# SDR SWAA2018052422228

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2018
- Submitted: May 24, 2018
- Operation: Air carrier
- Aircraft: N560WN
- Make and model: Boeing 737790
- Aircraft serial: 30542
- Aircraft time: 59,355 hours, 27,896 cycles
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Electronic Unit
- Part number: 4081600930
- Part serial: 99051203
- Condition: Faulty
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018052422228

## Discrepancy

ON CLIMB OUT NR 1 ENGINE OIL QUANTITY DROPPED TO 20% THEN WENT BETWEEN 22 TO 34% UNTIL LEVEL OFF AT ALTITUDE, THE OIL QUANTITY RETURNED TO NORMAL.  R&R NR 1 DISPLAY ELECTRONIC UNIT PER AMM.

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