<< >> NASA ASRS Report 693411, February 2006

A B757-200 inspector reports using a tape measure to measure static port markings and markings were found slightly in error. Recommends 6 inch rule.

Attributes
ACN	693411
Time
Date	200602
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : inspector
Qualification	technician : powerplant technician : airframe
ASRS Report	693411
Person 2
Affiliation	company : air carrier
Function	maintenance : lead technician
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : engineering procedure performance deficiency : inspection performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Maintenance Human Performance
Primary Problem	Maintenance Human Performance

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).

Related reports:

• Inspector working a B737-700 aircraft recommends a paperwork...
• A maintenance inspector recommends that whenever a cessna 42...

	Enter your search terms Submit search form
	Web www.37000feet.com

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.