The phrase "a written statement explaining why" is correct and usable in written English.
You can use it when referring to a document that provides reasons or justifications for a particular action or decision.
Example: "The committee requires a written statement explaining why the proposal was rejected."
Alternatives: "a document detailing the reasons" or "a written explanation for the decision."
Under the existing system, "I would not be doing my job if I allowed a flawed agreement to move forward," Fuentes said in a written statement, explaining why he hadn't put the matter before a council committee he leads.
In a written statement explaining why she swung her tool at the plate glass, Jessica asks people to understand that Northrop Grumman's weapon systems shatter and destroy the lives of people the world over.
If the school cannot or will not prevent Barrons from attending, Ethans said administration needs to be "transparent" on how it is going to address students' concerns and provide a written statement explaining why it chose to accept Barrons into the school.
The FIA, however, appears far from impressed as a team representative has met with the race stewards, providing "a written statement explaining why the team did not participate in qualifying … after receiving a letter from the FIA on 20 February".
Cadena's bid for tenure at Pomona was recently denied, and he has not, so far, received any written statement explaining why.
Said a posting in one Facebook discussion, "These vegetarian fascists have been at work for a while now!!" Chain e-mail messages, calling for Goans to boycott the airline and to demand that airline officials give them written statements explaining why their meat products are being confiscated, have started circulating.
Last year, Virginia Gov. Bob McDonnell proposed to make people with past convictions write statements explaining why the restoration of their voting rights was justified.
Before Wu made that first foray back to China in 1991, he wrote a statement explaining why he was willing to risk such obvious danger, and left instructions that it should be disseminated only if he was arrested.
Mr. Lohse also recounts the story of a friend who was paid $100 by Bridgewater Associates, the Connecticut-based hedge fund founded by Ray Dalio, to write a statement explaining why she did not participate in Bridgewater's recruiting process for college sophomores.
