AD 2017-15-02

This AD becomes effective August 4, 2017.

We must receive comments on this AD by September 18, 2017.

You may send comments by any of the following methods:

• Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your comments electronically.

• Fax: 202-493-2251.

• Mail: Send comments to the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.

• Hand Delivery: Deliver to the “Mail” address between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

Jurgen E. Priester, Aviation Safety Engineer, Delegation Systems Certification Office, ASW-130, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5159; email jurgen.e.priester@faa.gov.

This AD is a final rule that involves requirements affecting flight safety, and we did not provide you with notice and an opportunity to provide your comments prior to it becoming effective. However, we invite you to participate in this rulemaking by submitting written comments, data, or views. We also invite comments relating to the economic, environmental, energy, or federalism impacts that resulted from adopting this AD. The most helpful comments reference a specific portion of the AD, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should send only one copy of written comments, or if comments are filed electronically, commenters should submit them only one time. We will file in the docket all comments that we receive, as well as a report summarizing each substantive public contact with FAA personnel concerning this rulemaking during the comment period. We will consider all the comments we receive and may conduct additional rulemaking based on those comments.

We are adopting a new AD for Bell Model 212 and Model 412 helicopters. This AD is prompted by a report that certain part numbered 209-062-520-001 check valves manufactured by Circor Aerospace as replacement parts have been found cracked or leaking on several Bell Model 427 and Model 429 helicopters. These check valves may be installed as engine oil check valves on Bell Model 212 helicopters. Similar check valves, part number 209-062-607-001, may be installed as fuel check valves on Bell Model 212 or 412 helicopters. These check valves may have a condition induced during assembly that can cause the valve body to crack, resulting in oil or fuel leakage. These suspect check valves are marked “Circle Seal” and were manufactured between October 2011 and March 2015. If not corrected, this condition could result in a crack, fuel or oil leakage, and subsequent failure of the engine or a fire and loss of control of the helicopter.

We are issuing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other helicopters of these same type designs.

We reviewed Bell Alert Service Bulletin (ASB) 212-15-153, dated September 4, 2015 (212-15-153), and Bell ASB 212-15-155, dated September 15, 2015 (212-15-155), for Model 212 helicopters and Bell ASB 412-15-168, dated September 15, 2015 (412-15-168), for Model 412 helicopters. ASB 212-15-153 describes procedures for inspecting and replacing engine oil check valve part number (P/N) 209-062-520-001 installed on certain serial-numbered Model 212 helicopters. ASB 212-15-155 and ASB 412-15-168 describe procedures for inspecting and replacing fuel check valve P/N 209-062-607-001 installed on certain serial-numbered Model 212 and Model 412 helicopters.

This AD requires, within 25 hours time-in-service (TIS), replacing the engine oil and fuel check valves.

This AD also prohibits installing a check valve P/N 209-062-520-001 or P/N 209-062-607-001 that was manufactured by Circor Aerospace, marked “Circle Seal,” and marked with a manufacturing date code of “10/11” (October 2011) through “03/15” (March 2015) on any helicopter.

The manufacturer's service information describes procedures for an inspection of the check valves within 25 hours TIS for a crack and allows 300 hours TIS to determine if the valve is affected and to replace any affected check valve. This AD requires replacing all affected check valves within 25 hours TIS.

We estimate that this AD affects 161 (59 Model 212 and 102 Model 412) helicopters of U.S. Registry.

We estimate that operators may incur the following costs in order to comply with this AD. At an average labor rate of $85, replacing each check valve (engine oil or fuel) will require about 1 work-hour, and required parts will cost $85. For the Model 212, we estimate a total cost of $340 per helicopter and $20,060 for the U.S. fleet. For the Model 412, we estimate a total cost of $170 per helicopter and $17,340 for the U.S. fleet.

According to Bell's service information some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage by Bell. Accordingly, we have included all costs in our cost estimate.

Providing an opportunity for public comments prior to adopting these AD requirements would delay implementing the safety actions needed to correct this known unsafe condition. Therefore, we find that the risk to the flying public justifies waiving notice and comment prior to the adoption of this rule because the actions required by this AD must be accomplished within 25 hours TIS, a very short interval for helicopters used in firefighting and logging operations.

Since an unsafe condition exists that requires the immediate adoption of this AD, we determined that notice and opportunity for public comment before issuing this AD are impracticable and that good cause exists for making this amendment effective in less than 30 days.

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. “Subtitle VII: Aviation Programs,” describes in more detail the scope of the Agency's authority.

We are issuing this rulemaking under the authority described in “Subtitle VII, Part A, Subpart III, Section 44701: General requirements.” Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed, I certify that this AD:

1. Is not a “significant regulatory action” under Executive Order 12866;

2. Is not a “significant rule” under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979);

3. Will not affect intrastate aviation in Alaska to the extent that it justifies making a regulatory distinction; and

4. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

We prepared an economic evaluation of the estimated costs to comply with this AD and placed it in the AD docket.

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

1. The authority citation for part 39 continues to read as follows:

2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD):