What was found
EXPERIENCED ELECTRICAL FAILURES STARTING WITH FLIGHT RECORDER OFF LIGHT, ACARS, GPWS YAW DAMPENER, CAPTAIN'S HSI AND ADI. NR 1 AC BUS POPPED AFTER LANDING. *S/D* FAULTY R3 (NR 1 TRANSFER BUS) RELAY, REPLACED R3 RELAY. OPS CHECK OK.
- Difficulty date
- March 11, 1999
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N391UA
- Make and model
- Boeing 737322
- Aircraft serial
- 24666
- Engine
- Ge CFM56*
- System (JASC)
- 2450 · AC Power Distribution System
- Part
- Relay
- Part number
- 91252ZC7C4001
- Condition
- Failed
- Location
- Ac Power Dist
- Stage of operation
- CL
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.