From: Tom Stybr <Tom.Stybr@boeing.com> Organization: Boeing - Wichita Division Date: 08 Nov 96 05:24:23 References: 1 Followups: 1
View raw article or MIME structure
It has been reported that a maintenance crew covered the static ports with duct tape during a skin polishing task and then neglected to remove it. The pilot also failed to notice the covered ports during his walk-around (if he did one). This explains the pilot not knowing his airspeed or altitude. The static lines would have had higher than actual static pressure causing instruments to read lower altitude than actual (his ground prox alarm was sounding). The airspeed instruments use both static ports and pitot probes to determine airspeed. Dense fog contributed to no visual checks of the instrument readings, the pilot became disoriented, you know the rest. -- Thanx for your interest. Tom If you think I speak for the Boeing company you are, as George Carlin puts it, stupid, crazy, or full of s#&@.