# SDR AALA202604156385

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2026
- Submitted: April 16, 2026
- Operation: Air carrier
- Aircraft: [N860NN](https://openairdocs.org/aircraft/N860NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 40583
- Aircraft time: 45,660 hours, 19,658 cycles
- Engine: Cfmint CFM567B243
- Engine time: 46,614 hours, 19,554 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Nr 2 Engine
- Stage of operation: CL
- 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/AALA202604156385

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: SUSPECTED OIL LEAK IN THE NUMBER 2 ENGINE OIL QUANTITY WAS 12 QTS, AFTER TAKE OFF DRAMATICALLY DROPPED TO 9QTS, STAYED AT 9QTS FOR ABOUT AN HOUR. AFTERWARDS, IT THEN DROPPED TO 5QTS. THEN SLOWLY DECREASED BY 1QT EVERY 20 MINUTES. LOWEST OBSERVED WAS 2QT BEFORE LANDING. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT SJU.

---
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.