# SDR UIEA2021040200787

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2021
- Submitted: April 2, 2021
- Operation: Air carrier
- Aircraft: [N1373A](https://openairdocs.org/aircraft/N1373A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 27205
- Aircraft time: 103,684 hours, 22,004 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Low
- Location: Apu
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021040200787

## Discrepancy

APU RELIABILITY COLD START ACCOMPLISHED ONT-RFD SAT -59/ FL390/ START UNSUCCESSFUL/ 3 ATTEMPTS. ITEM #3: DURING THE 2ND APU START APU "OIL Q" WENT FROM FULL TO "0.25" IT SUBSEQUENTLY AKO DISPLAYED "ADD" TEMPORARILY.(<P>SERVICED APU OIL IAW AMM 12-00-00. TRANSFERRED TO MDDR 144694 FOR APU COLD SOAK IAW MEL 25-AP-01. CAT N, DUE 01APR22. PLACARD INSTALLED.</P>)

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