UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

AMENDMENT NO. 10 TO
SCHEDULE 14D-1

Tender Offer Statement
Pursuant to Section 14(d)(1) of the Securities Exchange Act of 1934

WYMAN-GORDON COMPANY
(Name of Subject Company)

WGC ACQUISITION CORP.

PRECISION CASTPARTS CORP.
(Bidders)

Common Stock, $1.00 par value
(Title of Class of Securities)

983085 10 1
(CUSIP Number of Common Stock)

William D. Larsson
Vice President and Chief Financial Officer
Precision Castparts Corp.
4650 SW Macadam Avenue, Suite 440
Portland, Oregon 97201
(503) 417-4800

(Name, Address and Telephone Number of Person Authorized
to Receive Notices and Communications on Behalf of Bidder)

Copy to:

Ruth A. Beyer
Stoel Rives LLP
900 SW Fifth Avenue, Suite 2600
Portland, Oregon 97204-1268
(503) 294-9332

This Amendment No. 10 to Schedule 14D-1 further amends and supplements the Tender Offer Statement on Schedule 14D-1 (the "Schedule 14D-1") originally filed on May 21, 1999 by WGC Acquisition Corp., a Massachusetts corporation (the "Purchaser"), and Precision Castparts Corp., an Oregon corporation and the sole shareholder of the Purchaser ("PCC"), relating to the offer by the Purchaser to purchase all outstanding shares of common stock, $1.00 par value per share (collectively, the "Shares"), of Wyman-Gordon Company, a Massachusetts corporatio

Capitalized terms used and not otherwise defined herein shall have the meanings given such terms in the Schedule 14D-1.

Item 10.     Additional Information.

The information set forth in Item 10(b), (c) and (f) is hereby amended by adding thereto the following:

On November 9, 1999, PCC and the Company announced that the FTC has accepted for public comment the Agreement Containing Consent Orders previously agreed to by the FTC staff. The FTC action satisfies the final condition to the closing of the Offer, other than conditions that by their terms can be satisfied only at the closing. As a result, the expiration date of the Offer will be midnight, New York City time, on Wednesday, November 24, 1999, unless extended. The press release of PCC and the Company, dated November 9, 1999, is incorporated herein by reference to Exhibit (a)(18) to the Schedule 14D-1.

Item 11.     Material to be Filed as Exhibits.

     (a)(18)     Press Release dated November 9, 1999.

Signature

After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this Statement is true, complete and correct.

Date: November 10, 1999

INDEX TO EXHIBITS

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*     Previously filed