# SDR DALA2023060204427

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2023
- Submitted: June 3, 2023
- Operation: Air carrier
- Aircraft: [N963AT](https://openairdocs.org/aircraft/N963AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55024
- Aircraft time: 54,630 hours, 38,027 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023060204427

## Discrepancy

SHIP 9522 -MISC/DE- DURING APPROACH FOR LANDING, THE "BUS DC R OFF" INDICATION ILLUMINATED. WHICH WAS FOLLOWED BY 15 OTHER DISCREPANCY INDICATIONS. THE QRH WAS COMPLIED WITH AND THE CREW DECLARED EMERGENCY DUE TO THE IMPENDING NO FLAP AND NO SLAT LANDING. A HOT BRAKE CONDITION EXISTED AFTER THE LANDING. CORRECTIVE ACTION: MAINTENANCE FOUND THAT THE RIGHT PCDU CIRCUIT BREAKER HAD TRIPPED. THE PDCU WAS REPLACED AND THE CONTACTORS WERE CLEANED, THE DC BUS FEED C/B WAS REPLACED, AND THE MESSAGES WERE ALL CLEARED. A HIGH-ENERGY STOP INSPECTION RESULTED IN NO FINDINGS AND THE AIRCRAFT WAS RETURNED TO SERVICE. (LP #4716304)

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