OPINION AND ORDER
Plaintiff filed an action in New York state court on October 27, 1997, asserting claims for breach of fair representation by defendant Transport Workers’ Union Local 100 and legal malpractice by defendants Malcolm Goldstein and O’Donnell Schwartz Glanstein & Rosen. Defendants removed the action to federal court' on November 26, 1997. On February 23, 1998 defendants moved for summary judgment. For the reasons stated below, defendants’ motion is granted.
I. Legal Standard for Summary Judgment
A motion for summary judgment may be granted only if “the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to judgment as a matter of law.” Fed.R.Civ.P. 56(c);
See also Anderson v. Liberty Lobby, Inc., 477
U.S. 242, 247-50,
In determining whether summary judgment should be granted, the court resolves all ambiguities and draws all reasonable inferences against the moving party.
See Liberty Lobby, 477
U.S. at 248,
II. Factual Background
The following facts are undisputed. Plaintiff Andre Waterman began working as a bus driver for the City of New York in 1982. See Affidavit of Andre Waterman, dated April 8, 1998, (‘Watérman Aff.”), at ¶2. Defendant Transport Workers’ Union Local 100 (“the Union”) is a labor union that represents various wage and hour employees of the Manhattan and Bronx Surface Transit Operating Authority (“MABSTOA”), plaintiffs former employer. See Defendants’ Statement of Material Facts on Motion for Summary Judgment Pursuant to Local Rule 56.1 (“Def.’s 56.1 Stat.”) at ¶3. The Union and MABSTOA are parties to a collective bargaining agreement (“CBA”) covering various hourly employees of MABSTOA. See id. at ¶ 5. This agreement provides that discipline may be grieved by the Union before an impartial arbitrator employed jointly by the Union and MABSTOA. See id. In addition, pursuant to the agreement, decisions of the arbitrator are final and binding. See id.; Affidavit of Malcolm A. Goldstein, dated February 17, 1998, (“Goldstein Aff.”), Exh. E. *366 Defendant Malcolm Goldstein (“Goldstein”) is a partner in the law offices of O’Donnell Schwartz Glanstein & Rosen (“the firm”), the firm that is general counsel to the Union. See Goldstein Aff. at ¶ 1.
On or about September 29, 1995, Waterman tested positive for cocaine following a random drug test. See Def.’s 56.1 Stat. at ¶ 6; Waterman Aff. at ¶ 2; Goldstein Aff. at ¶ 5. Thereafter, MABSTOA referred him to its Employee Assistance Program (“EAP”). See Def.’s 56.1 stat. at ¶ 7. Following clearance from MABSTOA’s medical department, plaintiff returned to work on or about January 22, 1996 and continued his drug treatment. See id. at ¶ 8; Goldstein Aff., Exh. I.
On or about April 1,1996, plaintiff allegedly tested positive again for cocaine in a test administered by Graeie Square Hospital as part of his drug treatment program. See Defs 56.1 Stat. at ¶¶ 7, 9; Waterman Aff. at ¶3. Plaintiff denies use of any controlled substances and claims that flawed testing procedures are to blame for the results. See ■ Waterman Aff. at ¶ 4.
According to Goldstein, MABSTOA terminated Waterman’s employment on or about May 9, 1996, retroactive to April 26, 1996. See Goldstein Aff. at ¶ 18. However, Waterman claims that he never received notice of this discharge and that he still possesses his identification pass and -shield — items which are collected by MABSTOA upon discharge or termination. See Waterman Aff. at ¶ 12. Despite this disagreement of fact, the parties agree that the union promptly filed a grievance on behalf of Waterman and that Gold-stein was assigned to represent him at the arbitration. See Def.’s 56.1 Stat. at ¶¶ 12,15; Waterman Aff. at ¶ 6; Goldstein Aff. at ¶¶ 19, 21.
