# SDR AU001155

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2000
- Submitted: January 4, 2001
- Operation: General aviation
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Engine: Cont GTSIO520N
- Propeller: Mcauly 3FF32C501
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Pipe
- Part number: 51001063
- Condition: Corroded
- Location: Oxygen System
- Part time: 7,471 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU001155

## Discrepancy

(AUS) OXYGEN PIPE CORRODED AND LEAKING IN AREA BEHIND PILOTS SEAT SIDELINING. PIPE CONTAINED PIN HOLE CORROSION IN THE AREAS TOUCHING THE SCAT HOSE.

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