# SDR UIEA2019052904343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2019
- Submitted: May 29, 2019
- Operation: Air carrier
- Aircraft: [N640GT](https://openairdocs.org/aircraft/N640GT), registered now
- Make and model: Boeing 767-3S1
- Registry model: [Boeing 767-3S1](https://openairdocs.org/model/boeing-767-3s1) (OpenAirDocs)
- Aircraft serial: 25221
- Aircraft time: 88,420 hours, 18,792 cycles
- System (JASC): [2433 · DC Rectifier/Converter](https://openairdocs.org/jasc/2433)
- Part: Relay
- Part number: BACR13CJ2
- Condition: Faulty
- Location: Electrical Sys
- Stage of operation: IN
- How discovered: C
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019052904343

## Discrepancy

STANDBY BUS OFF EICAS MESSAGE ON GROUND. (<P>ACCOMPLISHED FIM 24-33 FT 803 AND FOUND AC STBY BUS OFF RELAY K138 AT FAULT. SWAPPED WITH RELAY K835.- AFT LAV EXH FAN 1 AND PERFORMED STBY POWER OPS TEST PER AMM 24-33-00. OPS CHECK OK. ALSO PERFORMED AFT LAV EXH FAN 1 TEST PER AMM 21-26-01 AND OPS OK.</P>)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.