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Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations
a Effective Date This airworthiness directive AD is effective March 30, 2021.
b Affected ADs None.
c Applicability This AD applies to Bombardier, Inc., Model BD7001A10 airplanes, certificated in any category, serial numbers 9002, 9003, 9011, 9016, 9020, 9022 through 9025
inclusive, 9029, 9031, 9032, 9036, 9039
through 9044 inclusive, 9046 through 9058
inclusive, 9060 through 9065 inclusive, 9067
through 9081 inclusive, 9083 through 9106
inclusive, 9108 through 9122 inclusive, 9124
through 9126 inclusive, 9128, 9129, 9133, 9134, 9136 through 9139 inclusive, 9141
through 9148 inclusive, 9150, 9151, 9153, 9159, 9162, 9163, 9165, and 9169.
d Subject Air Transport Association ATA of America Code 33, Lights.
e Reason This AD was prompted by a report of smoke and signs of an overheating condition
i Misidentified Restoration Task The following temporary revisions misidentified the required restoration task as task 335154602.
1 Bombardier Global Express XRS BD
700 STLMC Temporary Revision 05
19032701, dated March 27, 2019.

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from the emergency light battery ELB due to excessive corrosion surrounding the internal lead acid batteries, which caused an electrical short circuit that led to the smoke and overheating condition. The FAA is issuing this AD to address such conditions, which could cause fire onboard the airplane.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Inspection and Corrective Action Within 15 months after the effective date of this AD, inspect the ELB to determine the last replacement date or the manufacturing date, as applicable; if during this inspection, any date is found to be 4 years or older, replace the ELB before further flight. Do the actions in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 70033024, dated May 13, 2019. For airplanes on which the restoration task specified in paragraph h of this AD was done before the effective date of this AD, the requirements of paragraph g of this AD are not required.
h Maintenance or Inspection Program Revision Within 60 days after the effective date of this AD, revise the existing maintenance or
2 Bombardier Global Express BD700
STLMC Temporary Revision 0519040301, dated April 3, 2019.
3 Bombardier Global Express BD700
STLMC Temporary Revision 0519040401, dated April 4, 2019.

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inspection program, as applicable, to include the information specified in Bombardier BD
700 Supplemental Time Limits/Maintenance Checks STLMC Chapter 5 task number 33
5154603, Restoration of the Emergency Lighting Batteries XL245B Emergency Battery System, in the Bombardier BD700
STLMC, as specified in the applicable temporary revision identified in figure 1 to paragraph h of this AD. The initial compliance time for doing task 335154
603 is at the applicable time specified in paragraph h1 or 2 of this AD. Repeat task 335154603 thereafter at the interval specified within that task.
1 If both ELBs were replaced at the time of compliance with paragraph g of this AD:
Within 48 months after the ELB replacement.
2 If neither ELB, or only one ELB, was replaced at the time of compliance with paragraph g of this AD: Within 48 months after the applicable date specified in paragraph h2i or ii of this AD.
i For each ELB, use the battery replacement date, if it is indicated.
ii For each ELB, use the date of manufacture, if it does not have a battery replacement date indicated.

j Compliance With Restoration Task for Airplanes On Which the Misidentified Task Was Accomplished For airplanes on which the restoration task specified as task 335154602 in the applicable temporary revision identified in
E:FRFM23FER1.SGM

23FER1

ER23FE21.015

20210317 Bombardier, Inc.: Amendment 3921420; Docket No. FAA20200843;
Product Identifier 2020NM073AD.

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