What was found
WHEN #1 ENGINE WAS SHUTDOWN FOR SINGLE ENGINE TAXI THE #1 HYDRAULIC MAIN AND STANDBY SYSTEMS PRESSURE WENT TO ZERO. CREW HAD TO USE PARKING BRAKE TO STOP A/C. REPLACED CONTACTOR 2421-K2.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN #1 ENGINE WAS SHUTDOWN FOR SINGLE ENGINE TAXI THE #1 HYDRAULIC MAIN AND STANDBY SYSTEMS PRESSURE WENT TO ZERO. CREW HAD TO USE PARKING BRAKE TO STOP A/C. REPLACED CONTACTOR 2421-K2.