Narrative:

I was the aircraft inspector on B737. The aircraft had hail strikes that required replacement of leading edge slats 5;6;7; and 8. I was assigned the post installation inspection of these slats. I witnessed the torque of the upstops but overlooked the inspection of the cotter pins. I was later notified that the aircraft had gone through an inspection in phx and qc had discovered the missing safety devices.

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Original NASA ASRS Text

Title: Inspector reported that a step was omitted that required inspection of the cotter keys on the up stop attach bolts after torque.

Narrative: I was the Aircraft Inspector on B737. The aircraft had hail strikes that required replacement of leading edge slats 5;6;7; and 8. I was assigned the post installation inspection of these slats. I witnessed the torque of the upstops but overlooked the inspection of the cotter pins. I was later notified that the aircraft had gone through an inspection in PHX and QC had discovered the missing safety devices.

Data retrieved from NASA's ASRS site 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.