# SDR AU990034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Engine: Cont TSIO520VB
- Propeller: Mcauly 3AF32C87
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pipe
- Part number: 510011172
- Condition: Cracked
- Location: Hydraulic Sys
- Stage of operation: LD
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU990034

## Discrepancy

(AUS) DURING LANDING, THE PILOT NOTED A STRONG HYDRAULIC OIL SMELL.  INVESTIGATION FOUND THE HYDRAULIC PRESSURE LINE LOCATED IN THE AREA BEHIND THE RIGHT ENGINE FIREWALL WAS TWISTED AND SPLIT.  THE ELBOW FITTING P/N AN837-6 WAS LOOSE IN THE FIREWALL AND TIGHTENING THE NUT HAD NO EFFECT.  THE FITTING WAS REMOVED AND IT WAS DISCOVERED THAT THE WASHER P/N AN960-1016 HAD NOT BEEN PROPERLY LOCATED ON THE FITTING.  PART TC:  10,009.

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