texasreb
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- Jul 26, 2008
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On a related note to the original topic...... I just found an old hardcopy of the M&E Plans Book from 1999....
In Section 12 - Economics... they have a table for the learning curve on major base visits & mod programs.
Code:Aircraft Sequence Multiplier ----------------- ---------- Initial 2.44x Second 1.95 #3 1.76 #4 1.56 #5 1.48 #6 1.41 #7 1.33 #8 1.25 #9 1.22 #10 1.19 #11 1.16 #12 1.13 #13 1.09 #14 1.06 #15 1.03 #16 1.00 This table is for planning purposes only. It is intended for use prior to the start of new check lines and mod programs and is based on the estimated level-off man hours required. These numbers are based on worse case learning curve possibilities. Man-hour costs level off at the sixteenth aircraft when using the same work crew with nose-to-tail schedules. Use the same table for each production line when more than one line is involved in the same program.
In all the haste to condemn how long it took for the first or second checks compared to an experienced line, perhaps you might want to reconsider... If AA has to admit it takes 2.4x more time in TUL or AFW for a first check, then it is a fair bet that it would take at least 2.5x to maybe 3x as long for the first check.
The learning curve has more to do with management and engineering than mechanics. I can not tell you how many times that we have finished a check when all of the sudden another check card suddenly appears as management has reopened the bill of work making our check late.