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Successful Field Repair of a Pioneer 22 Prawler

By: Amber Coogan  |  November 18, 2025

The team completed a successful field repair of a malfunctioning Prawler on the Pioneer 22 cruise. The entire shallow-water mooring was brought on deck, where James Kuo and John Lund of the Woods Hole Oceanographic Institution (WHOI) carried out detailed troubleshooting and on-site repairs to restore the vehicle’s performance.

After the work was completed, the mooring was re-deployed and closely monitored. The system is now operating normally, with data once again streaming back to shore.

Photo credit: Rebecca Travis, WHOI

Photo credit: Rebecca Travis, WHOI

Photo credit: Rebecca Travis, WHOI

Photo credit: Rebecca Travis, WHOI

Photo credit: Rebecca Travis, WHOI

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