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Federal Register / Vol. 86, No. 119 / Thursday, June 24, 2021 / Rules and Regulations ESTIMATED COSTS OF ON-CONDITION ACTIONS
Labor cost
Up to 2 work-hour $85 per hour = Up to $170 per spoiler assembly
Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs 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 Agencys authority.
The FAA is 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.
Regulatory Findings 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 above, I
certify that this AD:
1 Is not a significant regulatory action under Executive Order 12866, 2 Will not affect intrastate aviation in Alaska, and 3 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.

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List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
The Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

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16:01 Jun 23, 2021

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Parts cost
Cost per product
$5,432 per spoiler assembly

Up to $5,602 per spoiler assembly.

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

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20211212 The Boeing Company:
Amendment 3921599; Docket No.
FAA20201028; Project Identifier AD
202000978T.
a Effective Date This airworthiness directive AD is effective July 29, 2021.
b Affected ADs None.
c Applicability This AD applies to all The Boeing Company Model 717200 airplanes, certificated in any category.
d Subject Air Transport Association ATA of America Code 57, Wings.
e Unsafe Condition This AD was prompted by a report of discrepant spoiler assemblies, which have the wrong splice bar installed and lack reinforcing doublers. The FAA is issuing this AD to address splice bars which are not structurally adequate, which can lead to failure of the splice bar to keep the spoiler drive link engaged, and could result in spoiler float and consequent reduced controllability of the airplane.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions Except as specified by paragraph h of this AD: At the applicable times specified in the Compliance paragraph of Boeing Alert Requirements Bulletin 71757A0027 RB, dated June 26, 2020, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 71757A0027 RB, dated June 26, 2020.
Note 1 to paragraph g: Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 71757A0027, dated June 26, 2020, which is referred to in Boeing Alert Requirements Bulletin 71757A0027 RB, dated June 26, 2020.

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h Exceptions to Service Information Specifications 1 Where Boeing Alert Requirements Bulletin 71757A0027 RB, dated June 26, 2020, uses the phrase the original issue date of Requirements Bulletin 71757A0027 RB, this AD requires using the effective date of this AD.
2 Where Boeing Alert Requirements Bulletin 71757A0027 RB, dated June 26, 2020, specifies contacting Boeing for repair instructions: This AD requires doing the actions specified in paragraph h2i or ii of this AD before further flight.
i Repair using a method approved in accordance with the procedures specified in paragraph k of this AD.
ii Replace any spoiler assembly having incorrect configuration with a replacement spoiler assembly. A replacement spoiler assembly must have a correct configuration as specified in Boeing Alert Requirements Bulletin 71757A0027 RB, dated June 26, 2020.
Note 2 to paragraph h2ii: Guidance for replacing the spoiler assembly with the correct configuration spoiler assembly can be found in Model 717 Airplane Maintenance Manual AMM, Chapter 276001.
i Credit for Previous Actions This paragraph provides credit for the actions specified in paragraph g of this AD, if those actions were performed before the effective date of this AD using Boeing Multi Operator Message MOMMOM190572
01B, dated October 16, 2019.
j Parts Installation Limitation As of the effective date of this AD, no person may install, on any airplane, any affected spoiler assembly a spoiler assembly that does not have a splice bar having part number 3914588501 and two doublers having part number 594097431, unless it has been inspected and all applicable corrective actions have been done as specified in paragraph g of this AD.
k Alternative Methods of Compliance AMOCs 1 The Manager, Los Angeles 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 the person identified in paragraph l1 of this AD. Information may be emailed to:
9-ANM-LAACO-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.

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