Check if winch.feedback alarm is set to TRUE
Applicable alarms (3)
Likely outcomes — click to expand
Based on 252 missions where this alarm fired in the last
90 days
(for MAINTENANCE_ACTION_REQUIRED) as of 2026-10-13
Grounding vs discrepancy (of 346 ZERP issues filed on these missions)
Top work orders
- EV2: Replace Hover Motor on Aircraft · MAINTENANCE_ACTION 31
- EV2: Replace Hover Propeller on Aircraft · MAINTENANCE_ACTION 25
- EV2/EV3 Diagnostics Test Without Motors · INSPECTION 22
- EV2: Replace Aft Motor Assembly on Aircraft · MAINTENANCE_ACTION 18
- EV2: Inspect Aircraft after Droid Left Behind (DLB) · MAINTENANCE_ACTION 17
Frequently replaced parts
| Part | P/N | Removals |
|---|---|---|
| HOVER MOTOR ASSY, CCW MOTOR, ZIP, P2 | 19607 | 256 |
| CW EV3 HOVER MOTOR ASSY, ZIP, P2 | 33333 | 190 |
| AFT MOTOR ASSY, ZIP, P2 | 23548 | 134 |
| CCW HOVER PROPELLER BLADE, ZIP, P2 | 29857 | 103 |
| T800 CW HOVER PROPELLER, ZIP, P2 | 31101 | 103 |
Frequently co-occurring alarms (% of the 252 missions above)
Aggregated from fleet operations and refreshed daily. Individual outcomes may vary by site and configuration.
Troubleshooting Steps
Section titled “Troubleshooting Steps”graph TD
open-baraza-log-plot-by-clicking-on-thi["<small><b>Step 1</b></small><br/>Action: Open Baraza log plot by clicking on t..."]
copy-the-mission-id-from-the-ticket-rel["<small><b>Step 2</b></small><br/>Action: Copy the mission ID from the Ticket r..."]
confirm-if-droid-charge-hardware-fault-p["<small><b>Step 3</b></small><br/>Action: Confirm if **DROID_CHARGE_HARDWARE_F..."]
check-the-plot-and-confirm-if-maintenanc["<small><b>Step 4</b></small><br/>Action: Check the plot and confirm if MAINTE..."]
open-baraza-log-plot-by-clicking-on-thi --> copy-the-mission-id-from-the-ticket-rel
copy-the-mission-id-from-the-ticket-rel --> confirm-if-droid-charge-hardware-fault-p
confirm-if-droid-charge-hardware-fault-p --> check-the-plot-and-confirm-if-maintenanc
style open-baraza-log-plot-by-clicking-on-thi fill:#dcfce7,stroke:#22c55e,color:#14532d
style copy-the-mission-id-from-the-ticket-rel fill:#dcfce7,stroke:#22c55e,color:#14532d
style confirm-if-droid-charge-hardware-fault-p fill:#dcfce7,stroke:#22c55e,color:#14532d
style check-the-plot-and-confirm-if-maintenanc fill:#dcfce7,stroke:#22c55e,color:#14532d Hover or focus a block to preview it. Select the block to keep the preview open.
MAINTENANCE_ACTION_REQUIRED and POWER_MOCK_ACTIVE are set to TRUE.
Resolution note
This plaintext block is ready to paste into the Resolution Note field on the ZERP issue you're working. The permalink below gives engineering review access to the full step-by-step timeline including any back-navigation; share it if the case needs a deeper look.
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