# SDR ASAA2020052832764

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2020
- Submitted: May 28, 2020
- Operation: Air carrier
- Aircraft: [N513AS](https://openairdocs.org/aircraft/N513AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35192
- Aircraft time: 43,951 hours, 13,029 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7920 · Engine Oil Distribution (Airframe Furnished)](https://openairdocs.org/jasc/7920)
- Part: Valve
- Part number: 3404002030
- Part serial: YT1352229
- Condition: Leaking
- Location: Oil System
- Part time: 39,702 hours, 13,410 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020052832764

## Discrepancy

DUE TO RECENT REPORT OF 7 QUARTS OIL ADD TO THE NR 2 ENGINE WHILE THE A/C IS IN STORAGE.  IT IS SUSPECTED THAT THE ENGINE MAY BE OVER-SERVICED DUE TO A LEAKING ANTI-LEAK VALVE AND LUBE UNIT SCAVENGE ABILITY.  GROUNDED - YES. REMOVED AND REPLACED OIL ANTI-LEAK VALVE REF AMM 79-21-09 ON NR 2 ENGINE.  LEAK CHECK GOOD.

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