B737 Next Generation Undifferentiated
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 147
Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Loss Of Aircraft Control
Flight Crew Regained Aircraft Control; General Maintenance Action
Airport; Human Factors; Procedure
Aircraft was on push back when tug diver stated 'oh @#$%' I inquired what 'oh @#$%' meant. At that that point the driver called 'break away; break away.' I immediately stopped the aircraft and set brake. I advised 'break set; pressure normal.' The driver informed me that another ramper failed to secure the clamps on the tow bar and once the push began the aircraft was freewheeling. I entered an ELB (Electronic Logbook) report and advised Maintenance that an inspection was needed. Maintenance visually inspected and cleared aircraft for operations. Push back continued without further incidents.
B737 Captain reported ramper failed to secure the tow bar resulted in the aircraft freewheeling.