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Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Rules and Regulations
d Subject Air Transport Association ATA of America Code 21, Air conditioning.
e Unsafe Condition This AD was prompted by the determination that the aft cargo fire suppression capability is reduced if the airplane is dispatched or released with failed electronic flow control of air conditioning packs. The FAA is issuing this AD to address this condition, which can result in an uncontained aft cargo compartment fire due to insufficient cargo fire suppression capability.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Conditions for Prohibited Operation Beginning August 19, 2021, no person may dispatch or release an airplane with cargo in the aft cargo compartment with failed electronic flow control of air conditioning packs, unless the aft cargo compartment remains empty, or is verified by the operator to contain only non-combustible and/or nonflammable empty cargo handling equipment, ballast, and/or fly-away kits.
Note 1 to paragraph g: The operators existing FAA-approved minimum equipment list MEL defines which items are approved for inclusion in the fly-away kits, and which materials may be used as ballast.

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h Minimum Equipment List MEL Items The master minimum equipment list MMEL items specified in paragraphs h1
and 2 of this AD are affected by the prohibition specified in paragraph g of this AD, and therefore may affect the operators existing FAA-approved MEL.
1 For Model 7378, 7379, and 7378200
airplanes: MMEL System No. 21, Sequence No. 510201, Electronic Flow Control.
2 For Model 737800 and 737900ER
series airplanes: MMEL System No. 21, Sequence No. 0203, Electronic Flow Control.
Note 2 to paragraph h: The MMEL items specified in paragraph h of this AD can be found in the applicable FAA-approved MMEL: Boeing 737 B737100/200/300/
400/500/600/700/800/900/900ER MMEL, Revision 61, dated July 8, 2020; and Boeing 737 MAX B7378/8200/9 MMEL, Revision 3, dated April 12, 2021. These MMELs can be found on the Flight Standards Information Management System FSIMS
website, https fsims.faa.gov/PICResults .aspx?mode=Publication&doctype=
MMELByModel.
i Alternative Methods of Compliance AMOCs 1 The Manager, Seattle ACO 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 responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of
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the person identified in Related Information.
Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
3 An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by The Boeing Company Organization Designation Authorization ODA that has been authorized by the Manager, Seattle ACO Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD.
j Related Information For more information about this AD, contact Sam Nalbandian, Aerospace Engineer, Cabin Safety and Environmental Systems Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA
98198; phone and fax: 2062313993; email:
Samuel.K.Nalbandian@faa.gov.
k Material Incorporated by Reference None.
Issued on July 29, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202116972 Filed 8521; 11:15 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210619; Project Identifier AD202100789R; Amendment 3921678; AD 20211551
RIN 2120AA64

Airworthiness Directives; Bell Textron Inc. Type Certificate Previously Held by Bell Helicopter Textron Inc.
Helicopters Federal Aviation Administration FAA, DOT.
ACTION: Final rule; request for comments.
AGENCY:

The FAA is adopting a new airworthiness directive AD for certain Bell Textron Inc. type certificate previously held by Bell Helicopter Textron Inc. Model 204B, 205A, 205A
1, 205B, and 212 helicopters. This AD
was prompted by a fatal accident in which an outboard main rotor hub strap pin pin sheared off during flight, resulting in the main rotor blade and the main rotor head detaching from the helicopter. This AD requires removing
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the pins from service before further flight and prohibits installing them on any helicopter. The FAA previously sent an emergency AD to all known U.S.
owners and operators of these helicopters and is now issuing this AD
to address the unsafe condition on these products.
DATES: This AD is effective August 24, 2021. Emergency AD 20211551, issued on July 6, 2021, which contained the requirements of this amendment, was effective with actual notice.
The FAA must receive comments on this AD by September 23, 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: 202 4932251.
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 Bell Textron, Inc., P.O. Box 482, Fort Worth, TX 76101;
telephone 450 4372862 or 800 363
8023; fax 450 4330272; email productsupport@bellflight.com; or at https www.bellflight.com/support/
contact-support. You may view this 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 817 222
5110.
Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA 20210619; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, any comments received, and other information. The street address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:
David Wilson, Aerospace Engineer, DSCO Branch, Compliance &
Airworthiness Division, FAA, 10101
Hillwood Pkwy., Fort Worth, TX 76177;
telephone 817 2225786; email david.wilson@faa.gov.
SUPPLEMENTARY INFORMATION:

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