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-05.19.25

Airborne-NextGen-05.20.25

AirborneUnlimited-05.21.25

Airborne-AffordableFlyers-05.22.25

AirborneUnlimited-05.23.25

Thu, Aug 13, 2020

AD: The Boeing Company Airplanes

AD 2020-16-51 Requires Inspections Of The Engine Bleed Air 5th Stage Check Valve On Each Engine

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes. An emergency AD was sent to all known U.S. owners and operators of these airplanes.

This AD requires inspections of the engine bleed air 5th stage check valve on each engine, and replacement of the engine bleed air 5th stage check valve if any inspection is not passed. This AD was prompted by four recent reports of single-engine shutdowns due to engine bleed air 5th stage check valves being stuck open. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective August 26, 2020 to all persons except those persons to whom it was made immediately effective by Emergency AD 2020-16-51, issued on July 23, 2020, which contained the requirements of this amendment. The FAA must receive comments on this AD by September 25, 2020.

Supplementary Information: On July 23, 2020, the FAA issued Emergency AD 2020-16-51, which applies to all The Boeing Company Model 737-300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes, AD 2020-16-51 requires inspections of the engine bleed air 5th stage check valve on each engine, and replacement of the engine bleed air 5th stage check valve if any inspection is not passed. This emergency AD was sent to all known U.S. owners and operators of these airplanes. This action was prompted by four recent reports of single-engine shutdowns caused by engine bleed air 5th stage check valves stuck in the open position. This condition, if not  addressed, could result in compressor stalls and dual-engine power loss without the ability to restart, which could result in a forced offairport landing.

FMI: www.regulations.gov

Advertisement

More News

Aero-FAQ: Dave Juwel's Aviation Marketing Stories -- ITBOA BNITBOB

Dave Juwel's Aviation Marketing Stories ITBOA BNITBOB ... what does that mean? It's not gibberish, it's a lengthy acronym for "In The Business Of Aviation ... But Not In The Busine>[...]

Airborne 05.19.25: Kolb v Tornados, Philippine Mars, Blackhawk Antler Theft

Also: Tentative AirVenture Airshow Lineup, Supersonic Flight Regs, Private Pilot Oral Exam Guide, Boeing Deal The sport aircraft business can be a tough one... especially when Moth>[...]

Klyde Morris (05.19.25)

Klyde Gets Nervous... Is Crazy Mike Enough? FMI: www.klydemorris.com>[...]

Airborne-NextGen 05.20.25: Drone Regs, Zero-Emission Cargo, Door-Dash Drone

Also: Blackhawk’s Replacement, Supersonic Flight, Archer 1Q/25, Long-Range VTOL Program U.S. Secretary of Transportation Sean P. Duffy released an update on progress being ma>[...]

Airborne Affordable Flyers 05.22.25: RV-15 Finalizing, OSH NOTAM, Kolb v Tornado

Also: Elektra Solar Trainer, U.S. Nationals Update, SeaMax M-22 Catches Fire, Bearhawk Aircraft At SUN ‘n FUN The Vans Aircraft engineering team recently provided its spring >[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

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