# SDR AALA202609044092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2026
- Submitted: September 4, 2026
- Operation: Air carrier
- Aircraft: [N913NN](https://openairdocs.org/aircraft/N913NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29571
- Aircraft time: 40,091 hours, 17,555 cycles
- Engine: Cfmint CFM567B20
- Engine time: 39,959 hours, 17,594 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Packing
- Part number: J221P018
- Condition: Worn
- Location: Engine Oil
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202609044092

## Discrepancy

AIRCRAFT WAS GROUNDED: WHILE PERFORMING TROUBLESHOOTING WORK CARD 08L00021001(SMOKE ODOR FUMES INITIAL) FOUND #2 ENGINE OIL LEAK BETWEEN FAN SPINNER AND BOOSTER SECTION (E NG. CORE).  FOUND OIL INSIDE THE BOOSTER SECTION AND TR COOL STREAM SECTION.  REMOVED SPINNER. OIL LEAK VERIFIED.  N1 SPEED SENSOR ORING REPLACED IAW AMM 77-11-01.

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