Voglio sapere a riguardo di…

50294

Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Proposed Rules
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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.
39.13

Amended
2. The FAA amends 39.13 by:
a. Removing Airworthiness Directive AD 20172206, Amendment 39
19086 82 FR 49498, October 26, 2017, and b. Adding the following new AD:

Bombardier, Inc.: Docket No. FAA2021
0725; Project Identifier MCAI2020
01402T.
a Comments Due Date The FAA must receive comments on this airworthiness directive AD by October 25, 2021.
b Affected ADs This AD replaces AD 20172206, Amendment 3919086 82 FR 49498, October 26, 2017 AD 20172206.
c Applicability This AD applies to Bombardier, Inc., Model CL6002B16 6013A, 6013R, and 604 Variants airplanes, certificated in any category, serial numbers 5301 through 5665
inclusive, 5701 through 5990 inclusive, and 6050 through 6163 inclusive.
d Subject Air Transport Association ATA of America Code 28, Fuel.
e Reason This AD was prompted by reports of fuel leaks from the electrical connectors and conduits of the engine and auxiliary power unit APU electrical fuel pump EFP

cartridge/canister, and additional actions have been developed to address the root cause of the fuel leaks. The FAA is issuing this AD to address the potential for a fire hazard as a result of fuel leak from the APU
EFP electrical conduit in the hot landing light compartment.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Retained Actions for Certain Airplanes, With Revised Service Information and Method of Compliance Provisions This paragraph restates the requirements of paragraph g of AD 20172206, with revised service information and method of compliance provisions. For Model CL600
2B16 airplanes having serial numbers 5301
through 5665 inclusive: Within 600 flight hours or 12 months, whichever occurs first after November 30, 2017 the effective date of AD 20172206, do the inspections specified in paragraphs g1 through 3 of this AD, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 60428022, dated October 19, 2015, or Bombardier Service Bulletin 60428022, Revision 3, dated August 31, 2018. Do all applicable corrective actions before further flight. Repeat the inspections at intervals not to exceed 600 flight hours or 12 months, whichever occurs first. As the effective date of this AD, use Bombardier Service Bulletin 60428022, Revision 3, dated August 31, 2018, only.
1 Do a general visual inspection for traces of fuel coming from the right-hand engine boost pump at the location of the belly fairing screw FS412, BL 0.0.
2 Do a general visual inspection for traces of fuel coming from the left-hand engine boost pump at the location of the belly fairing screw FS412, BL 0.0.
3 Do a general visual inspection for traces of fuel coming from the EFP electrical wiring conduit outlet at the lower body fairing area for engine EFPs and at the right-hand landing light compartment for the APU EFP.
h Retained Actions for Certain Other Airplanes, With Revised Service Information and Compliance Method Provisions This paragraph restates the requirements of paragraph h of AD 20172206, with revised service information and compliance
method provisions. For Model CL6002B16
airplanes having serial numbers 5701
through 5955 inclusive, 5957, 5960 through 5966 inclusive, 5968 through 5971 inclusive, and 5981: Within 600 flight hours or 12
months, whichever occurs first after November 30, 2017 the effective date of AD
20172206, do the inspections specified in paragraphs h1 through 3 of this AD, and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions in Bombardier Service Bulletin 60528010, dated October 19, 2015, or Bombardier Service Bulletin 60528010, Revision 3, dated August 31, 2018. Do all applicable related investigative and corrective actions before further flight.
Repeat the inspections at intervals not to exceed 600 flight hours or 12 months, whichever occurs first. As of the effective date of this AD, use Bombardier Service Bulletin 60528010, Revision 3, dated August 31, 2018, only.
1 Do a general visual inspection for traces of fuel coming from the right-hand engine boost pump at the location of the belly fairing screw FS412, BL 0.0.
2 Do a general visual inspection for traces of fuel coming from the left-hand engine boost pump at the location of the belly fairing screw FS412, BL 0.0.
3 Do a general visual inspection of the right-hand landing light compartment for traces of fuel coming from the APU EFP.
i New Requirements of This AD:
Inspections and Rectifications For the airplanes identified in figure 1 to paragraph i of this AD: At the applicable compliance time specified in figure 1 to paragraph i of this AD, do a general visual inspection for any fuel leak from the engine and APU EFP electrical wiring conduit outlets, in accordance with the Accomplishment Instructions of the applicable service information specified in figure 1 to paragraph i of this AD. If any fuel leak is found during the general visual inspection, before further flight, correct the fuel leak in accordance with the Accomplishment Instructions of the applicable service information specified in figure 1 to paragraph i of this AD.
Thereafter, repeat the general visual inspection at intervals not to exceed 600
flight hours or 12 months, whichever occurs first.

FIGURE 1 TO PARAGRAPH iCOMPLIANCE TIMES AND SERVICE INFORMATION
Serial Nos.

Compliance time
Bombardier service bulletin
5956, 5958, 5959, 5967, 5972 through 5980
inclusive, and 5982 through 5990 inclusive.

Within 600 flight hours or 12 months, whichever occurs first after the effective date of this AD.
Within 600 flight hours or 12 months, whichever occurs first after the effective date of this AD.

Bombardier Service Bulletin 60528010, Revision 3, dated August 31, 2018.

the APU for any damage or deformations, and modify the engine EFP installation, in accordance with the Accomplishment Instructions of the applicable service
information specified in figure 2 to paragraph j of this AD. If any damage or deformations are found during the detailed visual inspection, before further flight, do the repair
jbell on DSKJLSW7X2PROD with PROPOSALS

6050 through 6163 inclusive

j New Requirements of This AD: Inspection and Modification Within 60 months after the effective date of this AD: Do a detailed visual inspection of
VerDate Sep<11>2014

16:57 Sep 07, 2021

Jkt 253001

PO 00000

Frm 00006

Fmt 4702

Sfmt 4702

Bombardier Service Bulletin 65028001, Revision 3, dated January 3, 2019.

E:FRFM08SEP1.SGM

08SEP1