# Amazon MK30 delivery drone struck an apartment building in Richardson, Texas; backyard grass fire revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Incident: [Amazon MK30 delivery drone struck an apartment building in Richardson, Texas; backyard grass fire](/incidents/amazon-prime-air-richardson-building-strike-2026.md)

## Recorded posture

- First recorded event: 2026-06-04
- Last material change: 2026-06-04
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-04**: created (source: baseline:arc-g)

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.

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