MEMORANDUM AND ORDER
This is an action brought by the plaintiff against the defendant United States pursuant to the Federal Tort Claims Act. This matter is presently before the court upon defendant’s motion to dismiss. The defendant seeks dismissal because plaintiff did not effect service of the summons and complaint upon the defendant within 120 days after the complaint was filed.
In "its motion, the defendant contends that plaintiff had failed to effect service upon the United States Attorney within 120 days after the complaint was filed and had completely failed to effect service upon the Attorney General. In her response, plaintiff agrees that the United States Attorney was not served until December 11, 1992, 121 days after the complaint was filed. Plaintiff, however, has provided proof that the Attorney General was served on December 10, 1992.
The court finds the following facts from the materials submitted by the parties. Plaintiff filed this action on August 12, 1992. On December 9, 1992, plaintiffs counsel sent copies of the summons and complaint by certified mail to the Attorney General of the United States in Washington, D.C. and to the Department of the Army at Fort Meade, Maryland. The Attorney General and the Department of the Army received the summonses and complaints on December 10, 1992. Plaintiffs counsel delivered a copy of the summons and complaint to the United States Attorney for the District of Kansas on December 11, 1992. The defendant filed the instant motion on February 9, 1993. On March 22,1993, following plaintiffs failure to respond to the defendant’s motion, the court directed the plaintiff to show cause by April 2, 1993 why the defendant’s motion should not be granted. On April 2, 1993, plaintiff filed a motion for permission to file response out of time and a response to the motion to dismiss and motion for enlargement of time. The court subsequently granted the plaintiffs motion to file her response to the motion to dismiss out of time. In her motion for enlargement of time, plaintiff seeks an additional twenty-four hours in which to obtain service in this case.
Service upon the United States must be made as set forth in Fed.R.Civ.P. 4(d)(4), which provides as follows:
Upon the United States, by delivering a copy of the summons and of the complaint*208 to the United States attorney for the district in which the action is brought or to an assistant United States attorney or clerical employee designated by the United States attorney in a writing filed with the clerk of the court and by sending a copy of the summons and of the complaint by registered or certified mail to the Attorney General of the United States at Washington, District of Columbia, and in any action attacking the validity of an order of an officer or agency of the United States not made a party, by also sending a copy of the summons and of the complaint by registered or certified mail to such officer or agency.
Service must be completed within 120 days after the filing of the complaint unless good cause is shown why service was not made within that period. Fed.R.Civ.P. 4(j). Dismissal for delayed service under Rule 4(j) is not left to the general discretion of the district court; dismissal is mandatory unless “good cause” is shown. Rule 4(j) does not define “good cause.” The Tenth Circuit, while unable to articulate an explicit rule for determining a good cause exception, has generally approved of the standard adopted by the Fifth Circuit in Winters v. Teledyne Movible Offshore, Inc.,
The 120-day period of Rule 4(j) expired on December 10, 1992. The service of the summons and complaint upon the United States Attorney on December 11, 1992 was not timely. Plaintiff agrees that the service was untimely, but contends that good cause exists for the delay. Plaintiffs counsel states that he was under the belief that the deadline for service was December 12, 1992, which was a Saturday, and he believed that he had until December 14, 1992 in which to make service upon the defendant. Therefore, he argues that lack of compliance with the rule was due to a mistake of fact and not to a lack of good faith to comply with the rule. He also notes that the delay did not prejudice the defendant and would substantially prejudice the plaintiff.
Plaintiffs counsel’s mistaken belief that the deadline for service was December 12, 1992 rather than December 10, 1992 does not establish good cause under Rule 4(j). The law is well-settled that simple attorney neglect or inadvertence, without the presence of substantial extenuating factors, such as sudden illness or natural disaster, cannot constitute the sole basis for a “good cause” determination. Floyd v. United States,
Plaintiffs argument in her response is apparently based upon Jordan v. United States,
Similar reasoning must be applied to plaintiffs motion for enlargement of time in which to make service. Once the specified period has expired, the court may only grant extensions of time where the party’s failure to act was due to excusable neglect. Fed. R.Civ.P. 6(b)(2). “Excusable neglect” as used in Rule 6(b)(2) • is the equivalent of “good cause.” Putnam,
IT IS THEREFORE ORDERED that defendant’s motion to dismiss (Doc. # 3) be hereby granted. Plaintiffs action is hereby dismissed without prejudice pursuant to Fed. R.Civ.P. 4(j) for plaintiffs failure to serve the defendant within 120 days.
IT IS SO ORDERED.
