Narrative:

Climbing through the mid-20s; we received a bleed 1 leak EICAS message. After accomplishing the QRH procedure we leveled at fl 310. Approximately 10-minutes after the first EICAS message; we received a bleed-2 leak message. The cabin altitude began climbing at approximately 500-FPM. We requested and received an immediate descent to 10-thousand. Fortunately the cabin altitude did not climb any faster than 500 FPM; and the highest cabin altitude displayed was 10;300 ft. After accomplishing the appropriate QRH procedures; dispatch and I made the decision to divert to ZZZ1. Maintenance operations reports that leaks were discovered on both bleed 1 and 2 precoolers. The fact that both bleed precoolers would fail within minutes of each other may be a random event; but it could also indicate a design or manufacturing defect. This component needs to be re-evaluated from an engineering standpoint.

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Original NASA ASRS Text

Title: Captain reports a BLEED-1 LEAK EICAS message appeared in their ERJ-190 aircraft while climbing through the mid 20s; followed by a BLEED-2 LEAK EICAS message ten minutes later. Flight crew diverted. Maintenance discovered leaks on both Bleed-1 and 2 Precoolers. Captain questions if a design or manufacturing defect exists in precoolers.

Narrative: Climbing through the mid-20s; we received a BLEED 1 LEAK EICAS message. After accomplishing the QRH procedure we leveled at FL 310. Approximately 10-minutes after the first EICAS message; we received a BLEED-2 LEAK message. The Cabin Altitude began climbing at approximately 500-FPM. We requested and received an immediate descent to 10-thousand. Fortunately the Cabin Altitude did not climb any faster than 500 FPM; and the highest cabin altitude displayed was 10;300 FT. After accomplishing the appropriate QRH procedures; Dispatch and I made the decision to divert to ZZZ1. Maintenance Operations reports that leaks were discovered on both Bleed 1 and 2 Precoolers. The fact that both Bleed Precoolers would fail within minutes of each other may be a random event; but it could also indicate a design or manufacturing defect. This component needs to be re-evaluated from an Engineering standpoint.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.