# SDR AALA202603043631

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2026
- Submitted: March 4, 2026
- Operation: Air carrier
- Aircraft: [N734AR](https://openairdocs.org/aircraft/N734AR), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 31480
- Engine: Ge GE90115B
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Drain Valve
- Condition: Leaking
- Location: Nr 2 Engine
- 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/AALA202603043631

## Discrepancy

AIRCRAFT WAS GROUNDED: FLIGHT DIVERTD TO BSB DUE TO ENGINE OIL QUANITY, EMERGENCY DECLARED AND AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT.    MAINTENANCE FOUND OIL LEAK FROM SELF CLOSING DRAIN VALVE AND VFSG MAST DRAINHOLE. REPLACED SELF CLOSING DRAIN VALVE IAW AMM 70-51-00.

---
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.