User's Guide
Table Of Contents
- 1 Introduction
- 1.1 Audience
- 1.2 Overview
- 1.3 Envoy CMU Features
- 1.4 Configuration Options for Envoy
- 2 Operation of Envoy
- 3 CPDLC Operations
- 3.1 Log On
- 3.2 Logoff
- 3.3 Lost Connection
- 3.4 Typical Message Composition
- 3.5 ATC Menu
- 3.5.1 ATC Request Menu – FANS 1/A+ and ATN B1 CPDLC Common
- 3.5.2 ATC REPORT Menu
- 3.5.3 WHEN CAN WE EXPECT
- 3.5.4 POS REPORT Message – FANS 1/A+
- 3.5.5 EMERGENCY (MAYDAY) Message – FANS 1/A+
- 3.5.6 ATC MSG LOG
- 3.5.7 CLEARANCE REQUESTS – FANS 1/A+
- 3.5.8 FREE TEXT 1/2
- 3.5.9 ATC VOICE CONTACT Message – FANS 1/A+
- 3.5.10 Cancel EMERGENCY, Cancel ADS
- 3.5.11 Flight Plan Transactions and Monitoring
- 4 Automatic Dependent Surveillance (ADS)
- 5 ACARS Operations
- 6 MAINTENANCE Menu
- Appendix A Acronyms
- Appendix B AFN Messages
- Appendix C Supported CPDLC Messages
- Appendix D ADS-C Tags
- Appendix E ACARS Message Labels
- Appendix F ATSU Call Signs (ICAO, IATA)
- Appendix G Fault Management
User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 92 of 173
6.2 FAULT LOG
To open the FAULT LOG, from the main menu press LSK L5 on the MAINT menu.
The fault log lists up to 4 pages of faults for the current/latest flight. in order of first occurrence,
newest first. The main page lists the faults associated with the Envoy system and/or configured
discretes, and provides access to the detailed fault description, which displays timestamps for the
first and latest occurrence, along with total count of occurrences detected for the given fault. The
fault log can be printed or sent to AOC during non-critical stages of flight, and when on the ground.
The aircrew can view detailed information about a specific fault by pressing the respective LSK to
open the fault description page described in Section 6.2.1.
Figure 6-3FAULT LOG
For an itemized list of faults tracked by the Envoy, see Appendix G Fault Management.