MOTOR_COMMAND_OVERRIDDEN
This alarm is covered by this guide. Applicable alarms (1)
Likely outcomes — click to expand
Based on 878,812 missions where this alarm fired in the last 90 days as of 2026-10-13
Grounding vs discrepancy (of 5,783 ZERP issues filed on these missions)
Top work orders
- EV3: Inspect Aircraft after Droid Left Behind (DLB) · MAINTENANCE_ACTION 208
- Troubleshoot Hover Motor Resistance on Aircraft · INSPECTION 77
- EV2: Troubleshoot Electrical Contacts on Aircraft and Droid · INSPECTION 71
- Reset Droid Lid · TROUBLESHOOTING 57
- Perform Post-Paraland Inspection on Aircraft · MAINTENANCE_ACTION 37
Frequently replaced parts
| Part | P/N | Removals |
|---|---|---|
| SERVO, ASSY, UNIVERSAL, P2 | 20398 | 964 |
| CW/CCW HOVER MOTOR ASSY, ZIP, P2 | 19607 | 862 |
| ASSY, SPOOL AND LINE, DOCKING FIN, AIRCRAFT, P2 | 48477 | 754 |
| PRE-PREG TAIL ASSY STBD(RH), ZIP, P2 | 21840 | 724 |
| TAIL ASSY PORT(LH), ZIP, P2 | 31280 | 689 |
Aggregated from fleet operations and refreshed daily. Individual outcomes may vary by site and configuration.
Background
Section titled “Background”This happens for zip propulsion motors during a paraland or when the winch performs a thermal emergency descent.
Troubleshooting Steps
Section titled “Troubleshooting Steps”graph TD
find-the-identifier{"<small><b>Step 1</b></small><br/>Question: Find the identifier."}
this-alarm-should-only-be-set-on-these["<small><b>Step 2</b></small><br/>Action: This alarm should only be set on thes..."]
this-alarm-is-not-the-root-cause-of-the["<small><b>Step 3</b></small><br/>Action: This alarm is not the root cause of t..."]
identify-the-off-nominal{"<small><b>Step 4</b></small><br/>Question: Identify the off_nominal. Is the off_..."}
inspect-the-winch["<small><b>Step 5</b></small><br/>Action: Inspect the winch. Take photos of boa..."]
escalate-to-p2-firmware-motors-on-call-f{{"<small><b>Step 6</b></small><br/>Escalation: Escalate to P2 Firmware Motors On Cal..."}}
which-site-are-you-at{"<small><b>Step 7</b></small><br/>Question: Which site are you at?"}
escalate-to-p2-firmware-platform-on-cal{{"<small><b>Step 8</b></small><br/>Escalation: Escalate to P2 Firmware Platform On C..."}}
if-this-is-the-only-active-off-nominal["<small><b>Step 9</b></small><br/>Action: If this is the only active off-nomina..."]
alarm-and-mission-report-to-be-complete["<small><b>Step 10</b></small><br/>Action: Alarm and mission report to be comple..."]
find-the-identifier -->|/hover_*.feedback or /mi...| this-alarm-should-only-be-set-on-these
find-the-identifier -->|/winch.feedback| identify-the-off-nominal
this-alarm-should-only-be-set-on-these --> this-alarm-is-not-the-root-cause-of-the
this-alarm-is-not-the-root-cause-of-the --> alarm-and-mission-report-to-be-complete
identify-the-off-nominal -->|COMMAND_OVERRIDDEN_DUE_TO_...| inspect-the-winch
identify-the-off-nominal -->|COMMAND_OVERRIDDEN_DUE_TO_...| which-site-are-you-at
inspect-the-winch --> escalate-to-p2-firmware-motors-on-call-f
which-site-are-you-at -->|Commercial Site| escalate-to-p2-firmware-platform-on-cal
which-site-are-you-at -->|Test Site| if-this-is-the-only-active-off-nominal
if-this-is-the-only-active-off-nominal --> alarm-and-mission-report-to-be-complete
style find-the-identifier fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style this-alarm-should-only-be-set-on-these fill:#dcfce7,stroke:#22c55e,color:#14532d
style this-alarm-is-not-the-root-cause-of-the fill:#dcfce7,stroke:#22c55e,color:#14532d
style identify-the-off-nominal fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style inspect-the-winch fill:#dcfce7,stroke:#22c55e,color:#14532d
style escalate-to-p2-firmware-motors-on-call-f fill:#fef3c7,stroke:#f59e0b,color:#78350f
style which-site-are-you-at fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style escalate-to-p2-firmware-platform-on-cal fill:#fef3c7,stroke:#f59e0b,color:#78350f
style if-this-is-the-only-active-off-nominal fill:#dcfce7,stroke:#22c55e,color:#14532d
style alarm-and-mission-report-to-be-complete fill:#dcfce7,stroke:#22c55e,color:#14532d Hover or focus a block to preview it. Select the block to keep the preview open.
Is the off_nominal
COMMAND_OVERRIDDEN_DUE_TO_BOARD_TEMP or COMMAND_OVERRIDDEN_DUE_TO_MOTOR_TEMP set?Take photos of board and motor side of the winch and attach to ticket.
Visually inspect for signs of thermal damage.
If this is the second time this occurs, escalate to P2 Firmware Platform On Call.
Resolution note
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