# SDR UIEA2019071204738

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2019
- Submitted: July 18, 2019
- Operation: Air carrier
- Aircraft: [N1439A](https://openairdocs.org/aircraft/N1439A), registered now
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 28495
- Aircraft time: 69,831 hours, 16,309 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Bleed Air Sys
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019071204738

## Discrepancy

NO DUCT PRESSURE DURING APU OPERATION.(<P>TRANSFERRED TO MDDR 114602 PER 49-11-01-01 CAT C DUE 21JUL19 VALVE LOCKED OUT PER DDG 36-11-01.</P><P>LP 1080383 - M2: PUT THE AIRPLANE BACK IN ITS USUAL CONFIGURATION. PERFORMED FIM 36-10 FAULT TREE 839. NO FAULTS NOTED. RAN BOTH PACK AIR VALVES AND DRY MOTORED AN ENGINE WITH NO FAULTS. APU BLEED OPERATES AS NORMAL. SEE ITEM 3</P><P>LP 1080383 - M3: PER CUSTOMER REQUEST, R&R APU ECU IAW AMM 49-61-05. OPS CHECK GOOD. THIS CLEARS DMI 114602. PLACARDS REMOVED. NO OTHERS DEFECTS NOTED AT THIS TIME.</P>)

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