# SDR HNAA2023081400308

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2023
- Submitted: August 17, 2023
- Operation: Air carrier
- Aircraft: [N649PP](https://openairdocs.org/aircraft/N649PP), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145234
- Aircraft time: 51,294 hours, 48,149 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A, B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2023081400308

## Discrepancy

DUURING CLIMB AROUND 9000FT LOUD POP HEARD THEN CABIN STARTED TO DEPRESSURIZE...NOTE PACK 1 CURRENTLY ON MEL.  REF LP 289288 SEQ 1 FOUND BLOWN DUCT ON #2 HEAT EXCHANGER. R&R'D DUCT A/C PRESSURIZED CHECK GOOD. #2 PACK OPS CHECK GOOD. OK FOR SERVICE.

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