# SDR HALA2009010700008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2009
- Submitted: January 8, 2009
- Operation: Air carrier
- Aircraft: N587HA
- Make and model: Boeing 767-300
- Registry model: [Boeing 767-300](https://openairdocs.org/model/boeing-767-300) (OpenAirDocs)
- Aircraft serial: 33421
- Aircraft time: 24,167 hours, 4,624 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Relay
- Condition: Failed
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA2009010700008

## Discrepancy

ETOPS SIGNIFICANT SYS - FMC MESSAGE EICAS MESSAGE "FMC L OUTPUT LOSS" DISPLAYED ON MCDU.  T/S AND FOUND RELAY K757 AND LT YSM TO BE BAD.  REPLACED K757 RELAY, LT YSM,  RT YSM,  LT IRU, IRU, CVR, FDAMS DFDAU, VOR/MKR RECIEVER,  ATC TRANSPONDER, AND DME.  PERFORMED GOOD OPS TEST OF ALL REPLACED LRU'S. PERFORMED OPS TEST OF LT AND RT FMC IAW MM 34-61-00.

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