# SDR HALA2017012000011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2017
- Submitted: January 23, 2017
- Operation: Air carrier
- Aircraft: [N475HA](https://openairdocs.org/aircraft/N475HA), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55121
- Aircraft time: 24,613 hours, 58,266 cycles
- System (JASC): [2422 · AC Inverter](https://openairdocs.org/jasc/2422)
- Part: Inverter
- Condition: Defective
- Location: Electrical Sys
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA2017012000011

## Discrepancy

WHEN PERFORMING EMERGENCY PWR TEST "EMER AC BUS OFF" DISPLAYED. REMOVED AND REPLACED EMERGENCY AC BUS SENSING AND EMERGENCY POWER RELAY PER 24-24-00 OPS CHK GOOD PER AMM 24-24-00. EMERGENCY POWER TEST FAILED AC EMERGENCY BUS NOT POWERED. REMOVE AND REPLACE EMERGENCY INVERTER PER AMM 24-24-01-400-801. OPS CHK GOOD. OK FOR SERVICE. OFF: PN: 1-002-0102-0752 SN: GD000196 ON: PN: 1-002-0102-0752 SN: GD000242.

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