Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 36491 

at https://www.regulations.gov by searching 

for and locating Docket No. FAA–2021–0022. 

(k) Material Incorporated by Reference 

None. 

Issued on July 6, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–14701 Filed 7–9–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0541; Project 

Identifier AD–2021–00453–A; Amendment 

39–21639; AD 2021–14–12] 

RIN 2120–AA64 

Airworthiness Directives; True Flight 

Holdings LLC Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all True 

Flight Holdings LLC Models AA–1, AA– 

1A, AA–1B, AA–1C, and AA–5 

airplanes. This AD was prompted by the 

report of an accident of an airplane 

exhibiting bondline corrosion and 

delamination of the horizontal 

stabilizers. This AD requires inspecting 

the horizontal stabilizers, including the 

bondlines, for cracks, buckles, 

corrosion, delamination, rust, and 

previous repair and repairing or 

replacing parts and applying corrosion 

inhibitor as necessary. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective July 27, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of July 27, 2021. 

The FAA must receive comments on 

this AD by August 26, 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) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 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 True Flight 

Holdings LLC, 2300 Madison Highway, 

Valdosta, GA 31601; phone: (229) 242– 

6337; email: info@

trueflightaerospace.com. You may view 

this service information at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. For information 

on the availability of this material at the 

FAA, call (816) 329–4148. It is also 

available at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0541. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0541; 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 

the Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: Fred 

Caplan, Aviation Safety Engineer, 

Atlanta ACO Branch, FAA, 1701 

Columbia Avenue, College Park, GA 

30337; phone: (404) 474–5507; fax: (404) 

474–5606; email: frederick.n.caplan@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA received a report of an 

accident involving a True Flight 

Holdings LLC Model AA–5 airplane that 

occurred on January 19, 2021. During 

flight, the outboard elevator attach 

bracket on the horizontal stabilizer 

detached causing loss of elevator control 

and significant damage to the airplane. 

An investigation identified corrosion 

and delamination of the airplane skin 

bondlines around the area of the 

horizontal stabilizer where the elevator 

attach bracket was attached. Multiple 

field reports have identified additional 

instances of corrosion and delamination 

of skin bondlines around the horizontal 

stabilizer and other primary structures. 

All Models AA–1, AA–1A, AA–1B, 

AA–1C, and AA–5 Traveler airplanes 

have horizontal stabilizers that are 

similar in design and use the same 

attachment method for the elevators. 

The affected airplanes are constructed 

using a metal-to-metal bonding process. 

While the bond adhesive remains 

structurally sound throughout the aging 

process, factors such as corrosion and 

freezing moisture may compromise the 

structural integrity of some of the bond 

joints. This can lead to delamination of 

the skin from the primary structure. 

Field reports indicate that bondline 

inspections are not being adequately 

performed during routine inspections. 

The FAA has determined that a more 

thorough inspection is necessary to 

reliably identify corrosion and 

delamination of bondlines in these 

critical areas, including the horizontal 

stabilizer. 

This condition, if not addressed, 

could result in reduced structural 

integrity with consequent loss of control 

of the airplane. The FAA is issuing this 

AD to address the unsafe condition on 

these products. 

FAA’s Determination 

The FAA is issuing this AD because 

the agency has determined the unsafe 

condition described previously is likely 

to exist or develop in other products of 

the same type design. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed True Flight 

Aerospace Service Bulletin SB–195, 

Revision A, dated June 1, 2021 (True 

Flight SB–195, Revision A). This service 

information specifies procedures for 

inspecting the primary structure and 

flight controls for cracks, buckles, 

corrosion, delamination, rust, and 

previous repair and repairing or 

replacing parts and applying corrosion 

inhibitor as necessary. 

This service information is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in ADDRESSES. 

Other Related Service Information 

The FAA also reviewed True Flight 

Aerospace Service Kit 125, Revision B. 

This service information specifies 

procedures for repairing bondline 

delamination of flight controls and 

structures. 

AD Requirements 

This AD requires accomplishing the 

actions specified in the service 

information already described, except as 

discussed under ‘‘Differences Between 

the AD and the Service Information.’’ 

