Narrative:

After doing my pre-flight; I had noticed we had over 7;500 pounds of fuel. I knew we had a pack MEL'd so I figured we had extra fuel for the lower altitude. After seeing the paperwork I noticed that we were too heavy on fuel. I believe the release called for 6;400 gate fuel. While continuing working I noticed the fuel door open. Shortly after that the fueler came up the cockpit and asked if I knew about this. I said yes I recognized this and he went on his way. We had not boarded yet due to maintenance fixing a lav door. When the captain came back from getting the paperwork I had told him about the lav door and the fuel. I believe sometime after we were done boarding we noticed an EICAS message of APU fuel low pressure and E2 fuel low pressure. I did not notice at the time the fuel door had been reopened. After these messages appeared we noticed the fuel pumps switching to different pumps; and alternating. The captain started to call maintenance when we noticed our fuel quantity was also depleting. I then looked out the window and realized there was a fuel truck defueling us. I quickly jumped out of the plane and told the fueler to stop. At which point he dropped the trigger on to the ground. I asked him what he was doing and he told me defueling. I asked him who told him to do this; to which he went back to his truck and showed me the order form. I then asked him to find out who ordered this; and went back up to the cockpit. I told the captain what happened and he told me maintenance was on their way. Sometime later; someone showed up asking about the fuel. This was a different person then the fueler I spoke to; and I assumed it was a supervisor. The captain had told him what had happened and that this was a maintenance issue and they had no authority to do this. This discussion escalated and the captain told the man to get off the plane. The man then continued the discussion; at which time the captain told him again to get off the plane. This then went back and forth and the man did not leave the cockpit till the captain called operations and asked them to send the police. Maintenance showed up; then the police showed up finally. The captain went on the jet bridge to discuss with the police the incident. After a while we finally got a fueler back and maintenance stayed to make sure we were refueled properly with no problems. The fuel imbalance was fixed and we finally left. I am still unsure who ordered them to defuel us. Fuel imbalance; APU fuel starvation; possible fuel pump damage all due to lack of communication.

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Original NASA ASRS Text

Title: EMB-145 flight crew notes that their aircraft has been over fueled. After passenger boarding it is noticed that the fueling door is open and the aircraft is being defueled without coordinating with the flight crew. An altercation develops between the Captain and the Fueling Supervisor and the police are summoned.

Narrative: After doing my pre-flight; I had noticed we had over 7;500 pounds of fuel. I knew we had a pack MEL'd so I figured we had extra fuel for the lower altitude. After seeing the paperwork I noticed that we were too heavy on fuel. I believe the release called for 6;400 Gate Fuel. While continuing working I noticed the fuel door open. Shortly after that the fueler came up the cockpit and asked if I knew about this. I said yes I recognized this and he went on his way. We had not boarded yet due to Maintenance fixing a LAV door. When the Captain came back from getting the paperwork I had told him about the LAV door and the fuel. I believe sometime after we were done boarding we noticed an EICAS message of APU fuel low pressure and E2 fuel low pressure. I did not notice at the time the fuel door had been reopened. After these messages appeared we noticed the fuel pumps switching to different pumps; and alternating. The Captain started to call Maintenance when we noticed our fuel quantity was also depleting. I then looked out the window and realized there was a fuel truck defueling us. I quickly jumped out of the plane and told the fueler to stop. At which point he dropped the trigger on to the ground. I asked him what he was doing and he told me defueling. I asked him who told him to do this; to which he went back to his truck and showed me the order form. I then asked him to find out who ordered this; and went back up to the cockpit. I told the Captain what happened and he told me Maintenance was on their way. Sometime later; someone showed up asking about the fuel. This was a different person then the fueler I spoke to; and I assumed it was a Supervisor. The Captain had told him what had happened and that this was a Maintenance issue and they had no authority to do this. This discussion escalated and the Captain told the man to get off the plane. The man then continued the discussion; at which time the Captain told him again to get off the plane. This then went back and forth and the man did not leave the cockpit till the Captain called Operations and asked them to send the police. Maintenance showed up; then the police showed up finally. The Captain went on the jet bridge to discuss with the police the incident. After a while we finally got a fueler back and Maintenance stayed to make sure we were refueled properly with no problems. The fuel imbalance was fixed and we finally left. I am still unsure who ordered them to defuel us. Fuel imbalance; APU fuel starvation; possible fuel pump damage all due to lack of communication.

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.