# SDR P5CA9600251

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N858FT](https://openairdocs.org/aircraft/N858FT), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20109
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Flow Contl Unit
- Part number: 80080208
- Condition: Leaking
- Location: Pax Oxy System
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA9600251

## Discrepancy

DURING MAINTENANCE, FOUND PASSENGER O2 LOW.  FOUND ELECTRO-PNEUMATIC FLOW CONTROL UNIT LEAKING INTERNALLY.  REPLACED SAME IAW MM 35-21-00.  ALSO, REPLACED AFT PASSENGER O2 BOTTLE, (P/N 801307-00), (S/N 962110) NO LEAKS NOTED.

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