# SDR UIEA2020021320244

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2020
- Submitted: February 17, 2020
- Operation: Air carrier
- Aircraft: [N1381A](https://openairdocs.org/aircraft/N1381A), registered now
- Make and model: Boeing 767316
- Aircraft serial: 27615
- Aircraft time: 87,957 hours, 19,037 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Switch
- Part number: 43367310044219
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020021320244

## Discrepancy

APU ISOLATION VALVE SWITCH SHOWS FLOW R+R INDICATION WHEN PUSHED IN AND OUT.(<P>THIS ITEM DEFERRED UNDER MEL 49-11-01-01, CAT "C", DUE DATE 21 FEB 20. MEL #124545. PLACARD INSTALLED, MX CONTROL NOTIFIED.</P><P>LP 1068786 - M2: REMOVED AND REPLACED KORRY SWITCH SUB ASSY IAW B767 AMM 33-16-02. FUNCTION COMPLIED WITH, OPS CHECK GOOD. THIS CLEARS MDDR 124545.</P>)

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