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Showing articles from AA3X tag

Scrap Conveyor Equipment Design

STATEMENT OF PROBLEM Design was not finalized early enough in the project. Caused design iteration. COURSE OF ACTION None LESSON LEARNED Put more emphasis on the fact that a scrap handling design is critical path.

Incorrectly Cored Tie Rod Pockets

STATEMENT OF PROBLEM Two tie rod pockets were cored in the wrong location. One dimension provided by the Press Group was transposed incorrectly, which migrated into the contract documents. The holes were cored per the drawings. The discrepancy was not discovered until press install, which caused some schedule del…

Demolition Noise Level Issue

STATEMENT OF PROBLEM The concrete was demolished using a jack-hammer, which caused some higher noise levels and led to one recordable. Also, there was a corporate safety audit that took place at the same time that identified the noise hazard. The Plant was notified of the noise and the employees were suppose to b…

Ironworkers Over Rails While Tied Off Safety Issue

STATEMENT OF PROBLEM They wanted to work off the rails of the basket while being tied off. Not safe, even though there is an OSHA exception. COURSE OF ACTION Not allowed even though there is an OSHA exception. LESSON LEARNED If a process is going to be used that is non-standard, make sure all …

Grout Drawings Notes Confusion

STATEMENT OF PROBLEM Notes for grout at rails etc. do not reflect as installed. Grout notes on drawings create confusion for installation contractors. It drives cost into the quote and wasted time in clarifications and instruction. COURSE OF ACTION None LESSON LEARNED AE to work more closely with Press Engin…

Light Screen Conduit Details

STATEMENT OF PROBLEM Missed from original bid documents, not matching Pontiac drawings; Late information from Owner, after contract award; Inadequate detail on engineer''''''''s drawings for routing, material, and details. Schedule impact; increased cost due to field order. COURSE OF ACTION Field ordere…

Failure to specify surveying requirements

STATEMENT OF PROBLEM Precision surveying requirements not clearly defined in contract documents; Contractor not performing as frequently with signed-off documentation between Owner-Contractor-AE. Unclear expectations to the contractor; potential cause for errors. COURSE OF ACTION None LESSON LEARN…

Steel Framing Reuse Design Issue

STATEMENT OF PROBLEM During the bid, the reuse of the steel was offered as a voluntary alternate that GM accepted. In theory, the concept made sense. However, during construction many issues were discovered with certain members that was not evident on design drawings or as-builts. Did not yield as much savings as…

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