Narrative:

Departing runway 28 at sfo, crew misread pre departure clearance and flew SID as filed on flight plan. Layout of pre departure clearance is such that misreading is easy. 'As filed' is in plain english while departure name is coded. Crews receive clearance 'as filed' almost every flight and have a tendency to see what they expect to see.

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Original NASA ASRS Text

Title: WDB FLC FAILS TO READ COMPLETE PDC. FLIES WRONG DEP.

Narrative: DEPARTING RWY 28 AT SFO, CREW MISREAD PDC AND FLEW SID AS FILED ON FLT PLAN. LAYOUT OF PDC IS SUCH THAT MISREADING IS EASY. 'AS FILED' IS IN PLAIN ENGLISH WHILE DEP NAME IS CODED. CREWS RECEIVE CLRNC 'AS FILED' ALMOST EVERY FLT AND HAVE A TENDENCY TO SEE WHAT THEY EXPECT TO SEE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.