What this profile covers
Safe use of controller-pilot data link messages, including logon, message interpretation, response, execution, cross-checking, and voice coordination.
Why it matters
Airspace safety depends on aircraft, crews, controllers, surveillance, communications, navigation, and procedures maintaining a consistent operating picture. For cpdlc operations, useful analysis connects the immediate event with exposure, defenses, recurrence, and the wider operating system rather than treating one observation as a final conclusion.
Separation, clearances, communications, navigation integrity, airspace containment, and traffic conflict.
Understand the subject before interpreting a signal.
In plain language, this profile examines safe use of controller-pilot data link messages, including logon, message interpretation, response, execution, cross-checking, and voice coordination.
Build a multi-source picture
- ATC clearances, recordings, and surveillance
- Aircraft navigation, trajectory, and alert data
- Procedure, chart, database, and airspace information
- Weather and crew/controller reports
Timing, relationships, and recurrence
Relevant recorded context may include radio altitude. Use validated mappings and examine signal relationships over the applicable flight phase.
Do not turn an observation into a conclusion
Trajectory or alert data should not be interpreted without the applicable clearance, airspace, navigation source, surveillance quality, and communication context.
Keep controlling material visible
Apply the current approved manuals, procedures, authority requirements, investigation evidence, and validated organizational definitions for any operational decision.
From a broad topic to a defensible safety review.
Define
State what cpdlc operations means for the aircraft, operation, authority, and organization in scope.
Verify
Confirm the provenance, quality, timing, units, completeness, and limitations of every data source used.
Describe
Reconstruct what happened and quantify relevant exposure before discussing causes or corrective action.
Corroborate
Compare flight data with reports, operational context, technical evidence, and authoritative source material.
Test barriers
Identify which preventive, recovery, and consequence-mitigation controls should have worked and how their performance can be measured.
Assure
Assign proportionate action and verify whether the control and safety performance improve without harmful unintended effects.
Questions before conclusions
- Q1
How is cpdlc operations defined for the aircraft, operation, authority, and organization being reviewed?
- Q2
Which precursors, recorded signals, reports, and external data would confirm the event and describe its context?
- Q3
Which preventive, recovery, and consequence-reduction barriers should work, and where could they weaken?
- Q4
What does recurrence, exposure, severity potential, or change over time show before choosing a safety action?
1 connected event profiles
These are terminology and family connections for exploration—not claims that FDM alone can determine the topic.
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Original ASIP summaries lead to publisher pages. ASIP does not copy or host the reports.
SAFO 23005 — Recommended Procedures for Controller Pilot Data Link Communications (CPDLC) and Partial Re-route Clearances (Revised Initial UM79 uplink message)
Official U.S. Federal Aviation Administration material indexed for aviation safety. Open the publisher source for the complete document, scope, and current status.
Open official sourceSAFO 10011 — MD-11 Honeywell Pegasus Flight Management Computer ( FMC ) Controlled Pilot Data Link Communication ( CPDLC ) Anomalies
Official U.S. Federal Aviation Administration material indexed for aviation safety. Open the publisher source for the complete document, scope, and current status.
Open official sourceAnnex 19 — Safety Management, Third Edition
Annex 19 consolidates ICAO safety-management provisions, including State safety responsibilities, SMS, safety-data collection and processing, and the protection and sharing of safety information.
Open official sourceAnnual Safety Review 2025
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Open official sourceStatistical Summary of Commercial Jet Airplane Accidents, 1959–2024
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Open official sourceIATA Annual Safety Report — 2024
IATA's 61st annual report provides an interactive, method-defined view of commercial aviation accident performance and contributing-factor classifications.
Open official sourceAC 120-92D — Safety Management Systems for Aviation Service Providers
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Open official sourceAC 91-79B — Aircraft Landing Performance and Runway Excursion Mitigation
This FAA circular brings together landing-performance planning, time-of-arrival assessment, RCAM information, and operational practices for reducing runway-excursion risk.
Open official sourceSafety Alert SA-077 — Stabilized Approaches Lead to Safe Landings
The NTSB alert highlights the need to establish and maintain a stabilized approach and to go around when an approach falls outside applicable criteria.
Open official sourceHigh Load Event Reporting
The Airbus Safety First article explains why a pilot report remains central after a suspected high-load event and how recorded reports and analysis tools can support the applicable maintenance process.
Open official sourceSafety Management Manual (Doc 9859), Fourth Edition
ICAO's fourth-edition manual explains how safety data, risk management, assurance, culture, and governance work together in State and service-provider safety management.
Open official sourceGo-Around Decision-Making and Execution Project — Final Report
The Flight Safety Foundation project examines go-around policy compliance, decision biases, operational pressures, and the risks that also need to be managed during go-around execution.
Open official sourceCommon Taxonomy Team
International work on common aviation occurrence categories and definitions for consistent reporting and analysis.
Open referenceSafety Risk Management
European safety-risk process connecting data, safety issues, risk portfolios, priorities, and safety action.
Open referenceAnnual programmes and reports
Annual safety reviews and risk portfolios used to identify key risk areas, safety issues, and emerging issues.
Open referenceEuropean Plan for Aviation Safety 2025
A broad evidence-based portfolio showing the scale and connected nature of current aviation safety issues.
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A practical discovery index for operational safety subjects; official authority and manufacturer sources remain controlling where applicable.
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