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A flight instructor reported an airborne conflict with a military aircraft that may have been caused by the failure to operate the transponder in altitude reporting mode.
| Attributes | |
| ACN | 1318309 |
| Time | |
| Date | 201512 |
| Local Time Of Day | 0601-1200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | None |
| Aircraft 2 | |
| Make Model Name | Thunderbolt II (Warthog A-10) |
| Component | |
| Aircraft Component | Transponder |
| Person 1 | |
| Function | Pilot Not Flying Instructor |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 80 Flight Crew Total 560 Flight Crew Type 100 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Conflict NMAC Deviation - Procedural Published Material / Policy |
| Miss Distance | Horizontal 100 Vertical 100 |
Narrative:
Left seat pilot was under hood; instructor was looking for traffic. An A-10 moving the opposite direction seemed to take evasive action to avoid our training flight. After startup and during our run-up; we neglected to put the transponder in altitude reporting mode; which caused the controller to miss us on secondary radar. My mistake as an instructor was not remembering to verify altitude reporting mode; not being as vigilant with traffic scan; and neglecting to talk to approach control in the practice area.
Original NASA ASRS Text
Title: A flight instructor reported an airborne conflict with a military aircraft that may have been caused by the failure to operate the transponder in altitude reporting mode.
Narrative: Left seat pilot was under hood; instructor was looking for traffic. An A-10 moving the opposite direction seemed to take evasive action to avoid our training flight. After startup and during our run-up; we neglected to put the transponder in Altitude reporting mode; which caused the controller to miss us on secondary radar. My mistake as an instructor was not remembering to verify altitude reporting mode; not being as vigilant with traffic scan; and neglecting to talk to approach control in the practice area.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.