Safety Alert

Rig Carrier Drives Off Accidentally

IADCInternational Association of Drilling ContractorsIADC Alert 04-22

Rig Carrier Drives Off Accidentally

Read at IADCOpens the publisher’s page on iadc.org

Summary

A rig mechanic was installing the sixth jack on a parked carrier rig when a supervisor changed the transmission from road to hoist mode. Engine speed rose suddenly and the carrier moved forward unintentionally. Switching back to road mode did not halt it; it stopped after striking a gate hut.

Topics

About This Record
Publisher
International Association of Drilling Contractors
Type
Safety Alert
Reference
IADC Alert 04-22
Date
3 May 2004
Topic
Mechanical Failure
Activity
Vehicles and Driving
Link
Checked , working
Record
iadc-alert-04-22 · added 3 September 2026

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