The probable cause of the Nov. 22, 2004 crash of a Gulfstream III during an attempted ILS Runway 4 approach to William P. Hobby Airport in Houston, according to the NTSB, “was the flight crew’s failure to adequately monitor and cross-check the flight instruments during the approach. Contributing to the accident was the flight crew’s failure to select the instrument landing system frequency in a timely manner and to adhere to approved company approach procedures, including the stabilized approach criteria.”
The full accident report and the NTSB’s analysis shed even more light on the subtle factors that contributed to this accident. These factors center on the configuration of the accident GIII’s electronic attitude director indicators (EADIs) and the configuration of EADIs installed in other jets that the two pilots flew. Other factors noted in the report are the communication between the pilots and their failure to use approved company approach procedures.
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