# SDR P5CA0100568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2001
- Submitted: July 17, 2001
- Operation: Air carrier
- Aircraft: [N850FT](https://openairdocs.org/aircraft/N850FT), registered now
- Make and model: Boeing 747122
- Aircraft serial: 19755
- Aircraft time: 85,368 hours, 21,157 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Control Unit
- Part number: 80080201
- Part serial: 761
- Condition: Failed
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0100568

## Discrepancy

WHEN COMPLYING WITH FCD 35-10, O2 DOOR AND MASK FAILED TO DEPLOY.  REMOVED AND REPLACED FLOW CONTROL UNIT SYSTEM OPS CHECK NORMAL P/N ON 800802-01 ON 0444, P/N OFF 800802-01 S/N OFF 761.

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