On or about July 12, 1996, a neutral arbitrator, Thomas Hartnett, employed jointly by the Union and MABSTOA, heard Waterman’s grievance. See Goldstein Aff. at ¶ 20; Waterman Aff. at ¶ 7. Hartnett issued a written decision denying plaintiffs grievance on or about September 4, 1996. See Goldstein Aff. at ¶ 24; Waterman Aff. at ¶ 10. Waterman claims that he learned of this decision through his attorney in this suit, Regina Felton, on or about October 22, 1997. See Waterman Aff. at ¶ 10. He also contends that he has never been served with a copy of that decision. See id. at ¶ 11.
On December 23,1996 plaintiff filed a petition to compel arbitration pursuant to CPLR § 7511 against the Union and MABSTOA in Kings County Supreme Court (“1996 Action”). See Goldstein Aff. at ¶ 27. He claimed that his request for an arbitration following his discharge had been refused and that the April 1,1996 drug test had not been properly verified. See id. The court dismissed Waterman’s action in its entirety in an order dated June 14,1997. See Goldstein Aff. at ¶ 28; Waterman Aff. at ¶ 13. The court found that plaintiff’s petition was more accurately characterized as a petition to set aside the previous arbitration award rather than a motion to compel arbitration. See Waterman v. MABSTOA, The New York City Transit Authority, and the Transport Workers’ Union Local 100, Index No. 48687/96 (Sup.Ct. Kings Co., July 14, 1997) (“Waterman I”). Viewed in this light, the court reasoned that the action was barred by the 90 day statute of limitations for such relief; that the action was barred by res judicata because plaintiff had already had his arbitration; and, that plaintiff did not have standing to bring an action pursuant to CPLR § 7511 because he was not a party to the arbitration agreement between MAB-STOA and the Union. See id.; Waterman Aff., Exh. 2.
Following this dismissal, Waterman commenced the instant action in New York County Supreme Court, alleging claims for both breach of the duty of fair representation against the union and legal malpractice against the firm and Goldstein. See Verified Complaint in Goldstein Aff., Exh. A. As noted above, defendants removed plaintiffs action to this court.
III. Discussion
The defendants press three arguments in support of their motion for summary judgment: 1) that the claim against the union for breach of fair representation is barred by res judicata, 2) that this claim is also barred by the statute of limitations, and 3) that the *367 claim against the firm and Goldstein for malpractice is barred because these defendants are immune from suit. See Defendants’ Memorandum of Law in Support of the Motion for Summary Judgment (“Def.’s Mem”) at 2, 8,15. For the following reasons, defendants’ motion is granted and both claims are dismissed.
A. Breach of Fair Representation Claim Against the Union
Plaintiffs claim against the union for breach of fair representation is dismissed on the grounds of res judicata and, in the alternative, for violating the statute of limitations.
1. Res Judicata
Res judicata is a doctrine that was designed to protect “litigants from the burden of relitigating an identical issue with the same party or his privy and [to promote] judicial economy by preventing needless litigation.”
Parklane Hosiery Co., Inc. v. Shore,
Under New York law, the transactional approach to the doctrine of res judicata dictates that “parties are precluded from raising in a subsequent action any claim they could have raised in the prior one, where all of the claims arise from the same underlying transaction.”
Schulz v. Williams,
Plaintiffs 1996 Action and the current action arise out of the same series of events or underlying facts. In the earlier action, plaintiff sued MABSTOA and the Union following employment termination after testing positive for cocaine. Though the petition itself was rather unclear (See Petition in Goldstein Aff., Exh. L.), the court, in Waterman I, recharacterized Waterman’s request to compel’ arbitration as a motion to set aside or vacate the award and characterized Waterman’s grievance against the union as a breach of fair representation claim. See id.
In the current action, plaintiff is suing the union for breach of the duty of fair representation as well as the union’s firm and the individual attorney who represented him at arbitration for malpractice. Both of these claims relate to and arise out of the same series of events as the prior suit: the failure of the drug test, subsequent arbitration and eventual termination. 1
Plaintiff argues that res judicata does not bar his current action because (1) the previous action was improperly dismissed, (2) he was unable to raise the issues of failure to represent and malpractice in the state court proceeding and (3) he now seeks monetary damages. See Memorandum of Law in Opposition to Defendants’ Motion (“PL’s Mem.”) at 5-13.
