2023-12-15: Navigation

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive (AD) 2022-09-18, Amendment 39-22038 (87 FR 31097, May 23, 2022), and b. Adding the following new AD: 2023-12-15 The Boeing Company: Amendment 39-22473; Docket No. FAA-2023-0923; Project Identifier AD-2022-01432-T. (a) Effective Date This airworthiness directive (AD) is effective June 21, 2023. (b) Affected ADs This AD replaces AD 2022-09-18, Amendment 39-22038 (87 FR 31097, May 23, 2022) (AD 2022-09-18). (c) Applicability This AD applies to all The Boeing Company airplanes identified in paragraphs (c)(1) through (9) of this AD, certificated in any category. (1) Model 707-100 Long Body, -200, -100B Long Body, and -100B Short Body series airplanes, and Model 707-300, -300B, -300C, and -400 series airplanes. (2) Model 717-200 airplanes. (3) Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes. (4) Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8-51, DC-8-52, DC-8-53, DC-8-55, DC-8F-54, DC-8F-55, DC-8-61, DC-8-62, DC-8-63, DC-8-61F, DC-8-62F, DC-8-63F, DC-8-71, DC-8-72, DC-8-73, DC-8-71F, DC-8-72F, and DC-8-73F airplanes. (5) Model DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A, C-9B), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, and DC-9-51 airplanes. (6) Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, and DC-10-40F airplanes. (7) Model MD-10-10F and MD-10-30F airplanes. (8) Model MD-11 and MD-11F airplanes. (9) Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 airplanes. (d) Subject Air Transport Association (ATA) of America Code 34, Navigation. (e) Unsafe Condition This AD was prompted by a determination that radio altimeters cannot be relied upon to perform their intended function if they experience interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band), and a determination that during approach, landings, and go-arounds, as a result of this interference, certain airplane systems may not properly function, resulting in increased flightcrew workload while on approach with the flight director, autothrottle, or autopilot engaged. The FAA is issuing this AD to address 5G C-Band interference that could result in increased flightcrew workload and could lead to reduced ability of the flightcrew to maintain safe flight and landing of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Definitions (1) For purposes of this AD, a "5G C-Band mitigated airport" (5G CMA) is an airport at which the telecommunications companies have agreed to voluntarily limit their 5G deployment at the request of the FAA, as identified by an FAA Domestic Notice. (2) For purposes of this AD, a "radio altimeter tolerant airplane" is one for which the radio altimeter, as installed, demonstrates the tolerances specified in paragraphs (g)(2)(i) and (ii) of this AD, using a method approved by the FAA. (i) Tolerance to radio altimeter interference, for the fundamental emissions (3.7-3.98 GHz), at or above the power spectral density (PSD) curve threshold specified in figure 1 to paragraph (g)(2)(i) of this AD. BILLING CODE 4910-13-P Figure 1 to paragraph (g)(2)(i)- Fundamental Effective Isotropic PSD at Outside Interface of Aircraft Antenna ER21JN23.120 (ii) Tolerance to radio altimeter interference, for the spurious emissions (3.7-3.98 GHz), at or above the PSD curve threshold specified in figure 2 to paragraph (g)(2)(ii) of this AD. Figure 2 to paragraph (g)(2)(ii)- Spurious Effective Isotropic PSD at Outside Interface of Aircraft Antenna ER21JN23.121 (3) For purposes of this AD, a "non-radio altimeter tolerant airplane" is one for which the radio altimeter, as installed, does not demonstrate the tolerances specified in paragraphs (g)(2)(i) and (ii) of this AD. (h) Retained Airplane Flight Manual (AFM) Revision-Limitations This paragraph restates the requirements of paragraph (g) of AD 2022-09-18. (1) For airplanes identified in paragraphs (c)(1) and (c)(3) through (6) of this AD: Within 2 days after May 23, 2022 (the effective date of AD 2022-09-18), revise the Limitations Section of the existing AFM to include the information specified in figure 3 to paragraph (h)(1) of this AD. This may be done by inserting a copy of figure 3 to paragraph (h)(1) of this AD into the existing AFM. Figure 3 to paragraph (h)(1)- AFM Limitations Revision for Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10 ER21JN23.122 (2) For