AD: The Boeing Company Airplanes | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-02.24.22

Airborne-UnManned-01.25.22

Airborne-Unlimited-01.26.22

Airborne Special Edition-01.20.22

Airborne Special Edition-01.21.22

ANN LIVE Coverage of AEA 2021 Is Archived at www.airborne-live.net

Sun, Jan 02, 2022

AD: The Boeing Company Airplanes

AD 2021-25-09 Prompted By Reports Of Nuisance Stick Shaker Activation

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-200 and -200C series airplanes.

This AD was prompted by reports of nuisance stick shaker activation while the airplane was accelerating to cruise speed at the top of a climb. Investigation revealed that the activation was caused when the angle of attack (AOA) (also known as angle of airflow) sensor vanes froze and malfunctioned due to insufficient heat in certain AOA sensors to prevent ice buildup. This AD requires inspecting the AOA sensors for certain part numbers or vane shapes, and replacing any affected AOA sensor with a new or serviceable sensor. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective February 1, 2022.

Supplementary Information: The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain The Boeing Company Model 737-200 and -200C series airplanes.

The NPRM published in the Federal Register on August 9, 2021 (86 FR 43454). The NPRM was prompted by reports of nuisance stick shaker activation while the airplane was accelerating to cruise speed at the top of a climb. Investigation revealed that the activation was caused when the AOA sensor vanes froze and malfunctioned due to insufficient heat in certain AOA sensors to prevent ice buildup. In the NPRM, the FAA proposed to require inspecting the AOA sensors for certain part numbers or vane shapes, and replacing any affected AOA sensor with a new or serviceable sensor.

The FAA is issuing this AD to prevent the AOA sensor vanes from being immobilized, which could result in unreliable or inaccurate AOA sensor data being transmitted to airplane systems, and consequent loss of control of the airplane.

FMI: www.regulations.gov

Advertisement

More News

Aero-News: Quote of the Day (01.23.22)

“The New York metropolitan area has been the largest market trailing 3 years for Jet Edge and compliments our already established Signature facility in Los Angeles. New York >[...]

ANN's Daily Aero-Term (01.23.22): Line Up And Wait (LUAW)

Line Up And Wait (LUAW) Used by ATC to inform a pilot to taxi onto the departure runway to line up and wait. It is not authorization for takeoff. It is used when takeoff clearance >[...]

ANN's Daily Aero-Linx (01.23.22)

Aero Linx: Aviation Suppliers Association (ASA) Established February 25, 1993, the Aviation Suppliers Association (ASA), based in Washington, D.C., is a not-for-profit association,>[...]

Airborne-Unmanned 01.19.21: Zeva Zero Flies, UAS Taxi Outlook, Censys

Also: Masten Expands, Sonex Aerospace Sold, Collier Nominations, SuperBowl TFR Zeva has completed the first untethered flight test for its Zero flying wing airframe, where the airc>[...]

Aero-News: Quote of the Day (01.24.22)

"Wow, I can see Dubai Expo." and "Finally, here come my friends." Source: Just some of the signage that accompanied and Emirates announcement by once again placing a flight attenda>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2022 Web Development & Design by Pauli Systems, LC