DAC Lifing
Onboarding airlines to DAC Lifing methodology via Blue Data Thread
DAC Lifing Overview
DAC (Data Analysis and Correlation) lifing is an integral part of the operation of modern Trent engines. The automated provision of data drives both day-to-day and the recurring DAC approval processes.
Maintenance Data
Exports from airline maintenance system
Performance Data
Aircraft performance data capture
Parallel projects are required to build data exports from the airline maintenance system, and to capture aircraft performance data supply. Both projects are run by Rolls-Royce with its Blue Data Thread partners.
Rolls-Royce, BDT Partners (Maintenance & Performance), Airline/Operator
LAA Approval
The airline must obtain non-objection from their Local Airworthiness Authority (LAA) before adopting DAC as the executive lifing methodology.
Benefits of DAC
DAC lifing enables automated life calculation and management of LLPs using real flight data, optimizing component lives and reducing operational costs.
Project Timeline
Pre-EIS
-3 to -6 months: Introduction & onboarding
EIS
Entry Into Service: System integration
EIS + 12 months
Data collection and validation
EIS + 15 months
Activation and approval
Key Terms
DAC
Data Analysis and Correlation
BDT
Blue Data Thread - R-R data integration partners
LAA
Local Airworthiness Authority
EIS
Entry Into Service
LLP
Life Limited Part
Data Requirements
Minimum 1 year of post-EIS data collection is required before DAC activation can be considered. Data must be validated through SFTP channels with BDT partners.
Pro Tip
Early engagement with your IT team is critical for successful BDT integration. Ensure Powerplant engineering is coordinating with IT for data export configurations.