airplanes identified in paragraphs (c)(2), (7), and (8) of this AD: Within 2 days after May 23, 2022 (the effective date of AD 2022-09-18), revise the Limitations Section of the existing AFM to include the information specified in figure 4 to paragraph (h)(2) of this AD. This may be done by inserting a copy of figure 4 to paragraph (h)(2) of this AD into the Limitations Section of the existing AFM. Figure 4 to paragraph (h)(2)- AFM Limitations Revision for Model 717, MD-10, and MD-11 ER21JN23.123 (3) For airplanes identified in paragraph (c)(9) of this AD: Within 2 days after May 23, 2022 (the effective date of AD 2022-09-18), revise the Limitations Section of the existing AFM to include the information specified in figure 5 to paragraph (h)(3) of this AD. This may be done by inserting a copy of figure 5 to paragraph (h)(3) of this AD into the Limitations Section of the existing AFM. Figure 5 to paragraph (h)(3)- AFM Limitations Revision for Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 ER21JN23.124 (i) Retained AFM Revision-Operating Procedures This paragraph restates the requirements of paragraph (h) of AD 2022-09-18. (1) For airplanes identified in paragraphs (c)(1) and (3) through (6) of this AD: Within 2 days after May 23, 2022 (the effective date of AD 2022-09-18), revise the Operating Procedures Section of the existing AFM to include the information specified in figure 6 to paragraph (i)(1) of this AD. This may be done by inserting a copy of figure 6 to paragraph (i)(1) of this AD into the Operating Procedures Section of the existing AFM. Figure 6 to paragraph (i)(1)- AFM Operating Procedures Revision for Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10 ER21JN23.125 (2) For airplanes identified in paragraph (c)(2) of this AD: Within 2 days after May 23, 2022 (the effective date of AD 2022-09-18), revise the Operating Procedures Section of the existing AFM to include the information specified in figure 7 to paragraph (i)(2) of this AD. This may be done by inserting a copy of figure 7 to paragraph (i)(2) of this AD into the Operating Procedures Section of the existing AFM. Figure 7 to paragraph (i)(2)- AFM Operating Procedures Revision for Model 717 ER21JN23.126 (3) For airplanes identified in paragraph (c)(7) of this AD: Within 2 days after May 23, 2022 (the effective date of AD 2022-09-18), revise the Operating Procedures Section of the existing AFM to include the information specified in figure 8 to paragraph (i)(3) of this AD. This may be done by inserting a copy of figure 8 to paragraph (i)(3) of this AD into the Operating Procedures Section of the existing AFM. Figure 8 to paragraph (i)(3)- AFM Operating Procedures Revision for Model MD-10 ER21JN23.127 ER21JN23.128 ER21JN23.129 ER21JN23.130 ER21JN23.131 (4) For airplanes identified in paragraph (c)(8) of this AD: Within 2 days after the effective date of this AD, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 9 to paragraph (i)(4) of this AD. This may be done by inserting a copy of figure 9 to paragraph (i)(4) of this AD into the Operating Procedures Section of the existing AFM. Figure 9 to paragraph (i)(4)- AFM Operating Procedures Revision for Model MD-11 ER21JN23.132 ER21JN23.133 ER21JN23.134 ER21JN23.135 ER21JN23.136 ER21JN23.137 (5) For airplanes identified in paragraph (c)(9) of this AD: Within 2 days after the effective date of this AD, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 10 to paragraph (i)(5) of this AD. This may be done by inserting a copy of figure 10 to paragraph (i)(5) of this AD into the Operating Procedures Section of the existing AFM. Figure 10 to paragraph (i)(5)- AFM Operating Procedures Revision for Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 ER21JN23.138 (j) New Requirement: AFM Limitations Revision for Non-Radio Altimeter Tolerant Airplanes (1) For non-radio altimeter tolerant airplanes identified in paragraphs (c)(1) and (c)(3) through (6) of this AD, do the actions specified in paragraphs (j)(1)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Limitations Section of the existing AFM to include the information specified in figure 11 to paragraph (j)(1) of this AD. This may be done by inserting a copy of figure 11 to paragraph (j)(1) of this AD into the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (h)(1) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 11 to