# SDR CALA2025070306204

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2025
- Submitted: July 3, 2025
- Operation: Air carrier
- Aircraft: [N17301](https://openairdocs.org/aircraft/N17301), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67554
- Aircraft time: 8,379 hours, 2,885 cycles
- Engine: Cfmint LEAP1B28
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Warning Message
- Condition: False Activation
- Location: Zone 400
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025070306204

## Discrepancy

BLDS OFF TAKEOFF. WHEN TRNSFR BACK TO ENG BLD PER CHKLST NO ENG BLD PRSSR.APU/PACKS NORMAL.   PER T/S IAW FIM 36-00 / 836 AND 837. IASC  IS KNOWN TO TRIGGER THIS MAINT MSG AS A NUISANCE FAULT DUE TO A MOMENTARY FALSE HIGH TEMPERATURE MEASUREMENT. PERFORM INIT EVALUATION AND RESET FAULT. NO FURTHER HISTORY RECORDED. FLT CREW PERFORMED ENG IDLE RUNS & FOUND BLEED SYSTEM OPE RATING NORMAL. NO FURTHER FAULTS STORED IN OMF AFTER ENG RUNS. A/C OK TO CONT.

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