AD: Airbus Helicopters | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Airborne Unlimited-

Airborne Unmanned-
Alt. Wednesdays

Airborne Flight Training-Alt. Wednesdays

Airborne Unlimited-

Airborne Special Programs!
Airborne-YouTube Airborne Unlimited--11.23.20 Airborne-Unmanned--11.18.20   Airborne-Flight Training--11.04.20 Airborne Unlimited--11.20.20  The 2020 Avionics Innovation Preview!

Airborne On ANN

Airborne Unlimited--11.23.20


Airborne-Flight Training--11.04.20

Airborne Unlimited--11.20.20

Airborne's Annual April 1st Episode

Sun, Nov 22, 2020

AD: Airbus Helicopters

AD 2020-23-06 Requires Inspecting The Main Rotor (M/R) Hub Assembly (Hub) Phonic Wheel Lock Washer

The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS332C, AS332C1, AS332L, and AS332L1 helicopters.

This AD requires inspecting the main rotor (M/R) hub assembly (hub) phonic wheel lock washer (lock washer) for correct installation and depending on the outcome, repairing or replacing the M/R hub. This AD was prompted by reported occurrences of M/R revolutions per minute (“NR”) sensor fluctuations. The actions of this AD are intended to address an unsafe condition on these products. This AD is effective December 24, 2020.

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 Airbus Helicopters Model AS332C, AS332C1, AS332L, and AS332L1 helicopters with an M/R hub part number (P/N) 332A31-0001-00, 332A31-0001-01, 332A31-0001-02, 332A31-0001-03, 332A31-0001-04, 332A31-0001-05, or 332A31-0001-06 installed. The NPRM published in the Federal Register on July 16, 2020 (85 FR 43160). The NPRM proposed to require removing at least one M/R “NR” sensor and borescope inspecting the phonic wheel lock washer for correct height of the lock washer. The NPRM also proposed to prohibit the installation of an affected M/R hub unless it has successfully passed the required inspection for correct lock washer installation.

The proposed requirements were intended to prohibit the incorrect assembly of the M/R hub, which, if not corrected, could result in failure of the M/R hub components and subsequent loss of control of the helicopter.

The NPRM was prompted by EASA AD No. 2019-0172, dated July 18, 2019, issued by EASA, which is the Technical Agent for the Member States of the European Union. This EASA AD was issued to correct an unsafe condition for Airbus Helicopters Model AS 332 C, AS 332 C1, AS 332 L, and AS 332 L1 helicopters with an M/R hub P/N 332A31-0001-00, 332A31-0001-01, 332A31-0001-02, 332A31-0001-03, 332A31-0001-04, 332A31-0001-05, or 332A31-0001-06 installed. EASA advises of reported occurrences of “NR” sensor fluctuation and subsequent investigation identifying incorrect positioning of the M/R hub phonic wheel due to incorrect installation of the M/R mast nut press screws during maintenance of the M/R hubs. EASA advises that this condition, if not detected and corrected, could lead to failure of M/R hub components, possibly resulting in loss of helicopter control. Accordingly, the EASA AD requires a one-time inspection of the lock washer position and depending on findings, replacing the M/R hub.



More News

ANN's Daily Aero-Linx (11.23.20)

Aero Linx: The Canadian Sport Parachuting Association (CSPA) The Canadian Sport Parachuting Association (CSPA), through affiliation with the Aero Club of Canada (ACC), is Canada&rs>[...]

Klyde Morris (11.23.20)

Klyde Knows That Even An Airplane Can't Help You Escape The Pandemic... FMI:>[...]

Aero-News: Quote of the Day (11.23.20)

“What the team achieved today in recovering Electron’s first stage is no mean feat. It took a monumental effort from many teams across Rocket Lab, and it’s exciti>[...]

Airborne-Unmanned 11.18.20: DJI AGRAS T20, DoT BEYOND, Workhorse TC App

Also: Autel and DroneSense, Pennsylvania CAP Wing, Airspace Link, Beringer Aero DJI is aiming at the farming market with its latest agriculture drone, the DJI AGRAS T20. This agric>[...]

Aero-News: Quote of the Day (11.24.20)

"The development of airworthy, durable, and reliable unmanned aircraft is a crucial step forward for this innovative sector. Type certification will help increase both public and r>[...]

blog comments powered by Disqus





© 2007 - 2020 Web Development & Design by Pauli Systems, LC