The workers found a severely cracked “pickle fork” on a Boeing 737NG on a plane that have logged approximately only 35,000 flight cycles.
A ‘pickle fork’ is the part that connects the fuselage with wings to manage stress and torque loading on the structure.
According to Boeing engineers, the ‘pickle forks’ are designed to last the lifetime of the plane with at least 90,000 flight cycles of landings and takeoffs.
Engineers found the crack on 737NG earlier in month, and now they found the same crack on more planes.
The U.S. Federal Aviation Administration said in a statement late on Friday, “The FAA will require operates of certain 737NG jetliners to conduct inspections for structural cracks. Boeing notified the agency of the matter after it discovered the cracks while conducting modifications on a heavily used aircraft. Subsequent inspections uncovered similar cracked in a small number of additional planes. The FAA will instruct operators to conduct specific inspections, make many necessary repairs and to report their finding to the agency immediately”