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Federal Register / Vol. 86, No. 108 / Tuesday, June 8, 2021 / Rules and Regulations
airplanes. The NPRM published in the Federal Register on February 24, 2021
86 FR 11165. The NPRM was prompted by a finding that the limitation and abnormal operating procedure did not include reference to V ALTV CAP mode and a finding that the MHI RJ Aviation ULC Model CL
6002C11 Regional Jet Series 550
airplanes are also affected by the same unsafe condition Model CL6002B19
airplanes do not have V ALTS CAP or V ALTV CAP mode. The risk of the unsafe condition also exists during V
ALTV CAP mode. The NPRM proposed to require revising the existing AFM and adding airplanes to the applicability.
The FAA is issuing this AD to address an engine failure, if it occurs during or before a climb while in ALTS CAP, V
ALTS CAP, or V ALTV CAP mode, which may cause the airspeed to drop significantly below the safe operating speed, possibly resulting in reduced control of the airplane. See the MCAI for additional background information.
Comments The FAA gave the public the opportunity to participate in developing this final rule. The FAA has considered the comment received. The Air Line Pilots Association, International ALPA
stated that it supports the NPRM.
Conclusion The FAA reviewed the relevant data, considered the comment received, and
determined that air safety and the public interest require adopting this final rule as proposed, except for minor editorial changes. The FAA has determined that these minor changes:
Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM.
Related Service Information Under 1
CFR Part 51
Bombardier has issued the following service information, which describes procedures for revising the existing AFM by including a limitation that specifies a warning for the AFCS and an abnormal operating procedure if an engine failure occurs during or before a climb while in ALTS CAP mode, V
ALTS CAP mode, or V ALTV CAP
mode, as applicable. These documents are distinct since they apply to different airplane models.
Section 0208, System Limitations, of Chapter 2, LIMITATIONS; and Section 0502, In-Flight Engine Failures, of Chapter 5, ABNORMAL PROCEDURES; of the Bombardier CRJ Series Regional Jet Model CL6002B19 AFM, CSP A012, Volume 1, Revision 73, dated January 3, 2020.
Section 0208, System Limitations, of Chapter 2, LIMITATIONS; and Section 0502,
In-Flight Engine Failures, of Chapter 5, ABNORMAL PROCEDURES; of the Bombardier CRJ Series Regional Jet Model CL6002C10 Series 700, 701, 702 and CL6002C11 Series 550
AFM, CSP B012, Revision 31, dated May 8, 2020.
Section 0208, System Limitations, of Chapter 2, LIMITATIONS; and Section 0502, In-Flight Engine Failures, of Chapter 5, ABNORMAL PROCEDURES; of the Bombardier CRJ Series Regional Jet Model CL6002D24 Series 900 and CL6002D15 Series 705 AFM, CSP C
012, Volume 1, Revision 24, dated March 27, 2020.
Section 0208, System Limitations, of Chapter 2, LIMITATIONS; and Section 0502, In-Flight Engine Failures, of Chapter 5, ABNORMAL PROCEDURES; of the Bombardier CRJ Series Regional Jet Model CL6002E25 Series 1000 AFM, CSP D012, Revision 23, dated February 14, 2020.
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 the ADDRESSES section.
Costs of Compliance The FAA estimates that this AD
affects 992 airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:

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ESTIMATED COSTS FOR REQUIRED ACTIONS
Action
Labor cost
New actions

1 work-hour $85 per hour = $85

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
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Cost per product
Parts cost $0

Cost on U.S.
operators
$85

$84,320

develop on products identified in this rulemaking action.

under the criteria of the Regulatory Flexibility Act.

Regulatory Findings
List of Subjects in 14 CFR Part 39

The FAA 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 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
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

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Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

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

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