# SDR UIEA2021052601180

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2021
- Submitted: May 28, 2021
- Operation: Air carrier
- Aircraft: [N1093A](https://openairdocs.org/aircraft/N1093A), registered now
- Make and model: Boeing 767-36N
- Registry model: [Boeing 767-36N](https://openairdocs.org/model/boeing-767-36n) (OpenAirDocs)
- Aircraft serial: 30111
- Aircraft time: 84,031 hours, 12,517 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Oxygen Mask
- Part number: MC1008109
- Part serial: 105712
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021052601180

## Discrepancy

FIRST OBSERVER SEAT O2 INOP(<P>PLACED ITEM ON DMI 147544 IAW MEL 25-11-02-01A CAT A. DUE 2 FLIGHT DAYS. AUTH: JD 0438L</P><P>CVG, 26MAY, LP 1306002, ITEM M3: REMOVED AND REPLACED IST. OBS O2 MASK ASSY IAW B767 AMM 35-11-51. OPS CHECK GOOD AT THIS TIME. THIS CLEARS DMI 147544. PLACARDS REMOVED. MCC NOTIFIED. T.I.: 1239Z YK.</P>)

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