that he communicated with Milwaukee Tower while Martin was asking him about the information of the plane's instruments. Captain Martin held primary responsibility for handling the emergency and taking corrective actions. However, the emergency should have been handled by both men working together as a team. Weiss should have assisted the Captain in responding and diagnosing the problem that had occurred on board Flight 105. The NTSB stated: "The redundancy provided by the First Officer is one of the basic tenets of Cockpit Resource Management." The NTSB then concluded that breakdown in crew coordination was one of the main causes of the accident, one possible cause being their inexperience--only a few hundred hours in this jet. Inadequate FAA oversight The lack of experience of an FAA Principal Operations Inspector (POI) may have caused the silent cockpit philosophy to be approved by the FAA without proper examination. The philosophy was contrary to the approved practice by the FAA. If she had had more experience, she might have recognized that the concept had flaws, and that the airline was already teaching the concept to their employees. The NTSB believed that the POI who worked with Midwest Express did not perform her duties at an adequate level. As per the final report: "The safety board believes that the FAA oversight of Midwest Express procedures and training during certification and ongoing day-to-day activity in the carrier's first 2 years of operation was less than optimum and probably suffered as a direct result of the inexperience of the POI. The POI testified that she devoted only 20 percent of her worktime to Midwest Express, her only FAR 121 scheduled passenger airline, and that she was still obligated to perform routine general aviation rules. The Board noted that the POI had no previous FAR 121 air carrier experience, that she was not rated in a turbojet of the category and class used by the airline, and that she had not rated received any formal training in the DC-9 airplane used by the certificate holder for which she was responsible. In fact, she had no turbojet pilot experience. Neither did the POI have available for consultation or assistance air carrier inspectors assigned to other offices to fulfill her responsibilities. Apparently, she had become so dependent on other inspectors in surveilling Midwest Express that her own role was reduced primarily to administrative matters. The absence of first-hand knowledge