B737 Undifferentiated or Other Model
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Total 20000; Flight Crew Type 8815
Human-Machine Interface
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Flight Crew Became Reoriented; Flight Crew Overcame Equipment Problem; Flight Crew Landed As Precaution; Flight Crew FLC Overrode Automation; Flight Crew Diverted
Aircraft; Weather; ATC Equipment / Nav Facility / Buildings
Cascading systems failure in which QRH does not address. Also iPad QRH did not operate. No Altimeter and Airspeed VVI indicators were reliable with over 200+ knots difference. VNAV inoperative. ENG light illuminated. Flight Control lights illuminated. IMC at night with severe thunderstorms in all phases of flight path. Unable to land on primary runways in use due to GPS/RNAV only approaches without VNAV. Unable to land at alternate airport due to intermittent loss of electrical power for raw data approach and runway lights. Landed with tailwinds exceeding 20 knots; [and] only option on a raw data approach with ground based ATC Radar assisting with airspeed and altitude callouts every minute until touchdown. Maintenance BITE test indicated dual Air Data computer failure. I experienced the same exact scenario on a different aircraft with [reports] filed.
B737 Captain reported cascading system failures and intermittent electrical failures.