Differences Between the AD and the 

Service Information 

True Flight SB–195, Revision A 

applies to Models AA1, AA–1A, AA– 

1B, AA–1C, AA5, AA–5A, and AA–5B 

airplanes. However, this AD only 


khammond on DSKJM1Z7X2PROD with RULES
36492 Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 

applies to Models AA–1, AA–1A, AA– 

1B, AA–1C, and AA–5 airplanes. Also, 

this AD only requires the Part B 

inspection and repair from True Flight 

SB–195, Revision A. Actions for the 

airplanes not affected by this AD are 

specified in Part A of True Flight SB– 

195, Revision A, thus the reason for 

reduced applicability. In addition, True 

Flight SB–195, Revision A, specifies a 

reporting requirement, but this AD does 

not. 

Justification for Immediate Adoption 

and Determination of the Effective Date 

Section 553(b)(3)(B) of the 

Administrative Procedure Act (APA) (5 

U.S.C. 551 et seq.) authorizes agencies 

to dispense with notice and comment 

procedures for rules when the agency, 

for ‘‘good cause,’’ finds that those 

procedures are ‘‘impracticable, 

unnecessary, or contrary to the public 

interest.’’ Under this section, an agency, 

upon finding good cause, may issue a 

final rule without providing notice and 

seeking comment prior to issuance. 

Further, section 553(d) of the APA 

authorizes agencies to make rules 

effective in less than thirty days, upon 

a finding of good cause. 

An unsafe condition exists that 

requires the immediate adoption of this 

AD without providing an opportunity 

for public comments prior to adoption. 

The FAA has found that the risk to the 

flying public justifies foregoing notice 

and comment prior to adoption of this 

rule because cracks, buckles, corrosion, 

delamination, rust, and previous repair 

of the horizontal stabilizers could result 

in reduced integrity and lead to loss of 

control of the airplane. Additionally, the 

compliance time for the inspection of 

the horizontal stabilizers is within 25 

hours time-in-service or before the next 

100 hour or annual inspection, 

whichever occurs first, a time period of 

up to 3 months based on the average 

utilization rate of these airplanes. This 

time period is shorter than the time 

necessary for the public to comment and 

for publication of the final rule. 

Accordingly, notice and opportunity for 

prior public comment are impracticable 

and contrary to the public interest 

pursuant to 5 U.S.C. 553(b)(3)(B). 

In addition, the FAA finds that good 

cause exists pursuant to 5 U.S.C. 553(d) 

for making this amendment effective in 

less than 30 days, for the same reasons 

the FAA found good cause to forego 

notice and comment. 

Comments Invited 

The FAA invites you to send any 

written data, views, or arguments about 

this final rule. Send your comments to 

an address listed under ADDRESSES. 

Include ‘‘Docket No. FAA–2021–0541 

and Project Identifier AD–2021–00453– 

A’’ at the beginning of your comments. 

The most helpful comments reference a 

specific portion of the final rule, explain 

the reason for any recommended 

change, and include supporting data. 

The FAA will consider all comments 

received by the closing date and may 

amend this final rule because of those 

comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this final rule. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this AD contain 

commercial or financial information 

that is customarily treated as private, 

that you actually treat as private, and 

that is relevant or responsive to this AD, 

it is important that you clearly designate 

the submitted comments as CBI. Please 

mark each page of your submission 

containing CBI as ‘‘PROPIN.’’ The FAA 

will treat such marked submissions as 

confidential under the FOIA, and they 

will not be placed in the public docket 

of this AD. Submissions containing CBI 

should be sent to Fred Caplan, Aviation 

Safety Engineer, Atlanta ACO Branch, 

FAA, 1701 Columbia Avenue, College 

Park, GA 30337. Any commentary that 

the FAA receives which is not 

specifically designated as CBI will be 

placed in the public docket for this 

rulemaking. 

Regulatory Flexibility Act 

The requirements of the Regulatory 

Flexibility Act (RFA) do not apply when 

an agency finds good cause pursuant to 

5 U.S.C. 553 to adopt a rule without 

prior notice and comment. Because FAA 

has determined that it has good cause to 

adopt this rule without prior notice and 

comment, RFA analysis is not required. 

Costs of Compliance 

The FAA estimates that this AD 

affects 1,113 airplanes of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Inspection for delamination and 

corrosion.

