# SDR NACA2025071000001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2025
- Submitted: August 1, 2025
- Operation: Air carrier
- Aircraft: [N566NC](https://openairdocs.org/aircraft/N566NC), registered now
- Make and model: Boeing 767-3BG
- Registry model: [Boeing 767-3BG](https://openairdocs.org/model/boeing-767-3bg) (OpenAirDocs)
- Aircraft serial: 30566
- Aircraft time: 78,361 hours, 20,248 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Seal
- Condition: Deteriorated
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA2025071000001

## Discrepancy

LEFT & RIGHT HEAT EXCHANGERS INTERAL SURFACE FOAM SEALS FOUND WORN.  REMOVED AND REPLACED LT & RT HEAT EXCHANGERS INTERNAL SURFACE FOAM SEALS IAW CARD 21-017-00-01

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