B737-700
Flight Crew Last 90 Days 200
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Flight Crew Landed in Emergency Condition; Flight Crew Diverted; General Declared Emergency
Aircraft
We were at cruise at FL410 when the right bleed tripped off. Using our QRH procedures; we tried a reset. The bleed tripped again after about 10 seconds. As we delved back into the QRH; the left bleed tripped also. We tried a reset which failed. We then declared an emergency and began an emergency descent and turn back. When we then detected a smell of something overheating we decided to land at the nearest suitable airport. On landing; we had emergency vehicles assess the aircraft for signs of smoke or fire. Since there were none; we proceeded to the terminal.
While in cruise flight FL410; the right bleed tripped off. This was after smelling a hot odor. We ran the QRH and reset it; it tripped off again. Approximately 30 seconds later the other bleed tripped off; we tried to reset it without success. At this point we declared an emergency and began an emergency descent initially diverting back to the departure airport. The hot odor became much stronger while in the emergency descent; so we elected to divert offline.
B737-700 flight crew experiences a right bleed trip that cannot be reset at FL410. Thirty seconds later the left bleed trips and an emergency descent is initiated. When the smell of something overheating is detected the crew elects to divert to the nearest suitable airport.