# SDR 98ZZZX3584

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N406EV](https://openairdocs.org/aircraft/N406EV), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 27898
- System (JASC): [7920 · Engine Oil Distribution (Airframe Furnished)](https://openairdocs.org/jasc/7920)
- Part: Switch
- Part number: 1339M69401
- Condition: Leaking
- Location: Engine Oil
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX3584

## Discrepancy

FAILED TO SECURE THE TUBE B-NUT OF ENGINE LOW OIL PRESSURE SWITCH IN ENGINE SHOP THAT CAUSED NR 2 ENGINE OIL LEAK AND OIL QUANTITY DROP DOWN TO 4 QUARTS AND PILOT SHUT DOWN NR 2 ENGINE DURING FLIGHT ROUTE OF SFO/TPE, ON 8-14-98.  SUBMITTER SUGGESTED SECURING AND DOUBLECHECKING ALL B-NUTS OF TUBE BEFORE ENGINE SHOP-OUT.

---
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.