# SDR YENA2023042000414

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2023
- Submitted: April 20, 2023
- Operation: Air carrier
- Aircraft: [N989JT](https://openairdocs.org/aircraft/N989JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07924
- Aircraft time: 21,513 hours, 4,227 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Unknown
- Condition: Unknown
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2023042000414

## Discrepancy

DURING HEAVY MAINTENANCE: 36WR OXYGEN GENERATOR FAILED MANUAL DROP TEST; PERFORMED TSM 35-23-00-81-807A AND WIRING TERMINAL BLOCK 7372VT 141 WIRING NO 3523-1114 POSITION K WAS FOUND LOOSE IAW ESPM 20-52-11 AMM 35-73-06 PERFORMED CONNECTED CORRECTLY WIRING ON TERMINAL BLOCK 7312VT141 WIRING NO 3523-114 IAW AMM 35-23-06 AND ESPM 70-44-51 AND PERFORMED OPERATIONAL TEST CHECK OF MANUAL MASK RELEASE IAW AMM 35-23-00-710-001-A TEST IS OK.'

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