAP (Incoterms 2020). |
| 3. Repairable LRP sent to Repair Vendor and Customer provided with a new LRP because the part is scrapped at the Repair Vendor | Repair Vendor scraps the part locally and produces a scrap certificate for Rolls-Royce. Title to the new Line Replaceable Part passes to the Customer on delivery of the new part, FCA Derby. | Customer delivers the LRP DAP (Incoterms 2020) at its designated location and Rolls-Royce delivers it to the Repair Vendor. Rolls-Royce delivers the new replacement part, FCA Derby (Incoterms 2020). |
Expendables — Scrapping & Annual Review
There is no obligation for the Customer to inform Rolls-Royce on a case-by-case basis when Expendables are scrapped. However, an internal annual review will be undertaken to compare orders for Expendable parts against expected usage; if required, a review will be conducted between Rolls-Royce and the Customer on the number of LRPs ordered, and any remedial actions agreed.
Repair Order Information Required
Unit is to be reworked in accordance with vendor CPM/CMM Modification standard
"This is a ROLLS-ROYCE LRU/LRP MANAGEMENT UNIT"
Ship to address
Engine Serial Number
Date of unit removal
Unit Part Number
Unit Serial Number
Unit hours and cycles since new
Unit hours and cycles since repair or Overhaul
Detailed Reason for Removal
Maintenance Message where applicable
Confirmation that all necessary troubleshooting was carried out
Details of any other Assets removed as part of troubleshooting
No Fault Found (NFF) Rate Monitoring
The NFF rate will be reviewed monthly. If the NFF rate is above 15%, Rolls-Royce and the Customer will review troubleshooting procedures with a view to reducing NFF rates. LRU Removals are reviewed @BRM.
LRU Shortage & Beyond Economic Repair
Shortage Management
The OHB will aim to return the same unit to the Engine. If an LRU is not available at kitting, the OHB seeks assistance via the RR OBM, who reviews options with AST, Customer, and LRU Management team.
Beyond Economic Repair
If an LRU is deemed beyond economic repair, the RR OBM will agree replacement options with the RR AST, Customer, and LRU Management team as appropriate.
Exchange Timelines
Scheduled for RemovalRepair Order Raised
TBA
Non-Main Base Repair Order
TBA
Pack & Ship
TBA
Exchange LRU Delivery
TBA
Exchange LRU Documentation
Rolls-Royce provides the following for every Exchange LRU:
- EASA Form 1 and/or FAA Form 8130
- Part Number & Serial Number
- TSN, TSO, CSN, CSO
- Reason for last removal + shop visit report
NFF Threshold
No Fault Found rate above 15% triggers a joint review of troubleshooting procedures. Reviewed @BRM.
Abbreviations
Pro Tip
Include all 13 required data points on every Repair Order to prevent processing delays. Ensure thorough troubleshooting before removal to keep NFF rates below the 15% threshold.