Fri, May 28, 2021
AD 2021-10-13 Prompted By A Report Indicating That Several Failure Modes Of The NWS System May Cause Loss Of Feedback
The FAA is superseding Airworthiness Directive (AD) 2015-17-08, which applied to certain Bombardier, Inc. Model DHC-8-400 series airplanes.
AD 2015-17-08 required installing new cable assemblies with a pull-down resistor. This AD requires modifications to the nose wheel steering (NWS) system. This AD was prompted by a report indicating that several failure modes of the NWS system may cause the loss of feedback from both rotary variable differential transformers to the steering control unit. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective July 1, 2021.
Supplementary Information: Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued TCCA AD CF-2020-28, dated August 14, 2020 (also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI), to correct an unsafe condition for certain De Havilland Aircraft of Canada Limited Model DHC-8-401 and -402 airplanes. You may examine the MCAI in the AD docket on the internet at www.regulations.gov by searching for and locating Docket No. FAA-2021-0018.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2015-17-08, Amendment 39-18241 (80 FR 51459, August 25, 2015) (AD 2015-17-08). AD 2015-17-08 applied to certain Bombardier, Inc. Model DHC-8-400 series airplanes. The NPRM published in the Federal Register on February 24, 2021 (86 FR 11175). The NPRM was prompted by a report indicating that several failure modes of the NWS system may cause the loss of feedback from both rotary variable differential transformers to the steering control unit. The NPRM proposed to require modifications to the NWS system. The FAA is issuing this AD to address failure modes of the NWS system, which could lead to NWS runaway, loss of directional control of the airplane, and possible consequent runway excursion. See the MCAI for additional background information.
More News
Also: Vertical Flight Society, NBAA Maintenance Conference, GA Honored, AMT Scholarship For the first time, students from Embry-Riddle’s Daytona Beach, Florida, campus took t>[...]
Hazardous Weather Information Summary of significant meteorological information (SIGMET/WS), convective significant meteorological information (convective SIGMET/WST), urgent pilot>[...]
"The need for innovation at speed and scale is greater than ever. The X-62A VISTA is a crucial platform in our efforts to develop, test and integrate AI, as well as to establish AI>[...]
(FAA) Inspector Observed That Both Fuel Tanks Were Intact And That Only A Minimal Amount Of Fuel Remained In Each Analysis: According to the pilot, approximately 8 miles from the d>[...]
“Pyka’s Pelican Cargo is unlike any other UAS solution on the market for contested logistics. We assessed a number of leading capabilities and concluded that the Pelica>[...]