T4021

STATUS: FIT

Control Panel

Interactive Activity Log

Activity / fault types

OBCU blocking failure · OBCU and MOMA failure · Traction system major fault · EP brakes failure to release · Compressor control major fault · Air leakage · Current Collector (CC) burned/damaged · Derailment alarm · Onboard CCTV monitoring failure · Intercom unreachable · Low performance odometry · Door failure · Too Low Braking alarm · Overspeed alarm · Invalid movement authority · Travel direction discrepancy · Brake failure · Charging time too long alarm · Blank Dynamic Line Maps (DLM) · PA system failure

8/14/2026, 9:01:55 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

8/14/2026, 5:46:57 AM

REQUEST

T4021_RST_DPS_LM2_HVAC SW & SD activity + HV/LV inspection

By: Fitness Report | RST

8/9/2026, 9:01:56 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

8/7/2026, 9:01:56 AM

REQUEST

T4021 Car 1 - AD 04 has blue line during ACES Migration

By: Fitness Report | SIG

8/3/2026, 9:01:56 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

8/2/2026, 1:30:56 AM

REQUEST

T4021_RST_DPN- LM1_ACES WIFI

By: Fitness Report | RST

7/27/2026, 4:41:11 PM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

7/27/2026, 4:41:11 PM

REQUEST

T4021_DPS_LM2 to MWP_RST_HVAC Inspection

By: Fitness Report | RST

7/27/2026, 4:40:45 PM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

7/23/2026, 1:32:56 AM

REQUEST

T4021_DPN_LM2_RST_HVAC Inspection

By: Fitness Report | RST

7/19/2026, 1:31:56 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

7/18/2026, 1:31:56 AM

REQUEST

T4021_RST_P3_PM_Activity_DPS_LM

By: Fitness Report | RST

7/10/2026, 9:02:56 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

7/10/2026, 5:46:56 AM

REQUEST

4021_STB_RST_Mileage control

By: Fitness Report | RST

7/9/2026, 1:31:56 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

7/9/2026, 12:14:15 AM

REQUEST

T4021 FM_MAG Interior Deep Cleaning ND STB

By: Fitness Report | RST

7/6/2026, 9:02:05 AM

RELEASE

RELEASED: Declared FIT by fitness report

By: Fitness Report | N/A

7/6/2026, 1:32:04 AM

REQUEST

T4021 Overspeed alarm

By: Fitness Report | SIG