# SDR UIEA2026041900218

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2026
- Submitted: April 21, 2026
- Operation: Air carrier
- Aircraft: [N454PA](https://openairdocs.org/aircraft/N454PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30812
- Aircraft time: 98,355 hours, 16,403 cycles
- Engine: Ge CF680C2B1F
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Nr 1 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2026041900218

## Discrepancy

ENG #1 OIL QTY DROPPED TO 1 AFTER T/O,   FOLLOW WITHIN 20 MINS BY ENG OIL PRESS ADVISORY MSG. QRH FOLLOWED, AND ENG #1 WAS SHUT DOWN. WITHIN 15 MINS OF ENG SHUTDOWN,   HYD PRESS SYSTEM 1 CAUTION MSG,  QRH FOLLOWED HYD SYSTEM 1 SHUT DOWN.  REMOVED AND REPLACED #1 ENGINE IAW AMM 71-00-02 AND WO #159258. PERFORMED ENGINE LEAK AND OPS CHECK PER AMM 71-00-00/ 501 TEST 3, 11  12. LEAK AND OPS CHECKED GOOD.

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