# SDR UPS03441151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2003
- Submitted: September 3, 2003
- Operation: Air carrier
- Aircraft: [N676UP](https://openairdocs.org/aircraft/N676UP), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20101
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Regulator
- Condition: Inoperative
- Location: Oxygen System
- 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/UPS03441151

## Discrepancy

02 REGULATOR DOES NOT SHOW FLOW INDICATION IN NORMAL/ON POSITION     R/R S/O REGULATOR ASSY, IAW MM 35-11-07 OP CKD OK

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