# SDR HNAA2025071400468

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2025
- Submitted: July 14, 2025
- Operation: Air carrier
- Aircraft: [N647AE](https://openairdocs.org/aircraft/N647AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145222
- Aircraft time: 54,418 hours, 51,913 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Inverter
- Part number: E008390008
- Part serial: 390008
- Condition: Abnormal
- Location: Recirc Fan
- Part time: 34,346 hours, 32,219 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2025071400468

## Discrepancy

DURING CLIMB TO 10,000 FEET LOUD WHINING NOISE FROM INSTRUMENT  PANEL.  P/C C/B F-5 . C/W MNT PROCEDURE.  FWD ELEC COMP BAY RECIRC FAN.  R&R RECIRC FAN #2 INVERTER IAW AMM 21-26-03. OPS CHECK GOOD IAW AMM 21-26-00. A/C OK FOR SERVICE AT THIS TIME. CLEAR MEL 21-11-3

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