As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT AND ENGINE START, FWD EQPT VALVE EICAS AFTER START LIGHT REMAINED ILLUMINATED WITH SWITCH IN STBY. CHECK AND APPROVED FOR DEFERRED IAW MEL 21-58-7-2-1 C/W MAINTENANCE PROCEDURES (21-58-7) MBCB 04/10/2026 A/C REMAINS NO ETOPS.