NTSB issues urgent safety alert after Boeing 737 rudder failure

[dc-8-63]

Fra Seattle Times:

The National Transportation Safety Board issued urgent safety recommendations Thursday to Boeing and the FAA about the risk of a 737 rudder malfunction because of a manufacturing fault in a component.

The Federal Aviation Administration said United was the only U.S. airline flying planes with the manufacturing defect in the rudder control system, and that United has already replaced the component on nine 737s, the only jets in its fleet where it was identified as faulty.

However, the NTSB alert may cause the grounding of some 737 MAXs and older model 737NGs flown by foreign air carriers that have not yet replaced the defective part.

The NTSB recommended that the FAA determine if the faulty components need to be removed from airplanes, and, if so, to notify aviation regulators in other countries and encourage them to require removal.

In a statement Thursday, the FAA said it “has been monitoring this situation closely.”

“Tomorrow, we will convene a corrective action review board based upon the NTSB’s interim recommendations and determine next steps,” the FAA added

[Someone]

United sier de tidligere i år identifiserte dette problemet på 9 av sine maskiner, som egentlig ikke var bygget for dem.

https://x.com/jonostrower/status/1839430684387209527

We’re still seeking more information on this, but United tells
@theaircurrent that the 9 affected 737 Max airplanes had their suspect components removed “earlier this year.” Those 9 components were on airplanes that were taken as white tails previously built for other operators.

[Blubird]

Vi har en annen tråd om samme tema fra tidligere i år, var vel snakk om en UA 737 hvor roret "frøs" i en gitt atmosfærisk tilstand.

[L-1011]

KLM(NG only), Norwegian, Ryanair och TUI tillhör väl de största Boeing 737(NG/MAX)operatörerna i Europa.
Är någon av dem drabbade?

[Blubird]

Og nå er NTSB kritisk til manglende aktivitet fra FAA:

Not making operators fully aware of the installed systems and equipment on the airplanes delivered to them is unacceptable and cannot continue to be tolerated.

https://avherald.com/h?article=515dab89&opt=0

[Shimmy]

Originally Posted by L-1011

KLM(NG only), Norwegian, Ryanair och TUI tillhör väl de största Boeing 737(NG/MAX)operatörerna i Europa.
Är någon av dem drabbade?

Av de gamle -800 maskinene til Norwegian tipper jeg det bare er LN-NIB som er berørt, da denne ble levert i Air Berlin spec og har autopilot servo koblet til rudder-pcu for auto-rollout. Så kan en jo evt. se hvor alle de andre Air Berlin maskinene havnet til slutt.