AD: Saab AB, Support and Services | 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-07.07.25

Airborne-NextGen-07.08.25

AirborneUnlimited-07.09.25

Airborne-FlightTraining-07.10.25

AirborneUnlimited-07.11.25

Fri, Dec 03, 2021

AD: Saab AB, Support and Services

AD 2021-23-07 Requires Replacing A Certain Circuit Breaker With A Part Having A Higher Rating

The FAA is adopting a new airworthiness directive (AD) for certain Saab AB, Support and Services Model SAAB 340B airplanes.

This AD was prompted by a report that the circuit breaker for the emergency cabin lighting tripped without fault in the system. This AD requires replacing a certain circuit breaker with a part having a higher rating, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective January 5, 2022.

Supplementary Information: EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2021-0058, dated March 1, 2021 (EASA AD 2021-0058) (also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI), to correct an unsafe condition for certain Saab AB, Support and Services Model SAAB 340B airplanes.

The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Saab AB, Support and Services Model SAAB 340B airplanes. The NPRM published in the Federal Register on August 9, 2021 (86 FR 43451). The NPRM was prompted by report that the circuit breaker for the emergency cabin lighting tripped without fault in the system. The NPRM proposed to require replacing a certain circuit breaker with a part having a higher rating, as specified in EASA AD 2021-0058.

The FAA is issuing this AD to address the low rating of the 2LN circuit breaker during maximum charging conditions. This condition, if not corrected, could lead to an insufficiently charged emergency battery, with consequent loss of cabin emergency lighting, possibly resulting in injury to occupants during an evacuation. See the MCAI for additional background information.

FMI: www.regulations.gov

Advertisement

More News

Airborne 07.11.25: New FAA Boss, New NASA Boss (Kinda), WB57s Over TX

Also: ANOTHER Illegal Drone, KidVenture Educational Activities, Record Launches, TSA v Shoes The Senate confirmed Bryan Bedford to become the next Administrator of the FAA, in a ne>[...]

Airborne-Flight Training 07.10.25: ATC School, Air Race Classic, Samson School

Also: Sully v Bedford, Embraer Scholarships, NORAD Intercepts 11, GAMA Thankful Middle Georgia State University will be joining the Federal Aviation Administration’s fight ag>[...]

Airborne Affordable Flyers 07.03.25: Sonex HW, BlackShape Gabriel, PRA Fly-In 25

Also: DarkAero Update, Electric Aircraft Symposium, Updated Instructor Guide, OSH Homebuilts Celebrate The long-awaited Sonex High Wing prototype has flown... the Sonex gang tells >[...]

Airborne-Flight Training 07.10.25: ATC School, Air Race Classic, Samson School

Also: Sully v Bedford, Embraer Scholarships, NORAD Intercepts 11, GAMA Thankful Middle Georgia State University will be joining the Federal Aviation Administration’s fight ag>[...]

Rick Kenin New Board Chair of VAI

30-Year USCG Veteran Aviator Focusing On Member Benefits The Vertical Aviation International Board of Directors announced its new leadership officers in April, and all began their >[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC