# SDR 98ZZZX3614

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N749CA](https://openairdocs.org/aircraft/N749CA), registered now
- Make and model: Cessna 421C
- Registry model: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Aircraft serial: 421C1239
- System (JASC): [7920 · Engine Oil Distribution (Airframe Furnished)](https://openairdocs.org/jasc/7920)
- Part: Fitting
- Part number: 4810649001
- Condition: Stripped
- Location: Lt Engine
- 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/98ZZZX3614

## Discrepancy

PILOT REPORTED LEFT ENGINE OIL LEAK.  FURTHER INSPECTION REVEALED THE WASTEGATE OIL INLET LINE WAS LOOSE AT THE WASTEGATE OIL INLET BOSS.  IT WAS DETERMINED THAT THE THREADS OF THE BOSS HAD FAILED.  SUBMITTER RECOMMENDED MORE DETAILED INSPECTION OF WASTEGATE OIL LINES AND FITTINGS AT PERIODIC AND ROUTINE INSPECTIONS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.