# SDR CALA2026081718687

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2026
- Submitted: August 17, 2026
- Operation: Air carrier
- Aircraft: [N71108](https://openairdocs.org/aircraft/N71108), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 68654
- Aircraft time: 206 hours, 22 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Bpsu
- Part number: 7000051H03
- Part serial: 3312
- Condition: Faulted
- Location: Left
- Part time: 195 hours, 21 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026081718687

## Discrepancy

ON FLIGHT 901, SFO-LHR,   CABIN CREW WERE BEING CAUTIOUS DUE TO RECENT EVENT ON DEPARTURE. ODOR WAS FOOD RELATED, & WENT AWAY WITHIN A FEW SECONDS AFTER TAKE OFF. ODOR DIDN`T REOCCUR, FOUND BPCU ON LP 9960550, WHICH WAS REMOVED AND REPLACED DUE TO FAILURE. COMPLETED CONDITIONAL INSPECTION DMC-B787-05-51-99A-282A-A.  OK TO CONTINUE.  ELECT BUSS POWER CTRL UNIT,  LEFT BUSS POWER CONTROL UNIT (BPCU) INOPERATIVE. DB 24 BPCU GATEWAY OPS (RT) UNIT, BUSS POWER OFF 78-2422-9-0002, 3312 ON 78-2422-9-0002, 0270 UNIT, BUS POWER OFF 78-2422-9-0002, 3312 ON 0000, MAT SHOWS MAINT MESSAGE 24-14632 ACTIVE & LATCHED. LT BPCU R & R IAW AMM DMC-B787-A-24-41-05-00A-720A-A.   OPS NORMAL AND FAULTS CLEARED.

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