With respect to the first argument, plaintiff claims 'that because he was never served with a copy of the arbitration award, the ninety day statute of limitations under CPLR § 7511(a) never commenced. As a result, Judge Yinik’s decision to dismiss on the grounds that the action was time-barred was erroneous.
See
Pl.’s Mem. at 7. It is unnecessary to explore the merits of this
*368
argument because the res judicata consequences of a final, unappealed judgment on the merits are not “altered by the fact that the judgment may have been wrong ...”
Federated Department Stores, Inc. v. Moitie,
Plaintiff next argues that he could not have brought the current claims in Action 1 because the grounds on, which an Article 75 action can be brought are specifically proscribed and do not include actions for failure to represent or for malpractice. See PL’s Mem. at 9. In Waterman I, the court stated that in the petition, Waterman alleged that the propriety of thé drug test “was not properly raised by his union representative in a prior arbitration.” Plaintiff did, in fact, claim a breach of fair representation by the union in Action 1.
With respect to plaintiffs third argument, defendants correctly point out that regardless of what type of relief is sought, res judicata bars subsequent claims arising out of the same transaction as an earlier claim.
See Jacobson,
2. Statute of Limitations
In the alternative, plaintiffs claim against the Union is barred by the statute of limitations. Where a federal statute does not proscribe a specific limitations period, federal courts must look to federal law to determine the appropriate limitations period.
See Auto Workers v. Hoosier Cardinal Corp.,
In
DelCostello,
the Supreme Court addressed the appropriate statute of limitations to apply in a hybrid section 301/ fair representation suit.
See id.
at 158, 159,
Though
DelCostello
involved a hybrid suit, courts in this circuit have uniformly read this decision to require that the § 10(b) six-month limitations period also be applied to unfair representation claims alone.
See Phelan,
The next question, then, is when did Waterman’s cause of action against the union accrue. This type of claim accrues no later than the time when plaintiff knew or reasonably should have known that a breach of the duty of fair representation had occurred.
See Eatz,
Plaintiff argues that the statute of limitations never began to run because he *369 was never served with a copy of the arbitration decision. See Pl.’s Mem. at 7. However, it is evident from the record that at least one defendant, Goldstein, knew about the arbitration determination, dated September 4, 1996. See Goldstein Aff. at ¶¶ 24-26. His affidavit suggests that he must have known about the determination before October 22, 1996, the date on which he sent documents pertaining to Waterman’s termination, including a copy of the arbitration award, to Waterman’s counsel, Regina Felton. See id. Even in the unlikely event that Waterman did not learn of the determination until this date, the statute of limitations governing plaintiffs action against the union would have expired six months later, on April 22, 1997. Furthermore, though plaintiff claims he did not learn of the award until October 22 of 1997 rather than 1996, (see Pl.’s Aff. at ¶ 10), he should have known about the decision from his attorney, who learned of it in 1996. It appears that plaintiff made an error in his affidavit and meant to say that he had received notice on October 22 1996. Plaintiff knew or should have known of the arbitration decision no later than October 22, 1996, hence the- current claim against the union for breach of the duty of fair representation, brought on October 27,1997, is time barred.
B. Malpractice Claim Against the O’Donnell Firm and Goldstein
Plaintiffs claim for malpractice against both the O’Donnell firm and Goldstein is dismissed because both of these defendants are immune from suit by a union member. Before discussing the merits of the malpractice claim, I will first address the jurisdictional basis for the malpractice claim, even though it was not raised by any party.
1. Jurisdiction .
The claim against the union for breach of the duty of fair representation arises under federal labor law and is hence a federal question claim within the meaning of 28 U.S.C. § 1331. 28 U.S.C. § 1367(a) allows a district court to exercise supplemental jurisdiction “over all other claims that are so related to claims in the action within such original jurisdiction that they form part of the same case or controversy under Article III of the United States Constitution.” Because the malpractice claim and the breach of fair representation claim are integrally related and arise out of the same underlying facts, the district court has supplemental jurisdiction over’the malpractice claim under 28 U.S.C. § 1367(a). 2
2. The Merits
Defendants argue that this claim should be dismissed because the law firm and Goldstein alike are immune from suit by Waterman. Plaintiff, on the other hand, argues that the primary ease on which defendants rely has no applicability in the Second Circuit and *370 that the rule on which defendants rely should not be extended to union attorneys.
