# SDR UIEA2021081201788

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 2021
- Submitted: August 16, 2021
- Operation: Air carrier
- Aircraft: [N1489A](https://openairdocs.org/aircraft/N1489A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 27206
- Aircraft time: 110,019 hours, 22,065 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Valve
- Part number: 97980612
- Part serial: 293
- Condition: Failed
- Location: Apu Pneumatic Sy
- Stage of operation: TX
- 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/UIEA2021081201788

## Discrepancy

APU PNEUMATICS INOP(<P>ITEM TRANSFERRED TO MDDR 151753 PER MEL 49-11-01-01, CAT C. DUE DATE 22-AUG21.</P> / <P>LOGPAGE 1402488 ITEM 4: PERFORMED FIM 49-11 F/T 958, FOUND REVERSE FLOW FAULT DISPLAYED. REMOVED AND REPLACED SURGE CONTROL VALVE. OPS CKS GOOD. THIS CLEARS DMI 151753, PLAC REMOVED.</P>)

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