paragraph (j)(1) of this AD, remove the AFM revision required by paragraph (h)(1) of this AD. Figure 11 to paragraph (j)(1)- AFM Limitations Revision for Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10 ER21JN23.139 (2) For non-radio altimeter tolerant airplanes identified in paragraphs (c)(2), (7), and (8) of this AD, do the actions specified in paragraphs (j)(2)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Limitations Section of the existing AFM to include the information specified in figure 12 to paragraph (j)(2) of this AD. This may be done by inserting a copy of figure 12 to paragraph (j)(2) of this AD into the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (h)(2) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 12 to paragraph (j)(2) of this AD, remove the AFM revision required by paragraph (h)(2) of this AD. Figure 12 to paragraph (j)(2)- AFM Limitations Revision for Model 717, MD-10, and MD-11 ER21JN23.140 (3) For non-radio altimeter tolerant airplanes identified in paragraph (c)(9) of this AD, do the actions specified in paragraphs (j)(3)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Limitations Section of the existing AFM to include the information specified in figure 13 to paragraph (j)(3) of this AD. This may be done by inserting a copy of figure 13 to paragraph (j)(3) of this AD into the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (h)(3) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 13 to paragraph (j)(3) of this AD, remove the AFM revision required by paragraph (h)(3) of this AD. Figure 13 to paragraph (j)(3)- AFM Limitations Revision for Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 ER21JN23.141 (k) New Requirement: AFM Limitations Revision for Radio Altimeter Tolerant Airplanes (1) For radio altimeter tolerant airplanes identified in paragraphs (c)(1) and (c)(3) through (6) of this AD, do the actions specified in paragraphs (k)(1)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Limitations Section of the existing AFM to include the information specified in figure 14 to paragraph (k)(1) of this AD. This may be done by inserting a copy of figure 14 to paragraph (k)(1) of this AD into the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (h)(1) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 14 to paragraph (k)(1) of this AD, remove the AFM revision required by paragraph (h)(1) of this AD. Figure 14 to paragraph (k)(1)- AFM Limitations Revision for Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10 ER21JN23.142 (2) For radio altimeter tolerant airplanes identified in paragraphs (c)(2), (7), and (8) of this AD, do the actions specified in paragraphs (k)(2)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Limitations Section of the existing AFM to include the information specified in figure 15 to paragraph (k)(2) of this AD. This may be done by inserting a copy of figure 15 to paragraph (k)(2) of this AD into the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (h)(2) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 15 to paragraph (k)(2) of this AD, remove the AFM revision required by paragraph (h)(2) of this AD. Figure 15 to paragraph (k)(2)- AFM Limitations Revision for Model 717, MD-10, and MD-11 ER21JN23.143 (3) For radio altimeter tolerant airplanes identified in paragraph (c)(9) of this AD, do the actions specified in paragraphs (k)(3)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Limitations Section of the existing AFM to include the information specified in figure 16 to paragraph (k)(3) of this AD. This may be done by inserting a copy of figure 16 to paragraph (k)(3) of this AD into the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (h)(3) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 16 to paragraph (k)(3) of this AD, remove the AFM revision required by paragraph (h)(3) of this AD. Figure 16 to paragraph (k)(3)- AFM Limitations Revision for Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 ER21JN23.144 (l) New Requirement: AFM Operating Procedures Revision (1) For airplanes identified in paragraphs (c)(1) and (3) through (6) of this AD, do the actions specified in paragraphs (l)(1)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 17 to paragraph (l)(1) of this AD. This may be done by inserting a copy of figure 17 to paragraph (l)(1) of this AD into the Operating Procedures Section