# SDR NACA2025081600001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2025
- Submitted: August 19, 2025
- Operation: Air carrier
- Aircraft: N567NC
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 28141
- Aircraft time: 70,081 hours, 12,997 cycles
- Engine: Pwa PW4060
- Engine time: 69,437 hours, 18,172 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Heat Exchanger
- Condition: Loose
- Location: Zone 400
- Stage of operation: NR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA2025081600001

## Discrepancy

#2 ENGINE SHOWS SIGNS OF OIL LEAK. FOUND BNUT ON FUEL OIL HEAT EXCHANGER LOOSE, TIGHTENED B-NUT REF B767 300 AMM 20-41-60 OPS AND LEAK CHECK GOOD.

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