EXEC_TO_WINCH_STALE
Applicable alarms (1)
Likely outcomes — click to expand
Based on 287 missions where this alarm fired in the last 90 days as of 2026-10-13
Grounding vs discrepancy (of 3 ZERP issues filed on these missions)
Frequently replaced parts
| Part | P/N | Removals |
|---|---|---|
| ASSY, SPOOL AND LINE, DOCKING FIN, AIRCRAFT, P2 | 48477 | 3 |
Aggregated from fleet operations and refreshed daily. Individual outcomes may vary by site and configuration.
Background
Section titled “Background”This alarm occurs when the winch gnc process has not heard from the zip executive within a certain time window.
Troubleshooting Steps
Section titled “Troubleshooting Steps”graph TD
reboot-the-zip-compute["<small><b>Step 1</b></small><br/>Action: Reboot the zip compute Power Cycle ..."]
is-the-alarm-still-there{"<small><b>Step 2</b></small><br/>Question: Is the alarm still there?"}
escalate-to-p2-exec-on-call{{"<small><b>Step 3</b></small><br/>Escalation: Escalate to P2 Exec On Call"}}
continue-with-operations["<small><b>Step 4</b></small><br/>Action: Continue with operations"]
reboot-the-zip-compute --> is-the-alarm-still-there
is-the-alarm-still-there -->|Yes| escalate-to-p2-exec-on-call
is-the-alarm-still-there -->|No| continue-with-operations
style reboot-the-zip-compute fill:#dcfce7,stroke:#22c55e,color:#14532d
style is-the-alarm-still-there fill:#dbeafe,stroke:#3b82f6,color:#1e3a5f
style escalate-to-p2-exec-on-call fill:#fef3c7,stroke:#f59e0b,color:#78350f
style continue-with-operations fill:#dcfce7,stroke:#22c55e,color:#14532d Hover or focus a block to preview it. Select the block to keep the preview open.
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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Session is too large to fit in a URL. Use Download session JSON to share the timeline out-of-band.
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