Report of Foreign Issuer (6-k)

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For the month of November, 2017

(Commission File No. 001-32221) ,

GOL LINHAS AÉREAS INTELIGENTES S.A.

(Exact name of registrant as specified in its charter)

GOL INTELLIGENT AIRLINES INC.

(Translation of Registrant's name into English)

Praça Comandante Linneu Gomes, Portaria 3, Prédio 24
Jd. Aeroporto
04630-000 São Paulo, São Paulo
Federative Republic of Brazil

(Address of Regristrant's principal executive offices)

Indicate by check mark whether the registrant files or will file
annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___ Form 40-F ______

Indicate by check mark whether the registrant by furnishing the
information contained in this Form is also thereby furnishing the
information to the Commission pursuant to Rule 12g3-2(b) under
the Securities Exchange Act of 1934.

Yes ______ No ___X___

If "Yes" is marked, indicated below the file number assigned to the
registrant in connection with Rule 12g3-2(b):

GOL Foreign Currency Rating Upgraded to B by Fitch

São Paulo, November 13, 2017 – GOL Linhas Aéreas Inteligentes S.A. (“GOL” or “Company”), (NYSE: GOL and B3: GOLL4) , Brazil's #1 airline, announced today that Fitch Ratings - one of three major corporate credit rating agencies - upgraded GOL’s credit rating, as well as that of notes issued by us and by our fully-owned subsidiaries. The foreign and local currency IDRs (Issuer Default Ratings) have been upgraded to B, with stable outlook (from CCC). GOL’s unsecured 2022 and 2023 notes, and GOL’s perpetual bonds were upgraded to B with stable outlook (from CCC-), and are now rated at the same level as the Company’s IDR. The rating of GOL’s 2018, 2021 and 2028 secured notes was upgraded to B+ with stable outlook (from CCC+). GOL’s national scale rating was upgraded to BBB- (bra) with stable outlook, from CCC(bra). “This ratings upgrade reflects GOL’s solid credit and was made possible by the hard work and dedication of all our GOL employees. It is a testament to the results of our successful transformation, which has driven five consecutive quarters of positive operating margin and significantly strengthened our balance sheet,” said Richard Lark, Executive Vice President and Chief Financial Officer.

Investor Relations

ri@voegol.com.br

www.voegol.com.br/ir

+55(11) 2128-4700

About GOL Linhas Aéreas Inteligentes S.A.

Brazil's largest airline group. GOL is Brazil's largest airline, carrying 33 million passengers annually on more than 700 daily flights to 63 destinations, 52 in Brazil and 11 in South America and the Caribbean, on a fleet of 120 Boeing 737 aircraft, with a further 120 Boeing 737 MAX on order. GOLLOG is a leading cargo transportation and logistics business serving more than 2,200 Brazilian municipalities and, through partners, 205 international destinations in 95 countries. SMILES is one of the largest coalition loyalty programs in Latin America, with over 12 million registered participants, allowing clients to accumulate miles and redeem tickets for more than 700 locations worldwide. GOL has a team of more than 15,000 highly skilled aviation professionals delivering Brazil's top on-time performance, and an industry leading 16 year safety record. GOL's shares are traded on the NYSE (GOL) and the B3 (GOLL4).

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1	GOL Linhas Aéreas Inteligentes S.A .

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: November 13, 2017

GOL LINHAS AÉREAS INTELIGENTES S.A.


By:	/S/ Richard Freeman Lark Junior
	Name: Richard Freeman Lark Junior Title: Investor Relations Officer

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates offuture economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will a ctually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.

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