audit trails
2 articles

IATA Delay Codes in Operations Systems: Editions and Audits
A 2026 guide to edition-aware IATA delay codes in operations systems: cause-minute pairs, revision history, unresolved mappings and acceptance tests for native platforms or a narrow integration.
10/13/2026• 21 min read
iata delay codesairline delay codesflight operations software

Part 117 vs Part 135 Flight Duty Time: Data Checklist
A 2026 US comparison for crew scheduling and operations IT: rule boundaries, source-of-record fields, planned versus actual events, correction tests, API questions and an audit handoff checklist.
10/5/2026• 23 min read
part 117 vs part 135 flight duty timepart 117part 135