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Federal Register / Vol. 86, No. 92 / Friday, May 14, 2021 / Rules and Regulations Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by:
a. Removing Airworthiness Directive AD 20152504, Amendment 39
18342 80 FR 76381, December 9, 2015;
and b. Adding the following new AD:

20211024 Leonardo S.p.a Type Certificate Previously Held by Agusta S.p.A.: Amendment 3921557; Docket No. FAA20210127; Project Identifier MCAI202000829R.
a Effective Date This airworthiness directive AD is effective June 18, 2021.
b Affected ADs This AD replaces AD 20152504, Amendment 3918342 80 FR 76381, December 9, 2015.
This AD applies to Leonardo S.p.a. Type Certificate previously held by Agusta S.p.A.
Model A109A and A109A II helicopters, certificated in any category, with a slider assembly pitch control slider part number P/N 1090130117 installed, except those sliders marked with an R after the serial number.
d Subject Joint Aircraft Service Component JASC
Code: 6720, Tail Rotor Control System.
e Unsafe Condition This AD defines the unsafe condition as play on a slider. This condition could result in loss of tail rotor pitch control and consequently loss of helicopter control.
f Compliance Comply with this AD within the compliance times specified, unless already done.

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g Required Actions 1 Within 25 hours time-in-service TIS
after the effective date of this AD, and thereafter at intervals not to exceed 25 hours TIS, inspect the slider for play. If there is play greater than 2.3 millimeters 0.09 inch, before further flight, replace the slider with a slider P/N 1090130117 with suffix R
marked after the serial number.
2 Within 800 hours TIS after the effective date of this AD, if not previously required per paragraph g1 of this AD, replace slider P/N 1090130117 with slider P/N 109
0130117 with suffix R marked after the serial number.
3 Installing slider P/N 1090130117
with suffix R marked after the serial number is a terminating action for the repetitive inspections required by paragraph g1 of this AD.
4 As of the effective date of this AD, do not install slider P/N 1090130117 on any helicopter unless the slider is marked with suffix R after the serial number.

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h Alternative Methods of Compliance AMOCs
DEPARTMENT OF TRANSPORTATION

1 The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph i1 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/
certificate holding district office.

Federal Aviation Administration
i Related Information
c Applicability
26367

1 For more information about this AD, contact Matthew Fuller, AD Program Manager, Operational Safety Branch, Airworthiness Products Section, General Aviation & Rotorcraft Unit, telephone 817
2225110; email matthew.fuller@faa.gov.
2 Leonardo Helicopters Alert Service Bulletin No. 109149, Revision A, dated May 18, 2020, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact Leonardo S.p.a. Helicopters, Emanuele Bufano, Head of Airworthiness, Viale G.Agusta 520, 21017 C.Costa di Samarate Va Italy; telephone +390331225074; fax +390331229046; or at https
www.leonardocompany.com/en/home. You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817 2225110.
3 The subject of this AD is addressed in European Union Aviation Safety Agency EASA AD 20200142, dated June 25, 2020.
You may view the EASA AD at https
www.regulations.gov in Docket No. FAA
20210127.
Issued on May 6, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202110191 Filed 51321; 8:45 am BILLING CODE 491013P

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14 CFR Part 39
Docket No. FAA20210342; Project Identifier MCAI202001547T; Amendment 3921530; AD 20210916
RIN 2120AA64

Airworthiness Directives; Bombardier, Inc., Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Final rule; request for comments.
AGENCY:

The FAA is adopting a new airworthiness directive AD for certain Bombardier, Inc., Model BD1001A10
airplanes. This AD was prompted by a report of a number of low altitude engine surge incidents during takeoff.
This AD requires revising the existing airplane flight manual and applicable corresponding operational procedures to provide the flightcrew with procedures to require the engine bleeds to be ON
during takeoff. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD becomes effective June 1, 2021.
The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD
as of June 1, 2021.
The FAA must receive comments on this AD by June 28, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https www.regulations.gov. Follow the instructions for submitting comments.
Fax: 2024932251.
Mail: U.S. Department of Transportation, Docket Operations, M
30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays.
For service information identified in this final rule, contact Bombardier, Inc., 200 Cote Vertu Road West, Dorval, Quebec H4S 2A3, Canada; North America toll-free telephone 1866538
1247 or direct-dial telephone 1514
8552999; email ac.yul@
aero.bombardier.com; internet https
www.bombardier.com. You may view this referenced service information at the FAA, Airworthiness Products SUMMARY:

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