# SDR DALA2021092005590

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2021
- Submitted: September 20, 2021
- Operation: Air carrier
- Aircraft: N320US
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 213
- Aircraft time: 88,043 hours, 40,181 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: None
- Condition: None
- Stage of operation: IN
- 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/DALA2021092005590

## Discrepancy

SHIP 3220 DURING PSU ACTUATION TEST MULTIPLE PSUS DID NOT DROP. CORRECTIVE ACTION: REPACKED PSU'S THAT DID NOT TEST AND PERFORMED TEST AGAIN. ALL PSU'D OPERATED NORMALLY EXCEPT FIRST CLASS LAV. R/R PSU ASSY IN FIRST CLASS LAV PER A320 AMM 25-25. PSU TEST PASS. (8073121)

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