https://www.cnbc.com/2024/01/08/united-airlines-737-max-9-inspections-turn-up-loose-bolts.html Skip Navigation logo * watchlive logo Markets * Pre-Markets * U.S. Markets * Currencies * Cryptocurrency * Futures & Commodities * Bonds * Funds & ETFs Business * Economy * Finance * Health & Science * Media * Real Estate * Energy * Climate * Transportation * Industrials * Retail * Wealth * Sports * Life * Small Business Investing * Personal Finance * Fintech * Financial Advisors * Options Action * ETF Street * Buffett Archive * Earnings * Trader Talk Tech * Cybersecurity * Enterprise * Internet * Media * Mobile * Social Media * CNBC Disruptor 50 * Tech Guide Politics * White House * Policy * Defense * Congress * Equity and Opportunity CNBC TV * Live TV * Live Audio * Business Day Shows * Entertainment Shows * Full Episodes * Latest Video * Top Video * CEO Interviews * CNBC Documentaries * CNBC Podcasts * CNBC World * Digital Originals * Live TV Schedule Watchlist Investing Club * Trust Portfolio * Analysis * Trade Alerts * Meeting Videos * Homestretch * Jim's Columns * Education * Subscribe * Sign In PRO * Pro News * Pro Live * Full Episodes * Stock Screener * Market Forecast * Options Investing * Subscribe * Sign In Menu * Make It * select + ALL SELECT + Credit Cards + Loans + Banking + Mortgages + Insurance + Credit Monitoring + Personal Finance + Small Business + Taxes + Help for Low Credit Scores + Investing + SELECT + All Credit Cards + Find the Credit Card for You + Best Credit Cards + Best Rewards Credit Cards + Best Travel Credit Cards + Best 0% APR Credit Cards + Best Balance Transfer Credit Cards + Best Cash Back Credit Cards + Best Credit Card Welcome Bonuses + Best Credit Cards to Build Credit + SELECT + All Loans + Find the Best Personal Loan for You + Best Personal Loans + Best Debt Consolidation Loans + Best Loans to Refinance Credit Card Debt + Best Loans with Fast Funding + Best Small Personal Loans + Best Large Personal Loans + Best Personal Loans to Apply Online + Best Student Loan Refinance + SELECT + All Banking + Find the Savings Account for You + Best High Yield Savings Accounts + Best Big Bank Savings Accounts + Best Big Bank Checking Accounts + Best No Fee Checking Accounts + No Overdraft Fee Checking Accounts + Best Checking Account Bonuses + Best Money Market Accounts + Best CDs + Best Credit Unions + SELECT + All Mortgages + Best Mortgages + Best Mortgages for Small Down Payment + Best Mortgages for No Down Payment + Best Mortgages with No Origination Fee + Best Mortgages for Average Credit Score + Adjustable Rate Mortgages + Affording a Mortgage + SELECT + All Insurance + Best Life Insurance + Best Homeowners Insurance + Best Renters Insurance + Best Car Insurance + Travel Insurance + SELECT + All Credit Monitoring + Best Credit Monitoring Services + Best Identity Theft Protection + How to Boost Your Credit Score + Credit Repair Services + SELECT + All Personal Finance + Best Budgeting Apps + Best Expense Tracker Apps + Best Money Transfer Apps + Best Resale Apps and Sites + Buy Now Pay Later (BNPL) Apps + Best Debt Relief + SELECT + All Small Business + Best Small Business Savings Accounts + Best Small Business Checking Accounts + Best Credit Cards for Small Business + Best Small Business Loans + Best Tax Software for Small Business + SELECT + All Taxes + Best Tax Software + Best Tax Software for Small Businesses + Tax Refunds + SELECT + All Help for Low Credit Scores + Best Credit Cards for Bad Credit + Best Personal Loans for Bad Credit + Best Debt Consolidation Loans for Bad Credit + Personal Loans if You Don't Have Credit + Best Credit Cards for Building Credit + Personal Loans for 580 Credit Score or Lower + Personal Loans for 670 Credit Score or Lower + Best Mortgages for Bad Credit + Best Hardship Loans + How to Boost Your Credit Score + SELECT + All Investing + Best IRA Accounts + Best Roth IRA Accounts + Best Investing Apps + Best Free Stock Trading Platforms + Best Robo-Advisors + Index Funds + Mutual Funds + ETFs + Bonds * USA * INTL * watchlive Search quotes, news & videos Watchlist SIGN IN logo Markets Business Investing Tech Politics CNBC TV Watchlist Investing Club PRO Menu Airlines United Airlines finds loose bolts on several Boeing 737 Max 9s after grounding Published Mon, Jan 8 20243:51 PM ESTUpdated An Hour Ago thumbnail Leslie Josephs@lesliejosephs WATCH LIVE Key Points * United Airlines has found loose bolts on door plugs of several Boeing 737 Max 9 planes during inspections. * The Federal Aviation Administration on Saturday grounded dozens of 737 Max 9s after the panel blew out midflight on Alaska Flight 1282. * Plane manufacturer Boeing earlier Monday said it sent instructions to airlines to conduct the inspections of the Max 9s in their fleets. In this article * BA * ALK * UAL Follow your favorite stocksCREATE FREE ACCOUNT A United Airlines Boeing 737 Max 9 aircraft lands at San Francisco International Airport in California on March 13, 2019. Justin Sullivan | Getty Images United Airlines said Monday that it has found loose bolts on door plugs of several Boeing 737 Max 9 planes during inspections spurred when a panel of that type blew out during an Alaska Airlines flight at 16,000 feet last week. The Federal Aviation Administration on Saturday grounded dozens of 737 Max 9s after the panel blew out midflight on Alaska Flight 1282, calling for inspections. United has 79 of the Max 9 planes in its fleet and is the biggest operator of the jet model. "Since we began preliminary inspections on Saturday, we have found instances that appear to relate to installation issues in the door plug -- for example, bolts that needed additional tightening," United said in a statement. "These findings will be remedied by our Tech Ops team to safely return the aircraft to service." Plane manufacturer Boeing said earlier Monday it issued instructions to airlines to conduct the inspections of the Max 9s in their fleets. United had begun some preliminary inspection work in the past few days. No one was seriously injured in the accident aboard the Alaska Airlines flight, though the blown-out panel produced a force so violent that some headrests and seatbacks were ripped from the cabin and the cockpit door was flung open, according to initial details of a federal safety investigation. No passengers were seated in the two seats next to the panel. The National Transportation Safety Board said the accident would have been worse at cruising altitude when passengers and crews are walking around the cabin. But the accident places fresh scrutiny on Boeing, which has spent years trying to clean up a host of quality defects, while also ramping up aircraft production, including of the 737 Max. CEO Dave Calhoun has spent months trying to assure airlines, investors and financial analysts that the company is improving its supply chain and working to resolve its quality problems. Calhoun canceled a company leadership summit this week and plans to hold an all-employee call on Tuesday. Alaska Airlines, which is set to inspect its fleet of more than 60 737 Max 9s, didn't immediately comment on whether it, too, has found loose bolts. The FAA declined to comment on United's findings. Boeing didn't immediately respond to CNBC's request for comment. The 737 Max is Boeing's best-selling aircraft, with more than 4,000 orders to fill. However, the more common Max 8, which is not affected by the grounding, makes up the majority of those orders. Aviation publication The Air Current first reported that United had discovered the loose bolts. 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