# SDR DALA2021120607518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2021
- Submitted: December 6, 2021
- Operation: Air carrier
- Aircraft: [N351DN](https://openairdocs.org/aircraft/N351DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8251
- Aircraft time: 9,245 hours, 4,121 cycles
- System (JASC): [7900 · Engine Oil System (Airframe Furnished)](https://openairdocs.org/jasc/7900)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021120607518

## Discrepancy

SHIP 3051 AT CRUISE NOTED #1 ENGINE OIL DECREASING FROM 18 QUARTS TO 8 QUARTS AT A RATE OF 1 QUART PER 10 MINUTES. CONSULTED WITH MC AND DIVERTED TO ATL. CORRECTIVE ACTION: REMOVED ENG 1 IDG PER A321 AMM 24-21. REMOVED AND REPLACED IDG CARBON SEAL AND FACE PLATE. FOUND CARBON SEAL PACKING MISSING AND FACEPLATE SEAL INSTALLED BACKWARDS. DONE IAW A 321 AMM 72-63. RE-INSTALLED #1 ENG IDG PER A321 AMM 24-21. (8148570)

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