Form 1 NATIONAL RAILROAD ADJUSTMENT BOARD Award No. 12086
 SECOND DIVISION Docket No. 11767-T
 91-2-89-2-54
 The Second' Division consisted of the regular members and in
 addition Referee John C. Fletcher when award was rendered.'
 (Sheet Metal Workers International Association
 PARTIES TO DISPUTE:
 (Southern Railway Company

 STATEMENT OF CLAIM:
That under the current Agreement the Carrier improperly assigned at the Atlanta Georgia Locomotive Shops Boilermakers Cox, Danielson and Clodfelter to fabricate and install handrails of square tubing replacing handrails constructed of pipe which the Sheet Metal Workers had cut fitted, installed and maintained for over 40 years.

 Claimants are Sheet Metal workers S. D. McCook, S. C. Loggins, J. E. Williams, J. T. Mayes, J. L. Rucker and D. L. Reed in the amounts of:



FINDINGS:
The Second Division of the Adjustment Board, upon the whole record and all the evidence, finds that:

 The carrier or carriers and the employe or employes involved in this dispute are respectively carrier and employes within the meaning of the Railway Labor Act as approved June 21, 1934.

 This Division of the Adjustment Board has jurisdiction over the dispute involved herein.

 Parties to said dispute waived right of appearance at hearing thereon.

 At Carrier's Atlanta, Georgia Diesel Shop, a number of guard and handrails made of pipe and plate were replaced and relocated with hand and guardrails made of square tubing and plate. The task of fabrication and installation was assigned to members of the Boilermaker's Craft. The Organization filed claims contending that members of the Sheet Metal Workers Craft should have been given the work.
 Form 1 Award No. 12086
 Page 2 Docket No. 11767-T
 91-2-89-2-54

 Carrier contended that fabrication and installation of hand and guardrails is not generally recognized as work of the Sheet Metal Workers Craft. Also, it argued that inasmuch as the disputed work was claimed by two crafts the matter must be 'resolved by the Memorandum for the Settlement of Jurisdictional Disputes and because the Organization did not move under the procedures of that understanding this Board lacks jurisdiction in the matter.

 The Boilermaker's Organization filed a "Third Party" Brief in the matter, contending that the work was properly assigned under its Agreement and asserting that the Board was without jurisdiction to proceed because of the existence of the Jurisdictional Disputes Memorandum.

 Notwithstanding the fact that this Board has held on a number of occasions in the past that fabrication and installation of handrails is not work belonging exclusively to members of Sheet Metal Workers Craft, (see for example Second Division Award 7147 and the awards cited therein), we are unable to accept jurisdiction over this Claim because resolution of the dispute is covered by the 1946 Disposition of Jurisdictional Disputes Memorandum of Understanding and is not subject to adjudication by this Board. See Second Division Awards 6809 and 7198 involving the same Organization and Carrier before us here.






                            By Order of Second Division


Attest: '
        Nancy ver - Executive Secretary


Dated at Chicago, Illinois, this 24th day of July 1991.