# SDR CALA2025020602223

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2025
- Submitted: February 6, 2025
- Operation: Air carrier
- Aircraft: [N834UA](https://openairdocs.org/aircraft/N834UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1420
- Aircraft time: 72,319 hours, 32,169 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 006773
- Condition: Discharged
- Location: Zone 200
- Part time: 52,282 hours, 25,573 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025020602223

## Discrepancy

OPERATIONAL CHECK OF CABIN EMERGENCY LIGHTS {A3NB-33-3-6012} - EPSU UNIT AFT L 33-51-38 RPLCD EPSU AND NEW BATT, NO HELP. SLAVED IN NEW EPSU AND NEW BATT, NO HELP, RESULTS IN NO COMM AT CIDS PANEL TEST. PLEASE VERIFY PROPER EPSU PART NUMBER IS CURRENTLY INSTLD. NO TIME 2 EACH CENTER CEILING PANELS RMVD FOR ACCESS BELOW UNIT PARTS INFO. VERIFIED EFFECTIVITY WITH ENGINEER. P/N3214-62-10 IS NOT VALID REF IPC 33-51-04-07 ITEM 10A AND 10E. R/R PSU (13WL) REF AMM 33-51-38. OPC GOOD. NO FURTHER DEFECTS NOTED.

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