NODES_APPEAR_SWAPPED
Applicable alarms (1)
Likely outcomes — click to expand
Based on 1 missions where this alarm fired in the last 90 days as of 2026-10-13
Aggregated from fleet operations and refreshed daily. Individual outcomes may vary by site and configuration.
Background
Section titled “Background”This alarm means the distro hover configuration checker found a one-to-one hover mapping, but the hover motor units appear to be installed in the wrong physical corners.
This indicates a physical swap rather than a simple timing failure.
See DISTRO HOVER CONFIGURATION CHECKER for a description of how the diagnostic works.
Troubleshooting Steps
Section titled “Troubleshooting Steps”graph TD
is-draft-nodes-appear-swapped-active-o{"<small><b>Step 1</b></small><br/>Question: Is NODES_APPEAR_SWAPPED active on ..."}
power-cycle-the-vehicle-and-send-a-pre{"<small><b>Step 2</b></small><br/>Question: Power cycle the vehicle and send a pr..."}
the-aircraft-may-return-to-service["<small><b>Step 3</b></small><br/>Action: The aircraft may return to service."]
verify-the-hover-motor-units-are-ins["<small><b>Step 4</b></small><br/>Action: Verify the hover motor units are inst..."]
if-any-hover-motor-unit-is-installed["<small><b>Step 5</b></small><br/>Action: If any hover motor unit is installed ..."]
run-an-ota-to-update-firmware-and-hov["<small><b>Step 6</b></small><br/>Action: Run an OTA to update firmware and hov..."]
send-a-preflight-mission-again-did-pr{"<small><b>Step 7</b></small><br/>Question: Send a preflight mission again. Did p..."}
the-aircraft-may-return-to-service-2["<small><b>Step 8</b></small><br/>Action: The aircraft may return to service."]
escalate-to-p2-firmware-motors-on-cal{{"<small><b>Step 9</b></small><br/>Escalation: Escalate to P2 Firmware Motors On Call."}}
continue-troubleshooting-using-the-ala["<small><b>Step 10</b></small><br/>Action: Continue troubleshooting using the al..."]
is-draft-nodes-appear-swapped-active-o -->|Yes| power-cycle-the-vehicle-and-send-a-pre
is-draft-nodes-appear-swapped-active-o -->|No| continue-troubleshooting-using-the-ala
power-cycle-the-vehicle-and-send-a-pre -->|Yes| the-aircraft-may-return-to-service
power-cycle-the-vehicle-and-send-a-pre -->|No| verify-the-hover-motor-units-are-ins
verify-the-hover-motor-units-are-ins --> if-any-hover-motor-unit-is-installed
if-any-hover-motor-unit-is-installed --> run-an-ota-to-update-firmware-and-hov
run-an-ota-to-update-firmware-and-hov --> send-a-preflight-mission-again-did-pr
send-a-preflight-mission-again-did-pr -->|Yes| the-aircraft-may-return-to-service-2
send-a-preflight-mission-again-did-pr -->|No| escalate-to-p2-firmware-motors-on-cal
style is-draft-nodes-appear-swapped-active-o fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style power-cycle-the-vehicle-and-send-a-pre fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style the-aircraft-may-return-to-service fill:#dcfce7,stroke:#22c55e,color:#14532d
style verify-the-hover-motor-units-are-ins fill:#dcfce7,stroke:#22c55e,color:#14532d
style if-any-hover-motor-unit-is-installed fill:#dcfce7,stroke:#22c55e,color:#14532d
style run-an-ota-to-update-firmware-and-hov fill:#dcfce7,stroke:#22c55e,color:#14532d
style send-a-preflight-mission-again-did-pr fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style the-aircraft-may-return-to-service-2 fill:#dcfce7,stroke:#22c55e,color:#14532d
style escalate-to-p2-firmware-motors-on-cal fill:#fef3c7,stroke:#f59e0b,color:#78350f
style continue-troubleshooting-using-the-ala fill:#dcfce7,stroke:#22c55e,color:#14532d Hover or focus a block to preview it. Select the block to keep the preview open.
NODES_APPEAR_SWAPPED active on /distro_a.power_status?Resolution note
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