UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 27, 2013

Bristow Group Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (713) 267-7600

Former Name or Former Address, if Changed Since Last Report: NONE

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Item 7.01. Regulation FD Disclosure.

As previously reported, on August 23, 2013, an incident occurred with an AS332 L2 Super Puma helicopter operated by another helicopter company, which resulted in a ditching on the North Sea, near Sumburgh in the Shetland Isles, UK. The aircraft was carrying 16 passengers and two crew members at the time of the ditching. Four fatalities and multiple injuries were reported.

The cause of the incident is not yet known and is under investigation by authorities in the UK. To date there is no information to suggest that there is any connection between the current incident with the AS332 L2 aircraft and the prior incidents with the EC225 aircraft in the UK in May 2012 and October 2012. The EC225 incidents resulted in the issuance of a directive from the UK Civil Aviation Authority (CAA) on October 25, 2012 suspending operations of the EC225 aircraft. No reports or directives have been issued by authorities in the UK as a result of the AS332 L2 incident. However, the Helicopter Safety Steering Group (HSSG), an industry group in the UK consisting of helicopter operators, union representatives and oil and gas customers, recommended as a precautionary measure on August 23, 2013 that operators suspend all Super Puma (which includes the AS332 L, AS332 L1, AS332 L2 and EC225 aircraft types) commercial passenger flights to and from offshore oil and gas installations within the UK. Separately, the Nigerian Civil Aviation Authority on August 24, 2013 required operators of the AS332 L2 aircraft to suspend operations of the affected aircraft within Nigeria.

Bristow Group Inc. (the “Company”) operates a total of twenty AS332 series aircraft worldwide as follows:

The Company has suspended operations of its two AS332 L2s in Nigeria. The Company continues to operate and offer its AS332 L and L1 aircraft in support of its customers’ critical operations around the world. In the UK, certain clients have elected to not utilize the Super Pumas consistent with the HSSG recommendation.

The Company expects to increase utilization of other in-region aircraft and implement contingency plans designed to identify other available aircraft that can be safely and quickly mobilized to minimize or eliminate the impact on our clients’ critical operations. The Company is returning the EC225 aircraft to service pursuant to new airworthiness directives issued by The European Aviation Safety Agency (EASA) and the canceling of the safety directives which had previously been issued in late 2012 by the CAA and the Norwegian Civil Aviation Authority. It is too early to determine whether the current incident will impact the timing of the return to service of the EC225 aircraft or otherwise have a material impact on the Company.

The information in this Item 7.01 is being furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section and shall not be deemed incorporated by reference into any registration statement or other document filed pursuant to the Securities Act of 1933, as amended, except as may be expressly set forth by specific reference in such filing.

Forward-Looking Statements

This current report contains certain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Exchange Act. These forward-looking statements include statements regarding increases in utilization of other in-region aircraft, implementation of contingency plans, the EC225 return to service and the impact of the incident on the Company. Our forward-looking statements reflect our views and assumptions on the date of this current report regarding future events. They involve known and unknown risks, uncertainties and other factors, many of which may be beyond our control, that may cause actual results to differ materially from any future results, performance or achievements expressed or implied by the forward-looking statements. These risks, uncertainties and other factors include statements discussed under the captions “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual

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Report on Form 10-K for the fiscal year-ended March 31, 2013 and our Quarterly Report on Form 10-Q for the quarter ended June 30, 2013. We do not undertake any obligation, other than as required by law, to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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SIGNATURES

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 hereunto duly authorized.

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