# SDR NACA2019072100089

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2019
- Submitted: July 24, 2019
- Operation: Air carrier
- Aircraft: N379CX
- Make and model: Boeing 767323
- Aircraft serial: 25199
- Aircraft time: 99,384 hours, 16,208 cycles
- Engine: Ge CF6*
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Control Valve
- Part number: 97980612
- Part serial: 1518C
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA2019072100089

## Discrepancy

APU SURGE PERFORM ECU TEST: REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01 (ETOPS SS).  WORKED DISCREPANCY ON NAC WO 116376, NR-00002.

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