# SDR DALA2017091806954

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2017
- Submitted: September 18, 2017
- Operation: Air carrier
- Aircraft: N703DN
- Make and model: Boeing 777232
- Aircraft serial: 32222
- Aircraft time: 43,491 hours, 3,914 cycles
- Engine: Ge GE90110B1
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Seal
- Condition: Leaking
- Location: Gearbox
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017091806954

## Discrepancy

RETURNED TO DEPARTURE DUE TO THE LEFT ENGINE OIL QUANTITY DECREASING.   REPLACED THE IDG GEARBOX SEAL.

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