Breaking News
0
Ad-Free Version. Upgrade your Investing.com experience. Save up to 40% More details

U.S. requires inspections for wire failure on Boeing 737 Classic planes

Stock MarketsMay 15, 2021 12:40AM ET
Saved. See Saved Items.
This article has already been saved in your Saved Items
 
© Reuters. FILE PHOTO: The Boeing logo is pictured at the Latin American Business Aviation Conference & Exhibition fair (LABACE) at Congonhas Airport in Sao Paulo, Brazil August 14, 2018. REUTERS/Paulo Whitaker

(Corrects paragraph two to say many currently out of service, not few in service)

By David Shepardson

WASHINGTON (Reuters) -The Federal Aviation Administration (FAA) said on Friday it was requiring U.S. operators of 143 Boeing (NYSE:BA) Co 737 Classic series airplanes to check for possible wire failures stemming from an investigation into an Indonesia crash in January.

The 737 Classic is an older generation of planes more than two decades old. The FAA said the issue affected 1,041 737-300, -400 and -500 Classic series airplanes worldwide, but many are currently out of service, because of COVID-19 or other issues.

The FAA is issuing an airworthiness directive for operators to verify that the flap synchro wire, which plays a role in the operation of the aircraft’s auto-throttle system, is securely connected to a safety sensor.

The wire failure could go undetected by the auto-throttle computer on affected airplanes and pose a safety risk.

The FAA is requiring some speedier checks than had been suggested by Boeing, which said late on Friday that it was "engaged in ongoing efforts to introduce safety and performance improvements across the fleet."

The newer 737 MAX and 737 NG are unaffected by the directive.

The FAA and Boeing identified the potential problem during the investigation of the Jan. 9 crash of Sriwijaya Air Flight 182 in the Indonesian capital.

Indonesia’s third major airline crash in just over six years shone a spotlight on the southeast Asian nation’s poor air safety record.

All 62 aboard were killed after the 26-year-old Boeing Co 737-500 crashed into the Java Sea soon after takeoff from Jakarta.

The FAA said there was no evidence the flap synchro wire issue had a role in the accident though the possibility of a failed connection presented a safety concern warranting prompt attention.

In February, Indonesia’s National Transportation Safety Committee (KNKT) said the plane had an imbalance in engine thrust that eventually led it into a sharp roll before a final dive into the sea.

There had been two prior problems reported with the autothrottle system that automatically controls engine power based on maintenance logs, but the issue was rectified four days before the crash, the agency said.

Boeing issued a March 30 message to operators directing them to perform electronic checks of the auto-throttle computer to confirm the wire is connected within 250 flight hours.

The FAA is requiring the initial test within 250 flight hours or two months from now, whichever occurs first, "to ensure that airplanes with low utilization rates are addressed in a timely manner." Operators must then make repairs, if needed.

The FAA said a faulty connection could result in the failure of the auto-throttle system to detect the position of the aircraft’s flaps if the plane’s engines were operating at different thrust settings due to another malfunction.

The FAA is requiring follow-on inspections every 2,000 flight hours after the first.

Affected U.S. operators are Aloha Air Cargo, DHL, iAero Airways, Kalitta Charters and Northern Air Cargo, the FAA said.

U.S. requires inspections for wire failure on Boeing 737 Classic planes
 

Related Articles

Add a Comment

Comment Guidelines

We encourage you to use comments to engage with users, share your perspective and ask questions of authors and each other. However, in order to maintain the high level of discourse we’ve all come to value and expect, please keep the following criteria in mind: 

  • Enrich the conversation
  • Stay focused and on track. Only post material that’s relevant to the topic being discussed.
  • Be respectful. Even negative opinions can be framed positively and diplomatically.
  •  Use standard writing style. Include punctuation and upper and lower cases.
  • NOTE: Spam and/or promotional messages and links within a comment will be removed
  • Avoid profanity, slander or personal attacks directed at an author or another user.
  • Don’t Monopolize the Conversation. We appreciate passion and conviction, but we also believe strongly in giving everyone a chance to air their thoughts. Therefore, in addition to civil interaction, we expect commenters to offer their opinions succinctly and thoughtfully, but not so repeatedly that others are annoyed or offended. If we receive complaints about individuals who take over a thread or forum, we reserve the right to ban them from the site, without recourse.
  • Only English comments will be allowed.

Perpetrators of spam or abuse will be deleted from the site and prohibited from future registration at Investing.com’s discretion.

Write your thoughts here
 
Are you sure you want to delete this chart?
 
Post
Post also to:
 
Replace the attached chart with a new chart ?
1000
Your ability to comment is currently suspended due to negative user reports. Your status will be reviewed by our moderators.
Please wait a minute before you try to comment again.
Thanks for your comment. Please note that all comments are pending until approved by our moderators. It may therefore take some time before it appears on our website.
Comments (2)
Johnny Crash
Johnny Crash May 15, 2021 1:52AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
Lol, I will never, ever board a 737 in my life. They should start building 747 again, identical to the original design. What a mess.....
gajat podda
gajat podda May 15, 2021 1:00AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
👍👍👍
 
Are you sure you want to delete this chart?
 
Post
 
Replace the attached chart with a new chart ?
1000
Your ability to comment is currently suspended due to negative user reports. Your status will be reviewed by our moderators.
Please wait a minute before you try to comment again.
Add Chart to Comment
Confirm Block

Are you sure you want to block %USER_NAME%?

By doing so, you and %USER_NAME% will not be able to see any of each other's Investing.com's posts.

%USER_NAME% was successfully added to your Block List

Since you’ve just unblocked this person, you must wait 48 hours before renewing the block.

Report this comment

I feel that this comment is:

Comment flagged

Thank You!

Your report has been sent to our moderators for review
Disclaimer: Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. All CFDs (stocks, indexes, futures) and Forex prices are not provided by exchanges but rather by market makers, and so prices may not be accurate and may differ from the actual market price, meaning prices are indicative and not appropriate for trading purposes. Therefore Fusion Media doesn`t bear any responsibility for any trading losses you might incur as a result of using this data.

Fusion Media or anyone involved with Fusion Media will not accept any liability for loss or damage as a result of reliance on the information including data, quotes, charts and buy/sell signals contained within this website. Please be fully informed regarding the risks and costs associated with trading the financial markets, it is one of the riskiest investment forms possible.
Continue with Google
or
Sign up with Email