# SDR YENA20120126422

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2012
- Submitted: January 27, 2012
- Operation: Air carrier
- Aircraft: N203JB
- Make and model: Emb ERJ 190-100 IGW
- Registry model: [EMB ERJ 190-100 IGW](https://openairdocs.org/model/embraer-erj-190-100-igw) (OpenAirDocs)
- Aircraft serial: 19000023
- Aircraft time: 16,579 hours, 10,131 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Line
- Condition: Disconnected
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA20120126422

## Discrepancy

FLT 1211 BOS-BUF, AIR RETURN TO BOS DUE TO A BLEED 1 OVERPRESSURE ON EICAS IMMEDIATELY AFTER TAKEOFF.  CREW COMPLIED WITH QRH PROCEDURES AND ISOLATED THE BLEED.  THE TECHNICIAN ON T/S FOUND NR 1 BLEED OVERPRESSURE SWITCH MUSCLE LINE DISCONNECTED.  RE-INSTALLED MUSCLE LINE PER FIM 36-14-00-810-808-A00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.