In
Atkinson v. Sinclair Refining Co.,
Since these two holdings, courts have uniformly endorsed the principle that individual union members and agents are immune from suit.
United Steelworkers of Am. v. Lorain,
This doctrine has since been expanded to include law firms and individual attorneys who act as agents of a union in various contexts set forth in the CBA.
See Arnold v. Air Midwest, Inc.,
■ The Ninth Circuit engaged in a comprehensive discussion about why the immunity accorded individual officials of a union should also apply to law firms and attorneys acting on behalf of a union.
See Peterson,
The
Peterson
court discussed another policy in support of its decision to protect union attorneys from malpractice liability for conduct undertaken in contexts proscribed by the CBA. Though the notion of negligence is at the core of a malpractice action
(see e.g. Sohns v. Little Prince Productions, Ltd.,
Also, since the statute of limitations is far longer for malpractice actions than for breach of fair representation actions, aggrieved members would be able to sue attorneys long after the expiration of the statutory period for suits against the union and, “the union attorney would often be the only defendant against whom a disappointed grievant could proceed.”
Id.
Attorneys would become targets for strike suits in what would normally be breach of fair representation claims.
See id.; Montplaisir,
In this ease, the Union retained the O’Donnell firm to represent its members in various labor disputes and specifically appointed Goldstein to represent plaintiff in the arbitration proceeding on July 12,1996. The agency principles adopted by the courts apply directly to this case and bar plaintiffs malpractice claim against the firm and Gold-stein.
Plaintiff’s response to the immunity claim is unclear. First, he appears to argue that though this may be the law in the Ninth Circuit, it has not yet been adopted in this Circuit. See Pl.’s Mem. at 17. This argument is unavailing. First, several circuits have agreed with the approach taken in the Ninth Circuit. More importantly, that approach is well reasoned. Accordingly, I find that the immunity doctrine applies to the malpractice claims presented here.
Plaintiff also suggests that the law firm and Goldstein should not be immune from suit because this immunity would effectively remove all ethical obligations that a lawyer ordinarily has to a client.
See
Pl.’s Mem. at 15. This argument must also be rejected. First, union members may sue attorneys employed by a union where the legal services provided are unrelated to the collective bargaining agreement, such as “drafting a will, handling a divorce or litigating a personal injury suit”
(Peterson,
IV. Conclusion
Defendants have demonstrated that there is no genuine issue as to any material fact in this case. Plaintiff’s claim against the Union is barred both on res judicata and statute of limitations grounds. The claim against the law firm and Goldstein is barred because these defendants are immune ftran suit. Defendants’ motion for summary judgment is *372 therefore granted. The clerk is directed to close this case.
Notes
. Whether or not the malpractice claim against the firm and Goldstein is barred by res judicata is a complicated issue as these defendants were not parties to plaintiff’s first action. As applied to this claim, res judicata involves notions of privity that simply need not be addressed because the malpractice claim is dismissed on a different ground. See pp. 369-372, infra.
. 28 U.S.C. § 1367(c)(3) provides the district court with discretion to dismiss a claim supported only by supplemental jurisdiction if the court has dismissed all claims over which it had original jurisdiction. However, dismissal of the supplemental state claim is not required in these circumstances.
See Purgess v. Sharrock,
Though there is no mandatory dismissal of supplemental claims, once all claims over which the court had original jurisdiction have been dismissed, the underlying values of judicial economy, convenience, fairness and comity will usually point towards dismissal of the supplemental claims.
See Carnegie-Mellon Univ. v. Cohill,
One reason to retain jurisdiction is if the outcome of the claim is plain.
See Brazinski v. Amoco Petroleum Additives Co.,
Here, the underlying federal claim has been dismissed. Because the outcome of the supplemental malpractice claim is clear, it makes sense to decide this claim rather than to remand it to state court. The fact that the malpractice claim turns on federal'law is another reason to retain jurisdiction.
See Spielmann v. Anchor Motor Freight Inc.,
