# Firebolt: Major incident: Starting/restarting new engines fails

**Summary:** Firebolt reported a major incident preventing new engines from starting or restarting, beginning 2021-06-29 11:30 UTC and lasting 29 min. A fix was implemented at 2021-06-29 11:55 UTC; engine startup was restored and the incident resolved at 2021-06-29 11:59 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2021-06-29 11:30 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/6p2tr3c8rqg6](https://stspg.io/6p2tr3c8rqg6)
- [Company: Firebolt](https://rewindex.com/company/firebolt.md)
- Versions: before (none: first archived) → after incident\_version:147/s110cg8mgvnc@c24a2f846919
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Starting/restarting new engines fails
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2021-06-29 11:30 UTC
```

**5. Added: Resolved time**

```diff
+ 2021-06-29 11:59 UTC
```

**6. Added: Affected components**

```diff
+ Engines, Firebolt Components - Engines
```

**7. Added: Update** (identified) · 2021-06-29 11:30 UTC

```diff
+ We are undergoing engine service issues. Starting/Restarting new engines will fail until the issue is resolved. A fix is expected within the next hour. We will update once resolved.
```

**8. Added: Update** (monitoring) · 2021-06-29 11:55 UTC

```diff
+ A fix has been implemented and currently testing engine startup
```

**9. Added: Update** (resolved) · 2021-06-29 11:59 UTC

```diff
+ The issue is resolved. Engine startup is restored.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2021-06-29 11:30 UTC | Major incident: Starting/restarting new engines fails (this change) | outage |

All Firebolt changes: [timeline](https://rewindex.com/company/firebolt/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i9f869e128800d4 · Markdown: https://rewindex.com/change/i9f869e128800d4.md · JSON: https://rewindex.com/api/v1/changes/i9f869e128800d4 · Generated 2026-10-18T02:55:40.904Z