EMB ERJ 170/175 ER/LR
Maintenance Airframe; Maintenance Powerplant
Fatigue; Situational Awareness
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
General Flight Cancelled / Delayed; General Maintenance Action
Aircraft; Chart Or Publication; Human Factors
I was tasked with the Functional Check of the Number 1 Engine Low Stage Bleed Check Valve. On the re-install of the valve; I accidentally oriented it backwards and installed it. After it was put back together we went to the blast wall to run the engine. On the first engine run we had a Bleed-1 fail message come on the EICAS. We reset everything and ran the engine again at power with the APU bleed off; this time no message came into view. We ran the engine a few more times to confirm nothing was wrong and didn't receive any abnormal indications. Approximately early morning local time; the aircraft returned to the gate with a write-up stating that the Number One Engine [had] shut down on takeoff roll at thirty percent power. Per Maintenance Control; we returned to the hangar to verify the installation of the Check Valve and found that it had been improperly installed. This was my 'Monday.' At the time of re-install I was up for approximately 18 hours. This is a job I have done before and familiar with; I was tired and installed it incorrectly. I was fatigued and not aware of the fact that I had installed it backwards.
A Mechanic reports an ERJ-175 aircraft returned to the gate with a write-up for an auto shutdown of Number 1 Engine on takeoff roll. He had reinstalled a Low Stage Bleed Check Valve on the same engine earlier and performed a Functional Check with engine runs. Mechanic notes that fatigue was a factor in his incorrectly reinstalling the Bleed Check valve.