# SDR UIEA2026050500294

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2026
- Submitted: May 5, 2026
- Operation: Air carrier
- Aircraft: [N487MC](https://openairdocs.org/aircraft/N487MC), registered now
- Make and model: Boeing 747-45EF
- Registry model: [Boeing 747-45EF](https://openairdocs.org/model/boeing-747-45ef) (OpenAirDocs)
- Aircraft serial: 30609
- Aircraft time: 103,320 hours, 18,774 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Transducer
- Part number: 10015748
- Part serial: 12942960
- Condition: Faulted
- Location: Oxygen Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2026050500294

## Discrepancy

CREW OXYGEN LOW IN FLIGHT.  FOUND 2 EA CONNECTORS AT BOTTLE LOOSE, SECURED AND VERIFIED INDICATION WAS OPERATIONAL. DEFERRED O2 INDICATION SYSTEM AS PRECAUTION. TRANSFER TO DMI 252018 PER MEL 35-11-02.  R/R CREW LOWER TRANSDUCER AND C/O LEAK CHK, RESULT SATIS IAW AMM 35-41-08 & IPC 35-11-03-01. CREW OXY INDICATION NORMAL.

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