FAA Issues SAFO For L-39 Canopies | 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

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne-Unmanned w/AUVSI

Airborne On ANN

AMA 05.25.17

Airborne
05.22.17

Airborne
05.23.17

Airborne
05.24.17

Airborne
05.25.17

Airborne
05.26.17

Airborne-Unmanned 05.23.17

Airborne-YouTube

AMA 05.25.17

Airborne
05.22.17

Airborne
05.23.17

Airborne
05.24.17

Airborne
05.25.17

Airborne
05.26.17

Airborne-Unmanned 05.23.17

XPONENTIAL Innovation Preview -- www.allthingsunmanned.com

Wed, Feb 06, 2013

FAA Issues SAFO For L-39 Canopies

Possible In-Flight Separation Prompts The Safety Alert

The FAA has released a Safety Alert for Operators (SAFO) directed to owners, operators, repair stations, and mechanics holding Airframe and Powerplant (A&P) certificates, concerning service difficulties and safety issues associated with the Aero Vodochody L-39C and L-39ZA variants. According to the agency, aircrews have experienced one or both canopies separating from the aircraft, or partially opening, while in-flight.

These instances have occurred with a CANOPY LOCKED indication from the aircraft’s annunciator panel warning light. Analyses of these events show a potential for a false indication from the canopy unlock light. Some of the possible causes for this problem include misalignment of the microswitches sensing the canopy position; failure of the latches on the right side of the canopy to fully engage, possibly caused by a physical obstruction or foreign object interfering with the latches; the canopy hold-open bar becoming distorted and obstructing the right-side canopy latches; and the canopy latches becoming misaligned, subject to wear, corrosion, faulty components, or improper maintenance.

It is advised that the actions below be accomplished every 100 hours of flight time, or as incorporated into the aircraft’s inspection program:

  • Inspect the micro switches in the front and rear canopy lock mechanism and make sure they are functioning and aligned per instructions in the Aero Vodochody factory maintenance manual. Perform these checks with the canopy both installed and removed.
  • Inspect the canopy for any foreign objects which may interfere with the right side latching mechanism.
  • Inspect the condition of the hold-open bars at the front and rear canopies. The bars are located on the right rear portion of the front canopy or on the right front section of the rear canopy. They should not be bent, distorted, or otherwise damaged.
  • With the canopy removed, inspect the canopy latches and verify the latches are holding and the springs are tight per procedures in the Aero Vodochody factory maintenance manual.
  • Place placards in view of front and rear seat occupants asking them to ensure that the canopy is secure prior to flight.
  • Amend the aircraft checklist to include checking of the canopy to ensure that it is secure.

The FAA says that owners, operators, repair stations, and mechanics that operate and maintain Aero Vodochody L-39C and L-39ZA airplanes should familiarize themselves with the information found in this SAFO, and in the associated Airworthiness Certification job aid.

(L-39 image from file)

FMI: www.faa.gov

Advertisement

More News

Airborne 05.25.17: DJI Spark!, S. Lakeland Airport, Moon Rock Sample

Also: Airbus Corporate Helos, Airborne Expansion, Gulfstream G600, Gogo Business, MilFuel, Aerion And GE, Pro Line Fusion DJI has just introduced the Spark, which they call an "eas>[...]

AMA Drone Report 05.25.17: Court Kills FAA Model Drone Registration, DJI Spark!

Also: AMA Reacts To Court, FAA Reaction, AUVSI Reaction, Kittyhawk Flight Deck APP Score one for us little guys... As you may have heard, the U.S. Court of Appeals in Washington, D>[...]

Airborne-Unmanned 05.23.17: Courts Nix Model Regs, Autonymous Flt, WATT 300

Also: King Schools Update, Kittyhawk APP, Robird And Integrated Drone Solutions, ICAO Drone Tracking The unmanned community got a bit of a jolt late last week when the US Court of >[...]

Airborne 05.24.17: Snowbird Update, New K-MAX, Spirit Pilots Express 'Regret'

Also: Kyle Franklin, FAA’s Earl Lawrence, SpaceX, Citation Longitude, ACSS ODA, Embraer JetWave, Boeing-Saudi As previously reported, the Canadian Snowbirds precision demonst>[...]

Airborne 05.25.17: DJI Spark!, S. Lakeland Airport, Moon Rock Sample

Also: Airbus Corporate Helos, Airborne Expansion, Gulfstream G600, Gogo Business, MilFuel, Aerion And GE, Pro Line Fusion DJI has just introduced the Spark, which they call an "eas>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC