Airworthiness Directive · Amendment 39-21031 · Landing gear
Honda Aircraft Company LLC
This AD applies to Honda Aircraft Company LLC Model HA-420 airplanes, serial numbers (S/Ns) 42000011 through 42000184, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain Honda Aircraft Company LLC (Honda) Model HA-420 airplanes. This AD requires inspecting the wheel speed transducer (WST) wiring harness, replacing the wiring harness if necessary, installing wiring hardware, and rerouting the WST wiring harness on both the left and right brake assemblies. This AD also requires revising the Abnormal Procedures section of the airplane flight manual (AFM) and quick reference handbook (QRH). This AD was prompted by reports of damage to the wiring harness due to excessive slack in the wiring harness assembly that allows contact with the main landing gear tire and by the determination that the AFMs and QRHs contain incorrect procedures for anti-skid braking system failures. The FAA is issuing this AD to address the unsafe condition on these products.
Comply with this AD within the compliance time specified, unless already done.
Before further flight after April 6, 2020 (the effective date of this AD), revise your AFM and your QRH as specified below.
(1) For airplanes with S/Ns 42000012 through 42000125 without SB-420-55-001: Remove the Abnormal Procedure pages for ANTI-SKID Fail and replace with Pages 3A-178 through 3A-180 from Section 3A—Abnormal Procedures in Honda Aircraft Company Airplane Flight Manual, Model HA-420, Part No.: HJ1-29000-003-001, Revision D, dated December 12, 2019.
(2) For airplanes with S/Ns 42000012 through 42000125 without SB-420-55-001: Remove the Abnormal Procedure pages for ANTI-SKID FAIL and replace with Page A-126 and Page A-127 from Model HA-420, HJ1-29000-007-001, Volume 1 of 2, Quick Reference Handbook, Normal Procedures, Revision D, dated December 12, 2019.
(3) For airplanes with S/Ns 42000011, 42000012 through 42000125 with SB-420-55-001, and 42000126 through 42000184: Remove the Abnormal Procedure pages for ANTI-SKID FAIL and replace with Pages 3A-178 through 3A-180 from Section 3A—Abnormal Procedures in Honda Aircraft Company Airplane Flight Manual, Model HA-420, Part No.: HJ1-29001-003-001, Revision B1, dated December 12, 2019.
(4) For airplanes with S/Ns 42000011, 42000012 through 42000125 with SB-420-55-001, and 42000126 through 42000184: Remove the Abnormal Procedure pages for ANTI-SKID FAIL and replace with Page A-124 and Page A-125 from Model HA-420, HJ1-29001-007-001, Quick Reference Handbook, Revision B, dated December 12, 2019.
Within 90 days after April 6, 2020 (the effective date of this AD), do the actions specified in steps 1 through 7 of the Accomplishment Instructions in Honda Aircraft Company Service Bulletin Alert SB-420-32-008, Revision B, dated November 16, 2019.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
