Airliner in terminal wall — hilarious story worthy of a Laurel and Hardy script!!
In order to perform this work, the throttle levers had been placed in the full power position and, to silence the take-off warning horn, the circuit breaker was pulled. After this work had been completed, another engineer, who was tasked with trouble shooting a reported engine oil quantity discrepancy, began carrying out an engine run, apparently without reference to the ‘Pre Power On’ portion of the Taxi/Towing Checklist.
Complete story and more pics here.
I learned the same thing, in the Navy – big foul-ups are never the fault of one person, since there are too many checks & balances in place.
Something this big is always a “group effort”. 🙂