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هوافضا::
سرپرست شیفت کاری
6.4.5 In the EMB-120 accident, the second shift supervisor who was responsible for the aircraft failed to solicit an end-of-shift verbal report (shift turnover) from the two technicians he assigned to remove both horizontal stabilizer de-ice boots.
Moreover, he failed to give a turnover to the oncoming third shift supervisor and to complete the maintenance/inspection shift turnover form.
It is probable that the accident could have been avoided if this supervisor had solicited a verbal shift turnover from the two technicians assigned to remove the de-ice boots, had passed that information to the third shift supervisor, had completed the maintenance shift turnover form and had ensured that the technicians who had worked on the de-ice boots had filled out the maintenance work cards so that the third shift supervisor could have reviewed them (latent failure and L-L mismatch).
6.4.6 The two technicians were assigned to the second shift supervisor by another supervisor, who was in charge of a C check on another aircraft.
This supervisor was given a verbal shift turnover from one of the technicians after he had already given a verbal shift turnover to the oncoming third shift supervisor, informing him that no work had been done on the left stabilizer.
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