Brakes - Friction/Service
Pneumatic Brake unable to release (turning isolation valve for EP brakes on BCU)
Manual Bogie (brake cylinder)
isolation required,
1 bogie isolated, remain in service EP, 2 bogies isolated remove from service, detrain passengers and return to Wiri, max speed 90 kph.
Complete deflation of any airbags
Speed restriction of 80kph and unit to return to Wiri EP