Narrative:

Fleet campaign directive used a tape measure to measure the markings (reference steps 7 and 10) on both left and right static ports. While holding the tape measure up to the ports; it was possible that the placement of the tape measure was off. Also; I may have been looking at the tape measure at a small angle. Doing the inspection as described above; the results of my measurements may have been slightly off. I have learned that a tape measure would give you more of an error than placing a 6 inch rule on the fuselage. And to make a more accurate measurement; look straight onto the rule (not at an angle).

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Original NASA ASRS Text

Title: A B757-200 INSPECTOR RPTS USING A TAPE MEASURE TO MEASURE STATIC PORT MARKINGS AND MARKINGS WERE FOUND SLIGHTLY IN ERROR. RECOMMENDS 6 INCH RULE.

Narrative: FLEET CAMPAIGN DIRECTIVE USED A TAPE MEASURE TO MEASURE THE MARKINGS (REF STEPS 7 AND 10) ON BOTH L AND R STATIC PORTS. WHILE HOLDING THE TAPE MEASURE UP TO THE PORTS; IT WAS POSSIBLE THAT THE PLACEMENT OF THE TAPE MEASURE WAS OFF. ALSO; I MAY HAVE BEEN LOOKING AT THE TAPE MEASURE AT A SMALL ANGLE. DOING THE INSPECTION AS DESCRIBED ABOVE; THE RESULTS OF MY MEASUREMENTS MAY HAVE BEEN SLIGHTLY OFF. I HAVE LEARNED THAT A TAPE MEASURE WOULD GIVE YOU MORE OF AN ERROR THAN PLACING A 6 INCH RULE ON THE FUSELAGE. AND TO MAKE A MORE ACCURATE MEASUREMENT; LOOK STRAIGHT ONTO THE RULE (NOT AT AN ANGLE).

Data retrieved from NASA's ASRS site as of January 2009 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.