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Federal Register / Vol. 86, No. 234 / Thursday, December 9, 2021 / Rules and Regulations
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Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210688; 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, the European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD, any comments received, and other information. The street address for Docket Operations is U.S. Department of Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600
Stewart Ave., Suite 410, Westbury, NY
11590; telephone 516 2287330; email andrea.jimenez@faa.gov.
SUPPLEMENTARY INFORMATION:
Background The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 by adding an AD that would apply to Helicopteres Guimbal HG
Model Cabri G2 helicopters. The NPRM
published in the Federal Register on August 23, 2021 86 FR 47038. In the NPRM, the FAA proposed to require before further flight, removing from service certain part-numbered cooling fan front flanges and engine pulley ball bearings that have accumulated or exceeded their life limit. The NPRM
also proposed to require establishing recurring CMR tasks for certain partnumbered cooling fan front flanges.
Depending on the results of the CMR
tasks, the NPRM proposed to require corrective action. Additionally, the NPRM proposed to require painting certain part-numbered tail booms with glossy white paint.
The NPRM was prompted by a series of EASA ADs beginning with EASA AD
20160032, dated February 24, 2016
EASA AD 20160032, issued by EASA, which is the Technical Agent for the Member States of the European Union, to correct an unsafe condition for HG Model Cabri G2 helicopters.
EASA AD 20160032 states HG has revised the airworthiness limitations and maintenance tasks specified in the existing maintenance manual. EASA
further advised the revisions include new and more restrictive applicable life limits and compliance times for applicable tasks. Accordingly, EASA
20160032 required replacing each
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affected part before exceeding its life limit, accomplishing all applicable maintenance tasks within the defined intervals as described in revised maintenance manual and if discrepancies were found accomplishing the corrective actions in accordance with the applicable maintenance instructions or contacting HG. EASA AD 20160032 also required revising the existing Aircraft Maintenance Program AMP for your helicopter by incorporating the actions specified in the revised maintenance.
After EASA issued EASA AD 2016
0032, HG again revised the airworthiness limitations and maintenance tasks.
Accordingly, EASA superseded EASA
AD 20160032 with EASA AD 2019
0025, dated February 4, 2019 EASA AD
20190025. EASA advises new and more restrictive life limits have been established for cooling fan part number P/N G5200001, and P/N G5200
002, which have been identified as mandatory for continued airworthiness in Helicopteres Guimbal Cabri G2
Maintenance Manual MM No. J70002
Issue 06, dated December 6, 2018, Section C, Airworthiness Limitations the ALS. In addition to the new life limits, EASA advises of new and more restrictive inspection intervals identified in the ALS for cooling fan P/
N G5200001 with a certain mounted cooling fan front flange P/N G5202
200, or P/N G5202201. EASA further advises that the ALS revised the tail structure paint to include certain partnumbered tail booms and an additional figure. This condition, if not addressed, could result in parts remaining in service beyond their fatigue life and failure of a part, which could result in loss of control of the helicopter.
Accordingly, EASA AD 20190025
retains the requirements of EASA AD
20160032 and requires replacing each affected part before exceeding its life limit, accomplishing all applicable maintenance tasks within the defined intervals as described in the ALS, and if discrepancies are found accomplishing the corrective actions in accordance with the applicable maintenance instructions or contacting HG. EASA AD 20190025 also requires revising the tail structure paint scheme to include certain part-numbered tail booms and an additional figure. EASA
AD 20190025 requires revising the existing AMP for your helicopter by incorporating the actions specified in the ALS.

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Comments The FAA received no comments on the NPRM or on the determination of the costs.
Conclusion These helicopters have been approved by EASA and are approved for operation in the United States. Pursuant to the FAAs bilateral agreement with the European Union, EASA has notified the FAA about the unsafe condition described in its AD. The FAA reviewed the relevant data and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on these helicopters. Except for minor editorial changes, this AD is adopted as proposed in the NPRM.
Changes include clarifying the name of and the specific portions of Guimbal France Helicopteres Guimbal Cabri G2
Maintenance Manual and Instructions for Continued Airworthiness, J70002
Issue 06, dated December 6, 2018 MM
J70002 Issue 06 that are required to accomplish this final rule. MM J70002
Issue 06 also refers to a flashlight as a torchlight; accordingly, changes have been made in this final rule to clarify that where MM J70002 Issue 06
specifies to use a torchlight, to use a flashlight instead. This final rule also removes the requirements of accomplishing sub section 52A10
Cooling Fan Inspection, paragraph d, of MM J70002 Issue 06 because it is unnecessary, this final rule already provides requirements pertaining to what to do if there is a crack.
Related Service Information Under 1
CFR Part 51
The FAA reviewed page C6 of Section C, Airworthiness Limitations, and page E553 of Section E, Maintenance Instructions, of MM J70
002 Issue 06. This service information specifies airworthiness life limits, inspection intervals, and CMR
requirements for parts installed on Cabri G2 helicopters. MM J70002 Issue 06
also establishes life limits for certain part-numbered cooling fan front flanges, and engine pulley ball bearings and CMR requirements for certain cooling fan front flanges.
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.
Differences Between This AD and EASA
20190025
EASA AD 20190025 requires contacting Helicopteres Guimbal for corrective actions when a discrepancy is
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