3 work-hours × $85 per hour = 

$255.

Not applicable ................................ $255 $283,815 

The FAA estimates the following 

costs to do any necessary repairs that 

would be required based on the results 

of the inspection. The agency has no 

way of determining the number of 

airplanes that might need these repairs: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Installation of rivets and repair of bondlines of the 

horizontal stabilizers.

8 work-hours × $85 per hour = $680 ........................... $115 $795 

Treatment of inside of the horizontal stabilizers with 

corrosion inhibitor.

1 work-hour × $85 per hour = $85 ............................... 104 189 


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Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 36493 

Authority for This Rulemaking 

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. 

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, 

and 

(2) Will not affect intrastate aviation 

in Alaska. 

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: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–14–12 True Flight Holdings LLC: 

Amendment 39–21639; Docket No. 

FAA–2021–0541; Project Identifier AD– 

2021–00453–A. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 27, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to True Flight Holdings 

LLC Models AA–1, AA–1A, AA–1B, AA–1C, 

and AA–5 airplanes, all serial numbers, 

certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code: 5512, Horizontal Stabilizer, Plate/Skin; 

5522, Elevator, Plates/Skin Structure. 

(e) Unsafe Condition 

This AD was prompted by corrosion and 

delamination of the horizontal stabilizer 

bondlines. The FAA is issuing this AD to 

detect and address cracks, buckles, corrosion, 

delamination, rust, and previous repair of the 

horizontal stabilizers. The unsafe condition, 

if not addressed, could result in reduced 

structural integrity with consequent loss of 

control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection of Bondlines of the Horizontal 

Stabilizers 

Within the next 25 hours time-in-service or 

at the next scheduled 100 hour or annual 

inspection after the effective date of this AD, 

whichever occurs first, inspect the horizontal 

stabilizers, paying particular attention to the 

bondlines, for cracks, buckles, corrosion, 

delamination, rust, and previous repair in 

accordance with paragraphs 1. and 3. of Part 

B of True Flight Aerospace Service Bulletin 

SB–195, Revision A, dated June 1, 2021 (True 

Flight SB–195, Revision A). If there is any 

crack, buckle, corrosion, delamination, rust, 

or previous repair, before further flight, 

repair or replace the affected part in 

accordance with paragraphs 1.c. and 2. 

through 4. of True Flight SB–195, Revision A, 

as applicable. 

(h) No Reporting Requirement 

True Flight SB–195, Revision A specifies 

notifying True Flight Holdings LLC of 

compliance with the service bulletin; 

however, this AD does not contain that 

requirement. 

(i) Special Flight Permit 

A special flight permit is prohibited. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Atlanta 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 local Flight Standards 

District Office, as appropriate. If sending 

information directly to the manager of the 

certification office, send it to the attention of 

the person identified in Related Information. 

(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. 

(k) Related Information 

For more information about this AD, 

contact Fred Caplan, Aviation Safety 

Engineer, Atlanta ACO Branch, FAA, 1701 

Columbia Avenue, College Park, GA 30337; 

phone: (404) 474–5507; fax: (404) 474–5606; 

email: frederick.n.caplan@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) True Flight Aerospace Service Bulletin 

SB–195, Revision A, dated June 1, 2021. 

(ii) [Reserved] 

(3) For True Flight Aerospace service 

information identified in this AD, contact 

True Flight Holdings LLC, 2300 Madison 

Highway, Valdosta, GA 31601; phone: (229) 

242–6337; email: info@

trueflightaerospace.com. 

(4) You may view this service information 

at the FAA, Policy and Innovation Division, 

901 Locust, Kansas City, MO 64106. For 

information on the availability of this 

material at the FAA, call (816) 329–4148. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email: fedreg.legal@nara.gov, or go to: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on June 25, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–14687 Filed 7–9–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Parts 61 and 141 

[Docket No.: FAA–2021–0592] 

Notification of Policy for Flight 

Training in Certain Aircraft 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notification of policy. 

SUMMARY: This notification provides 

clarification on flight training for 

compensation in certain aircraft that 

hold special airworthiness certificates 

including limited category, 


khammond on DSKJM1Z7X2PROD with RULES