FAA Issues Emergency AD For A320 Family Airplanes | 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

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 05.23.16

Airborne 05.24.16

Airborne 05.25.16

Airborne 05.26.16

Airborne 05.27.16

Airborne Hi-Def On YouTube

Airborne 05.23.16

Airborne 05.24.16

Airborne 05.25.16

Airborne 05.26.16

Airborne 05.27.16

AEA2016 LIVE Aero-TV: 04/27-0830ET, 04/28-1400ET, 04/29-1100ET

Sun 'n Fun 2016 Innovation Preview on Vimeo!

Sun 'n Fun 2016 Innovation Preview on YouTube!

Wed, Dec 19, 2012

FAA Issues Emergency AD For A320 Family Airplanes

Move Related To EASA Emergency AD For Angle Of Attack Sensors

The FAA has issued an Emergency AD (2012-26-51) for all Airbus Model A318, A319, A320, and A321 series airplanes. The AD was prompted by a report indicating that an airplane equipped with Angle of Attack (AoA) sensors (with conic plates installed) recently experienced blockage of all sensors during climb, leading to autopilot disconnection and activation of the alpha protection (Alpha Prot) when Mach number was increased. The FAA said it is issuing the AD to prevent reduced control of the airplane.

EASA advised the FAA that an Airbus Model A330 airplane equipped with Angle of Attack (AoA) sensors installed with conic plates recently experienced a similar condition, and issued EASA Emergency Airworthiness Directive 2012-0264-E, dated December 17, 2012. Based on the results of subsequent analysis, it is suspected that these conic plates may have contributed to the event. Investigations are ongoing to determine what caused the blockage of these AoA sensors.

Blockage of two or three AoA sensors at the same angle may cause the Alpha Prot of the normal law to activate. Under normal flight conditions (in normal law), if the Alpha Prot activates and Mach number increases, the flight control laws order a pitch down of the airplane that the flight crew might not be able to counteract with a side stick deflection, even in the full backward position. 

This condition, if not corrected, could result in reduced control of the airplane. EASA also issued Emergency AD 2012-0258-E, dated December 4, 2012, for Airbus Model A330 and A340 airplanes to require an amendment of the AFM to ensure that flight crews apply the applicable emergency procedure.

AoA sensor conic plates of similar design are also installed on Model A320 series airplanes. Installation of these AoA sensor conic plates was required for Model A318, A319, A320, and A321 series airplanes by EASA AD 2012-0236, dated November 9, 2012 (corrected November 12, 2012). Subsequently, EASA issued AD 2012-0236R1, dated December 17, 2012, to remove the requirement to install AoA sensor conic plates.

The FAA's AD requires revising the Emergency Procedures section of the Airbus A318/A319/A320/A321 Airplane Flight Manual (AFM) to incorporate Airbus A318/A319/A320/A321 Temporary Revision TR286, Issue 1.0, dated December 17, 2012, to advise the flight crew of emergency procedures for addressing AOA sensor blockage. This AD also provides for optional terminating action for the AFM revision, which involves replacing AoA sensor conic plates with AoA sensor flat plates.

FMI: AD

Advertisement

More News

Toledo Police Helicopter May Be Grounded

Department Seeks Grants To Help Keep Aircraft Flying The police department in Toledo, OH may be forced to ground its helicopter unless it is able to identify a grant for the $300,0>[...]

Bill Gordon Lost In Hudson River P-47 Ditching

Despite What Appeared To Be A Decent Ditching Effort, An Outstanding Pilot Was Lost The airshow community has suffered its second tragedy in nearly as many weeks as long-time warbi>[...]

Aero-News: Quote Of The Day (05.29.16)

"Putting the world's largest satellite constellation into orbit is an enormous task and Arianespace is ideally suited to launch the initial constellation, allowing OneWeb to start >[...]

ANN FAQ: How To Get YOUR News Out On Aero-News

Good News, Bad News... It's ALL News As the preeminent online aviation news resource out there, the editorial staff at Aero-News sees a large number of news releases. We look at al>[...]

Dubai-Based Business Jet Operator Enhances In-Flight Wi-Fi Services

Empire Aviation Group Selects Honeywell Technologies For Its Entire Fleet Honeywell has signed an agreement with Empire Aviation Group to provide its full suite of GoDirect connect>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2016 Web Development & Design by Pauli Systems, LC