# SDR SIMA20240308001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2024
- Submitted: March 10, 2024
- Operation: Air carrier
- Aircraft: [N237NN](https://openairdocs.org/aircraft/N237NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000575
- Aircraft time: 19,304 hours, 12,876 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Pressure Switch
- Part number: 8209734
- Condition: Failed
- Location: Bleed Air Sys
- 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/SIMA20240308001

## Discrepancy

BLEED 2 OVERPRESSURE ON TAKE OFF UNABLE TO CLEAR PER QHR AND MEL 21-44 FOLLOWED QRH RETURN TO DFW. NO EMERGENCY DECLARED. DEFERRED BLEED 2, C/W MTX PROCEDURES. RAR BLEED 2 OVERPRESSURE SWITCH IAW AMM 36-14-01. OPS CHECK GOOD.MEL 3601 RESTORED. MTX ACTIONS CW.

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