# FDA Class 2 recall of Butterfly iQ Auto Bladder Volume Tool for lacking 510(k) clearance revision history

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

Incident: [FDA Class 2 recall of Butterfly iQ Auto Bladder Volume Tool for lacking 510(k) clearance](/incidents/recall-2020-02-24-butterfly-network.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption. For the current state of this incident, see the incident page._

## 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.

_Canonical URL: /incidents/recall-2020-02-24-butterfly-network/history. REST: /v1/incidents/19ebb31c-6dce-4fe0-90eb-f98cb3a8d8bf/history. HTML: [/incidents/recall-2020-02-24-butterfly-network/history](/incidents/recall-2020-02-24-butterfly-network/history)._