Federal Register - October 26, 2021
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Source: Federal Register
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Federal Register / Vol. 86, No. 204 / Tuesday, October 26, 2021 / Rules and Regulations
months after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g3i of this AD: Within 144
months since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 144
months after the most recent inspection, if any, was performed as specified in AWL No.
28AWL18; whichever occurs later.
4 For airplanes identified in the applicability for AWL No. 28AWL20, Auxiliary Center Tank Override Fuel Pumps Auto Shutoff Circuit: At the applicable time specified in paragraph g4i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL20 in their maintenance or inspection program before the effective date of this AD: Within 12
months since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 60 days after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g4i of this AD: At the latest of the times specified in paragraphs g4iiA
through C of this AD.
A Within 12 months since issuance of the original airworthiness certificate or original export certificate of airworthiness.
B Within 12 months after the most recent inspection, if any, was performed as specified in AWL No. 28AWL20.
C Within 12 months after accomplishment of the actions specified in Boeing Service Bulletin 76728A0083 or Boeing Service Bulletin 76728A0084, as applicable.
5 For airplanes identified in the applicability for AWL No. 28AWL21, AC
and DC Fuel Pump Fault Current Bonding Jumper Installation: At the applicable time specified in paragraph g5i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL21 in their maintenance or inspection program before the effective date of this AD: Within 72
months since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 6
months after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g5i of this AD: Within 72
months since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 72
months after the most recent inspection, if any, was performed as specified in AWL No.
28AWL21; whichever occurs later.
6 For airplanes identified in the applicability for AWL No. 28AWL27, Over-Current and Arcing Protection Electrical Design Features OperationAC
Fuel Pump Ground Fault Interrupter GFI:
At the applicable time specified in paragraph g6i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL27 in their maintenance or inspection program before the effective date of this AD: Within 12
months since issuance of the original airworthiness certificate or original export
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certificate of airworthiness, or within 60 days after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g6i of this AD: At the latest of the times specified in paragraphs g6iiA
through C of this AD.
A Within 12 months since issuance of the original airworthiness certificate or original export certificate of airworthiness.
B Within 12 months after the most recent inspection, if any, was performed as specified in AWL No. 28AWL27.
C Within 12 months after accomplishment of the actions specified in Boeing Service Bulletin 76728A0085.
7 For airplanes identified in the applicability for AWL No. 28AWL28, Auxiliary Center Tank Override/Jettison Fuel Pump Failed On Protection System: At the applicable time specified in paragraph g7i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL28 in their maintenance or inspection program before the effective date of this AD: Within 12
months since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 60 days after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g7i of this AD: At the latest of the times specified in paragraphs g7iiA
through C of this AD.
A Within 12 months since issuance of the original airworthiness certificate or original export certificate of airworthiness.
B Within 12 months after the most recent inspection, if any, was performed as specified in AWL No. 28AWL28.
C Within 12 months after accomplishment of the actions specified in Boeing Service Bulletin 76728A0085.
8 For airplanes identified in the applicability for AWL No. 28AWL35, Cushion Clamps and Teflon Sleeving Installed on Out-of-Tank Wire Bundles Installed on Brackets that are Mounted Directly on the Fuel Tanks: At the applicable time specified in paragraph g8i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL35 in their maintenance or inspection program before the effective date of this AD: Within 144
months since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 12
months after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g8i of this AD: At the latest of the times specified in paragraphs g8iiA
through C of this AD.
A Within 144 months since issuance of the original airworthiness certificate or original export certificate of airworthiness.
B Within 144 months after the most recent inspection, if any, was performed as specified in AWL No. 28AWL35.
C Within 144 months after accomplishment of the actions specified in Boeing Service Bulletin 76757A0102.
9 For airplanes identified in the applicability for AWL No. 28AWL37,
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FQIS BITE Test Auxiliary Center Tank Circuit Test: At the applicable time specified in paragraph g9i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL37 in their maintenance or inspection program before the effective date of this AD: Within 750
flight hours since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 60 days after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g9i of this AD: Within 750
flight hours since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 750
flight hours after the most recent inspection, if any, was performed as specified in AWL
No. 28AWL37; whichever occurs later.
10 For airplanes identified in the applicability for AWL No. 28AWL38, Fuel Level Sensing System FLSS Dry Capacitance Test: At the applicable time specified in paragraph g10i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL38 in their maintenance or inspection program before the effective date of this AD: Within 750
flight hours since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 60 days after the effective date of this AD, whichever occurs later.
ii For airplanes not identified in paragraph g10i of this AD: Within 750
flight hours since issuance of the original airworthiness certificate or original export certificate of airworthiness, or within 750
flight hours after the most recent inspection, if any, was performed as specified in AWL
No. 28AWL38; whichever occurs later.
11 For airplanes identified in the applicability for AWL No. 28AWL101, Engine Fuel Suction Feed Operational Test: At the applicable time specified in paragraph g11i or ii of this AD.
i For airplanes that did not have any version of AWL No. 28AWL101 in their maintenance or inspection program before the effective date of this AD: At the later of the times specified in paragraphs g11iA
and B of this AD.
A Within 7,500 flight hours or 36 months, whichever occurs first since issuance of the original airworthiness certificate or original export certificate of airworthiness.
B Within 60 days after the effective date of this AD.
ii For airplanes not identified in paragraph g11i of this AD: At the later of the times specified in paragraphs g11iiA and B of this AD.
A Within 7,500 flight hours or 36 months, whichever occurs first since issuance of the original airworthiness certificate or original export certificate of airworthiness.
B Within 7,500 flight hours or 36 months, whichever occurs first after the most recent inspection, if any, was performed as specified in AWL No. 28AWL101.
12 For airplanes identified in the applicability for AWL No. 28AWL102, Fuel Quantity Indicating System FQIS
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