# SDR UIEA2019092505576

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2019
- Submitted: September 27, 2019
- Operation: Air carrier
- Aircraft: [N1181A](https://openairdocs.org/aircraft/N1181A), registered now
- Make and model: Boeing 767-3Y0
- Registry model: [Boeing 767-3Y0](https://openairdocs.org/model/boeing-767-3y0) (OpenAirDocs)
- Aircraft serial: 26206
- Aircraft time: 86,260 hours, 21,433 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Unknown
- Condition: Malfunctioned
- 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/UIEA2019092505576

## Discrepancy

REF MEL 25-AP-01 APU COLD SOAK START UNSUCCESSFUL - 2 ATTEMPTS, FL 410, SAT -59°C, (APU STARTED - RUN MOMENTARILY THEN "APU FAULT" EICAS & SHUTDOWN). (<P>LP 1223468 - M6: WIND MILLED #1 ENG, PUT APU IN MES MODE AND CHECKED SURGE VALVE POSITION. IT WAS NEAR CLOSED BUT NOT FULLY CLOSED. PERFORMED BITE CHECK AND GOT A LOW OIL PRESSURE BITE. DMI 118222 REMAINS OPEN. REF FIM 49-11 FAULT TREE 966.</P><P>LP 1223470 - ITEM 1: APU RELIABILITY COLD START ACCOMPLISHED ON FLIGHT LEG CVG-ONT SAT 49 C FL 360 ,START SUCCESSFUL ON 2ND ATTEMPT. NOTED BY MX. THIS CLEARS DMI 118222. PLACARDS REMOVED. PERFORM APU BITE PROCEDURE IAW FIM 49-11 FT 958. NO FAULTS NOTED. MCC NOTIFIED. </P>)

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