Narrative:

Work release was issued to accomplish job card X-10-1, wbl 355 (wing buttock line), spindle position (xbl) and accomplish job card X-10-2, wbl 254, spindle position (ibl). When in fact, job X-10-1, step 2, reads, 'inboard (wbd 254) spindle position (ibl), and job card X-10-2, step 2 reads 'outboard (wbl 355) spindle position (xbl). Fortunately, both left and right inboard and outboard spindles are covered under pci X (illustrated parts catalog). Inspector had accomplished 2 aircraft prior to noticing the incorrect job card numbers.

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Original NASA ASRS Text

Title: A B737-400 MECHANIC WAS CONFUSED BY AN INCORRECT JOB CARD WHICH SHOWED THE WING LOCATIONS FOR THE L AND R WING FLAP SPINDLE LOCATIONS.

Narrative: WORK RELEASE WAS ISSUED TO ACCOMPLISH JOB CARD X-10-1, WBL 355 (WING BUTTOCK LINE), SPINDLE POS (XBL) AND ACCOMPLISH JOB CARD X-10-2, WBL 254, SPINDLE POS (IBL). WHEN IN FACT, JOB X-10-1, STEP 2, READS, 'INBOARD (WBD 254) SPINDLE POS (IBL), AND JOB CARD X-10-2, STEP 2 READS 'OUTBOARD (WBL 355) SPINDLE POS (XBL). FORTUNATELY, BOTH L AND R INBOARD AND OUTBOARD SPINDLES ARE COVERED UNDER PCI X (ILLUSTRATED PARTS CATALOG). INSPECTOR HAD ACCOMPLISHED 2 ACFT PRIOR TO NOTICING THE INCORRECT JOB CARD NUMBERS.

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.