Commercial Fixed Wing
Communication Breakdown
Ground Event / Encounter Loss Of Aircraft Control; Ground Event / Encounter Vehicle
Aircraft Aircraft Damaged; General Maintenance Action; General Flight Cancelled / Delayed
Equipment / Tooling; Procedure
While moving [an] aircraft; the shear pin broke when the main gear struck the steel plates they rested on. Upon removing the tow bar; the push back began backing slowly to reposition and struck the cleaning van that had parked behind it. The aircraft beacons were on because we had not completed the move.
Ground Personnel reported shear pins breaking on tow bar; resulting in the aircraft striking a parked vehicle.