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Zipline Zipline Service Documentation

    Propulsion Feedback Not Qualified

    published Last Updated: Oct 9, 2026 HW: EV2HW: EV3
    Applicable alarms (2)
    0x001004C6ZIP_EXECUTIVE_V4_PROPULSION_FEEDBACK_UNQUALIFIED
    Likely outcomes (0 missions) — click to expand

    Based on 0 missions where this alarm fired in the last 90 days (for 0x001004C6) 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 error blocks takeoff when none of the propulsion motor feedback streams qualifies on a compute. It was introduced to detect degraded Ethernet communication, not to diagnose a motor hardware failure.

    Troubleshooting Steps

    Section titled “Troubleshooting Steps”
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    Topic history
    1. 2026-10-07 Susan Minne Bulk/mechanical change
      Replace individual guide ownership with system technical contacts
      Commit dca5a1a
    2. 2026-09-25 Susan Minne
      Update propulsion-feedback-not-qualified.mdx
      Commit f58b161
    Baseline import
    Initial import into service_docs
    Imported by Matt Burton on 2026-09-25
    [FSW-63227] Document aggregate propulsion feedback preflight error
    Commit e7e5aae
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