Narrative:

I performed a repair on an md-80 aircraft at the left hand [alternate] static port area. The repair was performed per structural repair manual (srm) figure; outlining a flush repair concerning the [fuselage] production skin overlap. In this particular repair you have to use what is called the 'brick method'; where you have an internal doubler that connects the existing skin and the new skin. The figure illustrates that the bricks start and stop at the longerons and shear-ties/frames with continuous finger doublers running under all related structure. After talking to a co-worker and looking closer at srm illustration; we discovered that the bricks are supposed to pass under the shear-ties/frames with modified/repaired shear-ties and frames. The srm figure does not mention of altering/modifying or performing repairs to the affected shear-ties/frames. And the srm illustration does not include a view of the modified shear-ties/frames. In the srm; near the shear-tie/frame area; the dashed/jagged lines and fastener legend /identifying markings do not accurately represent performing this repair.

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Original NASA ASRS Text

Title: A Mechanic and Inspector report an MD-80 Structural Repair Manual (SRM) illustration does not accurately represent the requirement to have flush repair internal doublers pass under longerons; modified shear-ties and frames for a left alternate static port external fuselage skin repair in an RVSM area.

Narrative: I performed a repair on an MD-80 aircraft at the left hand [Alternate] static port area. The repair was performed per Structural Repair Manual (SRM) figure; outlining a flush repair concerning the [fuselage] production skin overlap. In this particular repair you have to use what is called the 'brick method'; where you have an internal doubler that connects the existing skin and the new skin. The figure illustrates that the bricks start and stop at the longerons and shear-ties/frames with continuous finger doublers running under all related structure. After talking to a co-worker and looking closer at SRM illustration; we discovered that the bricks are supposed to pass under the shear-ties/frames with modified/repaired shear-ties and frames. The SRM figure does not mention of altering/modifying or performing repairs to the affected shear-ties/frames. And the SRM illustration does not include a view of the modified shear-ties/frames. In the SRM; near the shear-tie/frame area; the dashed/jagged lines and fastener legend /identifying markings do not accurately represent performing this repair.

Data retrieved from NASA's ASRS site as of April 2012 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.