# SDR ASAA2023031642376

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2023
- Submitted: March 16, 2023
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 34,454 hours, 10,832 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Gasket
- Part number: 3351080010
- Condition: Broken
- Location: #2 Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023031642376

## Discrepancy

#2 ENGINE OIL TREND DATA CONTINUES TO SHOW OIL CONSUMPTION TO GREATER THAN EXPECTED, WITH RECENT CONSUMPTION RATE INCREASING. ENGINE POWER RUN REQUIRED. GROUNDED - YES. OIL COVER LEAKING AT THE BASE JUST ABOVE THE OIL RETURN LINE, NOTED GASKET BROKEN UPON REMOVAL. REPLACED OIL COVER AND GASKET REF B737-900 AMM 72-56-00. FOUND OIL NIPPLE ON REAR FACE OF THE NO. 5 BEARING SUPPORT DAMAGED BUT NOT LEAKING, REPLACED PER AMM 72-56-00. REPLACED THE OIL SUPPLY TUBE AS DIRECTED, DESPITE IT HAVING NO DEFECTS, REF AMM 72-56-00. ALL OTHER STEPS COMPLETED WITH NO DEFECTS NOTED. LK AND OPS CKS GOOD.

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