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Federal Register / Vol. 86, No. 37 / Friday, February 26, 2021 / Proposed Rules
6 For AWL No. 28AWL27, OverCurrent and Arcing Protection Electrical Design Features OperationAC Fuel Pump Ground Fault Interrupter GFI: Within 12
months after the most recent inspection was performed as specified in AWL No. 28
AWL27, or within 12 months after accomplishment of the actions specified in Boeing Service Bulletin 76728A0085, whichever is later. If no initial inspection was performed or the last inspection date is unknown, then within 30 days after the effective date of this AD.
7 For AWL No. 28AWL28, Auxiliary Center Tank Override/Jettison Fuel Pump Failed On Protection System: Within 12
months after the most recent inspection was performed as specified in AWL No. 28
AWL28, or within 12 months after accomplishment of the actions specified in Boeing Service Bulletin 76728A0085, whichever is later. If no initial inspection was performed or the last inspection date is unknown, then within 30 days after the effective date of this AD.
8 For AWL No. 28AWL35, Cushion Clamps and Teflon Sleeving Installed on Outof-Tank Wire Bundles Installed on Brackets that are Mounted Directly on the Fuel Tanks: Within 144 months after the most recent inspection was performed as specified in AWL No. 28AWL35 or within 144
months after accomplishment of the actions specified in Boeing Service Bulletin 767
57A0102, whichever is later. If no initial inspection was performed or the last inspection date is unknown, then within 12
months after the effective date of this AD.
9 For AWL No. 28AWL37, FQIS BITE
Test Auxiliary Center Tank Circuit Test:
For Model 767300F airplanes L/N 1094 and subsequent, within 750 flight hours after the most recent inspection was performed as specified in AWL No. 28AWL37, or within 30 days after the effective date of this AD if no initial inspection has been performed or the last inspection date is unknown.
10 For AWL No. 28AWL38, Fuel Level Sensing System FLSS Dry Capacitance Test: For Model 767300F
airplanes L/N 1096 and subsequent, within 750 flight hours after the most recent inspection was performed as specified in AWL No. 28AWL38, or within 30 days after the effective date of this AD if no initial inspection has been performed or the last inspection date is unknown.
11 For AWL No. 28AWL101, Engine Fuel Suction Feed Operational Test: Within 7,500 flight hours or 36 months, whichever occurs first since the most recent inspection was performed as specified in AWL No. 28
AWL101, or within 30 days after the effective date of this AD if no initial inspection has been performed or the last inspection date is unknown.
12 For AWL No. 28AWL102, Fuel Quantity Indicating System FQISLow Fuel and Fuel Config Indication Test:
Within 750 flight hours after the most recent inspection was performed as specified in AWL No. 28AWL102; or within 750 flight hours after accomplishment of the actions specified in Boeing Service Bulletin 76731
0295 or Boeing Service Bulletin 76731
0302, as applicable; whichever is later. If no
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initial inspection was performed or the last inspection date is unknown, then within 30
days after the effective date of this AD.
13 For AWL No. 47AWL04, Nitrogen Generation System NGSNitrogenEnriched Air NEA Distribution Ducting:
For L/N 993 and subsequent and all airplanes that have incorporated Boeing Service Bulletin 767470001, within the applicable interval specified in AWL No. 47AWL04
since the most recent inspection was performed as specified in AWL No. 47
AWL04. If no initial inspection was performed or the last inspection date is unknown, then within 4 months after the effective date of this AD.
14 For AWL No. 47AWL05, Nitrogen Generation System NGSCross Vent Check Valve: For L/N 993 and subsequent and all airplanes that have incorporated Boeing Service Bulletin 767470001, within the applicable interval specified in AWL No. 47
AWL05 since the most recent inspection was performed as specified in AWL No. 47
AWL05. If no initial inspection was performed or the last inspection date is unknown, then within 4 months after the effective date of this AD.
h Additional Acceptable Wire Types and Sleeving As an option, when accomplishing the actions required by paragraph g of this AD, the changes specified in paragraphs h1
and 2 of this AD are acceptable.
1 Where AWL No. 28AWL09 identifies wire types BMS 1348, BMS 1358, and BMS
1360, the following acceptable wire types and cables can be added to AWL No. 28
AWL09: MILW22759/16, SAE AS22759/
16 formerly M22759/16, MILW22759/32, SAE AS22759/32 formerly M22759/32, MILW22759/34, SAE AS22759/34
formerly M22759/34, MILW22759/41, SAE AS22759/41 formerly M22759/41, MILW22759/86, SAE AS22759/86
formerly M22759/86, MILW22759/87, SAE AS22759/87 formerly M22759/87, MILW22759/92, and SAE AS22759/92
formerly M22759/92; and MILC27500
and NEMA WC 27500 cables that are constructed from these military or SAE
specification wire types, as applicable.
2 Where AWL No. 28AWL09 identifies TFE2X Standard wall for wire sleeving, the following sleeving materials are acceptable:
Roundit 2000NX and Varglas Type HO, HP, or HM, Grade A.
i No Alternative Actions, Intervals, or Critical Design Configuration Control Limitations CDCCLs After the existing maintenance or inspection program has been revised as required by paragraph g of this AD, no alternative actions e.g., inspections, intervals, or CDCCLs may be used unless the actions, intervals, and CDCCLs are approved as an alternative method of compliance AMOC in accordance with the procedures specified in paragraph k of this AD.
j Terminating Action for Certain AD
Requirements Accomplishment of the revision required by paragraph g of this AD terminates the
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requirements specified in paragraphs j1
through 7 of this AD for that airplane:
1 The revision required by paragraphs g and h of AD 20081101 R1.
2 The revision required by paragraph h of AD 20100610.
3 The revision required by paragraph k of AD 20112505.
4 The revision required by paragraph n of AD 20132502.
5 The revision required by paragraph g of AD 20140809.
6 The revision required by paragraph h of AD 20142002.
7 The revision required by paragraphs i3i and ii of AD 20182013.
k Alternative Methods of Compliance AMOCs 1 The Manager, Seattle ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph l1 of this AD. Information may be emailed to: 9ANM-Seattle-ACO-AMOC-Requests@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
3 An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by The Boeing Company Organization Designation Authorization ODA that has been authorized by the Manager, Seattle ACO Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD.
l Related Information 1 For more information about this AD, contact Rebel Nichols, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 2062313556;
email: rebel.nichols@faa.gov.
2 For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services C&DS, 2600 Westminster Blvd., MC 110SK57, Seal Beach, CA 907405600;
telephone 5627971717; internet https
www.myboeingfleet.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 2062313195.
Issued on February 12, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202103858 Filed 22521; 8:45 am BILLING CODE 491013P

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