# SDR J7SA2026100200527

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2026
- Submitted: October 2, 2026
- Operation: Air carrier
- Aircraft: [N578FX](https://openairdocs.org/aircraft/N578FX), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20601
- Aircraft time: 10,951 hours, 6,534 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 3471A020000
- Part serial: 00123
- Condition: Seized
- Location: Zone 100
- Stage of operation: LD
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/J7SA2026100200527

## Discrepancy

AFTER ADVANCING POWER DURING A GO AROUND, A BURNING SMELL EMANATED FROM THE VENTS. ADDITIONALLY, A LOUD WHISTLING SOUND WAS HEARD. THE ECS WOULD NOT BLOW COLD. FOUND AIR CYCLE MACHINE TURBINE SEIZED. REPLACED ACM IAW BOMBARDIER CH 350 AMM 21-52-13. AIR CONDITIONING SYSTEM OP CHECKS GOOD IAW 21-52-00. INTERMEDIATE BLEED SYSTEM LEAK CHECKS GOOD IAW 36-11-00. NO BURNING SMELL PRESENT.

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