# SDR UIEA2021071901586

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2021
- Submitted: July 28, 2021
- 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
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Switch
- Part number: 38760232
- Part serial: 5591
- Condition: Faulted
- Location: Apu
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021071901586

## Discrepancy

APU DEFERRED PER MCC (INOP)(<P>TRANSFER TO MDDR DMI #150314 IAW B767 DDG MEL 49-11-01A, CAT C, DUE 27JUL21 "M" PROC C/W. </P> / <P>C/W WITH ECM #2021P-233 REF. LOGPAGE 1369494 ITEM 8...REPLACED DE-OIL SOLENOID VALVE.. P/N 3876166-1..S/N 1102  ON APU IAW AMM49-27-08 OPS CKS GOOD...</P> / <P>REFERENCE ITEM 9 THIS LOG PAGE..REPLACED APU OIL TEMP SWITCH IAW AMM 49-27-14 LEAK CKS GOOD. THIS CLEARS MDDR 150314.</P>)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.