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Showing articles from AA3X tag

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…

Fairfax Owners Alternatives Communication

STATEMENT OF PROBLEM Late addition of owner''''s alternates; Inadequate drawings and write-ups. Unclear to bidders; disparity in costs, or non representative cost. COURSE OF ACTION None LESSON LEARNED Need more clear definition in the drawings and scope write-up.

Lack of Plant Personnel Involvement During Design

STATEMENT OF PROBLEM Not enough direct communication with the plant personnel during design decisions. Lack of understanding of substation work; incorrect door specified; confusion on partition walls and take shelter routes; eyewash station dispute; COURSE OF ACTION None LESSON LEARNED RE&F Co…

Failure to Perform Crane Inspection

STATEMENT OF PROBLEM Crane inspection was not performed prior to turnover. Without an inspection it is difficult to determine if wear or maintenance issues on the crane were from construction or from previous plant use. COURSE OF ACTION None LESSON LEARNED An inspection should be done by the facility contrac…

Sawcutting Quality Control

STATEMENT OF PROBLEM Multiple instances where existing framing to remain was cut due to incorrect depth set on saw; damaged the integrity, and reduced the capacity of the existing members. Schedule impact for repair; additional engineering; non-standard condition for owner. COURSE OF ACTION Repaired (schedule im…

Middle Bay Laydown Area

STATEMENT OF PROBLEM Physical lay down space was less than desired. This is pretty common with press relocation work where the bay of work is the only space available for construction. Physical lay down space was less than desired. This is pretty common with press relocation work where the bay of work is the only…

Tie Rod Pockets

STATEMENT OF PROBLEM Tie rod pockets are not included in basement floor layout. Tie rods extend above columns when setting crown. All 10 tie rods have to be guided by hand into the crown. SAFETY -personel must now be working above ground & under crown when it is being lowered. DAMAGE increased risk to tie rod thr…

Fairfax Substation Modification Time Frame Issues

STATEMENT OF PROBLEM The modification of the existing Sub 4A switchgear to accommodate a new 2000A feed was separated out of the main contract in an effort to reuse available assets and perform work during the 2011 X-mas shutdown. The original timeframe could not be allowed by the plant. Solaris documentation and…

Bus Duct Reuse

STATEMENT OF PROBLEM Disconnect between RE&F intent and what was stated on drawings. Increased cost of purchasing new bus duct. COURSE OF ACTION Purchased new bus duct (increased cost). LESSON LEARNED Work with AE to develop more clear expectations for reuse.

2D Vs. 3D Deliverable

STATEMENT OF PROBLEM Should the design been issued as a 3D deliverable, or was the 2D deliverable with 3D coordination model adequate? Disconnect between what was coordinated in the 3D model, the actual 2D contract documents, and what was constructed. COURSE OF ACTION Require 3D design LESSON LEAR…

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