of the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (i)(1) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 17 to paragraph (l)(1) of this AD, remove the AFM revision required by paragraph (i)(1) of this AD. Figure 17 to paragraph (1)(1)- AFM Operating Procedures Revision for Model 707, 727, DC-8, DC-9 (except DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87)), and DC-10 ER21JN23.145 (2) For airplanes identified in paragraph (c)(2) of this AD, do the actions specified in paragraphs (l)(2)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 18 to paragraph (l)(2) of this AD. This may be done by inserting a copy of figure 18 to paragraph (l)(2) of this AD into the Operating Procedures Section of the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (i)(2) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 18 to paragraph (l)(2) of this AD, remove the AFM revision required by paragraph (i)(2) of this AD. Figure 18 to paragraph (l)(2)- AFM Operating Procedures Revision for Model 717 ER21JN23.146 (3) For airplanes identified in paragraph (c)(7) of this AD, do the actions specified in paragraphs (l)(3)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 19 to paragraph (l)(3) of this AD. This may be done by inserting a copy of figure 19 to paragraph (l)(3) of this AD into the Operating Procedures Section of the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (i)(3) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 19 to paragraph (l)(3) of this AD, remove the AFM revision required by paragraph (i)(3) of this AD. Figure 19 to paragraph (l)(3)- AFM Operating Procedures Revision for Model MD-10 ER21JN23.147 ER21JN23.148 ER21JN23.149 ER21JN23.150 ER21JN23.151 ER21JN23.152 (4) For airplanes identified in paragraph (c)(8) of this AD, do the actions specified in paragraphs (l)(4)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 20 to paragraph (l)(4) of this AD. This may be done by inserting a copy of figure 20 to paragraph (l)(4) of this AD into the Operating Procedures Section of the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (i)(4) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 20 to paragraph (l)(4) of this AD, remove the AFM revision required by paragraph (i)(4) of this AD. Figure 20 to paragraph (l)(4)- AFM Operating Procedures Revision for Model MD-11 ER21JN23.153 ER21JN23.154 ER21JN23.155 ER21JN23.156 ER21JN23.157 ER21JN23.158 (5) For airplanes identified in paragraph (c)(9) of this AD, do the actions specified in paragraphs (l)(5)(i) and (ii) of this AD. (i) On or before June 30, 2023, revise the Operating Procedures Section of the existing AFM to include the information specified in figure 21 to paragraph (l)(5) of this AD. This may be done by inserting a copy of figure 21 to paragraph (l)(5) of this AD into the Operating Procedures Section of the existing AFM. Incorporating the AFM revision required by this paragraph terminates the AFM revision required by paragraph (i)(5) of this AD. (ii) Before further flight after incorporating the limitations specified in figure 21 to paragraph (l)(5) of this AD, remove the AFM revision required by paragraph (i)(5) of this AD. Figure 21 to paragraph (l)(5)- AFM Operating Procedures Revision for Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 ER21JN23.159 (m) Alternative Methods of Compliance (AMOCs) (1) The Manager, Operational Safety 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 Operational Safety Branch, send it to the attention of the person identified in paragraph (n) of this AD. Information may be emailed to: AMOC@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) AMOCs approved for AD 2021-23-12, Amendment 39-21810 (86 FR 69984, December 9, 2021) providing relief for specific radio altimeter installations are approved as AMOCs for the requirements specified in paragraph (h) of this AD until June 30, 2023. (n) Related Information For more information about this AD, contact Brett Portwood, Continued Operational Safety Technical Advisor, COS Program Management Section, Operational Safety Branch, FAA, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 817-222-5390; email: operationalsafety@faa.gov . (o) Material Incorporated by Reference None. Issued on June 9, 2023. Michael Linegang, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023-13155 Filed 6-16-23; 11:15 am]BILLING CODE 4910-13-P