A320 Dual Hydraulic Failure: The PTU Mirage That Catches Every Crew

A320 captain in IMC – dual hydraulic failure, degraded authority, elevated workload By Paul Toensing  |  Custom GPT Solutions  |  April 2026  |  ~8 min read Quick Answer The A320 Power Transfer Unit (PTU) transfers hydraulic power – not fluid – between the GREEN and YELLOW systems. It operates automatically when the differential pressure between […]

A320 EGPWS Mode 2 vs Mode 4: The Configuration Trap Pilots Miss

A320 cockpit approach – night conditions, terrain proximity By Paul Toensing  |  Custom GPT Solutions  |  April 2026  |  ~8 min read Quick Answer The A320 EGPWS deliberately reduces its terrain protection when you configure for landing. Mode 2 drops from a two-tier system (TERRAIN caution + PULL UP warning) to caution-only with gear down […]