ALPA Flight Time / Duty Time App

Updated: 2026-06-26 · Audited: 2026-06-26

The ALPA FTDT App assists pilots in determining their rest period, maximum duty day, and maximum flight time based on individual criteria entered by the pilot. The app tracks cumulative flight time and duty time limitations.

Documentation Index

USA (FAR Part 117)

DocumentDescription
DefinitionsKey terms and definitions for US operations under Part 117
Use Case ScenariosWorked examples covering common US pilot duty scenarios
US Duty PeriodDuty period rules, limitations, and rest requirements under Part 117
US CalculatorCalculator logic, formulas, and implementation for US operations
ResourcesReference links: ALPA Part 117 Guide (Ed. 5A), FAA documents, CFR Part 117

Canada (CARs)

DocumentDescription
Canadian OverviewOverview of the Canadian FTDT rules and calculator scope
Canadian DefinitionsTerms and definitions for Canadian operations under CARs
Canadian Use CasesWorked examples for Canadian pilot duty scenarios
Canadian Duty PeriodDuty period rules and rest requirements under CARs
Canadian CalculatorCalculator logic and formulas for Canadian operations
Canadian ResourcesReference links: Transport Canada CARs, Justice Laws full text

Implementation

DocumentDescription
Feature AB#1908 Implementation OverviewHigh-level implementation plan for FTDT feature work item AB#1908
TDD Implementation PlanTest-driven development plan for the FTDT calculator module

Regulatory Extracts

DocumentDescription
Regulatory Extracts IndexComplete regulatory text for implementation reference (Part 117 + CARs)

External References

USA (Part 117)

Canada (CARs)