# SDR KCSA20260619733

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2026
- Submitted: June 20, 2026
- Operation: Air carrier
- Aircraft: [N706CK](https://openairdocs.org/aircraft/N706CK), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 27073
- Aircraft time: 89,491 hours, 15,484 cycles
- Engine: Pwa PW4056
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Low
- Location: Zone 400
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA20260619733

## Discrepancy

ON DESCENT NOTICED STRONG ODOR OF OIL ON UPPER DECK AND MAIN DECK CREW REPORTED LOW OIL ON ENG 4,  INDICATED 4 QUARTS.   PERFORMED CONDITIONAL INSPECTION OF #4 ENG IAW FIM 21-00 TASK 810 NO EXTERNAL LEAKS FOUND. SERVICED ENG OIL IAW AMM 12-13-03.

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