# SDR KC8A201808282718

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2018
- Submitted: August 28, 2018
- Operation: Air carrier
- Aircraft: [N229CK](https://openairdocs.org/aircraft/N229CK), registered now
- Make and model: Amd FALCON20
- Aircraft serial: 229
- Aircraft time: 35,755 hours, 28,678 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Relay
- Part number: 2525AM
- Part serial: 482
- Condition: Inoperative
- Location: Electrical
- Stage of operation: DE
- How discovered: O
- Nature of condition: H, G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KC8A201808282718

## Discrepancy

LOSS OF AUX BUSS ELECTRICAL POWER. LANDING GEAR EXTENDED USING EMERGENCY PROCEDURES. FOUND AUX BUSS RELAY, 9-P, FAILED OPEN RESULTING IN AUX BUSS POWER LOSS. REPLACED THE RELAY, PERFORMED RETRACTION AND SYSTEMS CHECKS IAW THE MAINTENANCE MANUAL.

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