# SDR DXTA2021081646890

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2021
- Submitted: August 16, 2021
- Operation: Air carrier
- Aircraft: [N328QS](https://openairdocs.org/aircraft/N328QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500175
- Aircraft time: 6,426 hours, 5,057 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 645OLS00
- Part serial: 001929
- Condition: Defective
- Location: Emergency Lights
- Stage of operation: NR
- 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/DXTA2021081646890

## Discrepancy

CABIN EMERG LIGHT: IN FLIGHT EMER LT NOT ARM  YELLOW CAS MESSAGE CAME ON INTERMITTANTLY. EMERGENCY LIGHTING CAME AND STAYED ON WITH THE SWITCH IN ARM. // SIGNOFF // CW FIM (4885) » 33 LIGHTS» FIM-4885 - 33-50-00-810-801-A. EMERGENCY LIGHTS INADVERTENTLY OPERATIVE AND FOUND BOTH EMER BATTS TO BE FAULTY, PLACED BATT'S ON ORDER. REMOVED FWD EMER BATT PT# 645OLS-00 SN 001929 AND INSTALLED NEW UNIT PTLL7645OLS-00 SN 005477 REMOVED AFT EMER BATT PT# 645OLS-00 SN 001257 AND INSTALLED NEW UNIT PTLL 745OLS-O0 SN 005474 IA W EMB-505 AMM CH 33-52-0 I /400, OP'S CK GOOD. NO DEFECTS NOTED AT THIS TIME.

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