{"id":35844,"date":"2019-01-10T14:45:17","date_gmt":"2019-01-10T14:45:17","guid":{"rendered":"https:\/\/staging.sightlinemg.com\/defensenews\/uncategorized\/2019\/01\/10\/boeing-delivers-first-kc-46-but-fixes-to-technical-problems-still-years-away\/"},"modified":"2026-08-07T22:53:58","modified_gmt":"2026-08-07T22:53:58","slug":"boeing-delivers-first-kc-46-but-fixes-to-technical-problems-still-years-away","status":"publish","type":"post","link":"https:\/\/staging.sightlinemg.com\/defensenews\/breaking-news\/2019\/01\/10\/boeing-delivers-first-kc-46-but-fixes-to-technical-problems-still-years-away\/","title":{"rendered":"Boeing delivers first KC-46, but fixes to technical problems still years away"},"content":{"rendered":"<figure class=\"wp-block-smg-jwplayer-video\"><atype-video-jwplayer nostick=\"true\" playlisturl=\"https:\/\/cdn.jwplayer.com\/v2\/playlists\/fCzRqMW8?tags=25a4f2a2-e009-459e-923f-7472a20c410b\" poster=\"\/wp-content\/uploads\/2026\/08\/video-poster-25a4f2a2-e009-459e-923f-7472a20c410b.jpg\" aspectratio=\"16 \/ 9\" mute autostart=\"false\"><\/atype-video-jwplayer><figcaption class=\"wp-element-caption\">Get the details on the First KC-46 accepted by the Air Force.<\/figcaption><\/figure>\n\n\n<p class=\"wp-block-paragraph\">WASHINGTON \u2014 After <a href=\"https:\/\/www.defensenews.com\/air\/2018\/03\/07\/another-kc-46-delivery-slip-puts-pressure-on-boeing-to-meet-contract-obligations\/\" target=\"_blank\">more than a year of delays<\/a>, the U.S. Air Force <a href=\"https:\/\/www.defensenews.com\/digital-show-dailies\/reagan-defense-forum\/2017\/12\/03\/boeing-will-miss-2017-delivery-goal-for-first-kc-46\/\" target=\"_blank\">took hold of its first KC-46 tanker<\/a> on Jan. 10, but it will take several years for the service and manufacturer Boeing to <a href=\"https:\/\/www.defensenews.com\/air\/2018\/07\/26\/boeings-kc-46-penalties-now-up-to-34b-thanks-to-new-426m-charge\/\" target=\"_blank\">reconcile major technical problems<\/a>, and the company will not be receiving the full amount of money due upon delivery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The agreement, finalized after <a href=\"https:\/\/www.defensenews.com\/air\/2018\/04\/24\/air-force-boeing-still-divergent-on-kc-46-delivery-timeline\/\" target=\"_blank\">months of sometimes public and contentious discussions<\/a>, allows McConnell Air Force Base in Kansas to receive the KC-46 as early as this month, with more set to follow, said Air Force spokeswoman Capt. Hope Cronin. However, the new tankers will arrive with several outstanding category-1 deficiencies, the term used by the military to describe the most serious level of technical problems.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/staging.sightlinemg.com\/defensenews\/air\/2018\/06\/20\/heres-when-the-air-force-will-get-its-first-kc-46\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/staging.sightlinemg.com\/wp-content\/uploads\/2026\/08\/4460282.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">Here\u2019s when the US Air Force will get its first KC-46 tanker<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">For months, the Air Force and Boeing have been at loggerheads on when the first KC-46 tanker would be delivered.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">That may sound like a blow to the Air Force, whose leaders had previously implied that all category-1 deficiencies must be fixed before the service begins accepting the tankers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, service leaders believe the Air Force retains significant financial leverage, even as Boeing delivers the KC-46 aircraft, and the service sees it as vital that Air Mobility Command be able to begin training pilots and boom operators to use the tankers even as technical problems are being corrected.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/staging.sightlinemg.com\/defensenews\/air\/2018\/05\/09\/remember-that-list-of-kc-46-problems-heres-how-theyre-getting-fixed\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"170\" src=\"https:\/\/staging.sightlinemg.com\/wp-content\/uploads\/2026\/08\/KC-46-test-fleet.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">Remember that list of KC-46 problems? Here\u2019s how they\u2019re getting fixed.<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">A fix to the infamous &quot;boom scraping&quot; issue is on the way. How will the U.S. Air Force react?<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">\u201cDespite all the flaws, there is operational utility of the system,\u201d an Air Force official told Defense News. \u201cKC-46 has a lot of systems that our legacy tankers don\u2019t that in a contested fight you might want. It has improved situational awareness and battle management and protection.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Perhaps more importantly, the Air Force <a href=\"https:\/\/www.defensenews.com\/air\/2018\/03\/20\/boeing-kc-46-delays-are-frustrating-air-force-secretary-heather-wilson\/\" target=\"_blank\">holds a significant trump card in its hand<\/a>. According to the terms of its fixed-price contract with Boeing, the service can withhold up to $28 million per aircraft upon delivery \u2014 and the Air Force official said the service intends to keep that amount until it sees a good faith effort by Boeing to fix deficiencies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That means Boeing could miss out on $1.5 billion if the maximum withholding is applied to all 52 aircraft on contract.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cThat is not something that legitimately can be contested by Boeing. That is purely a government decision until the airplane is brought up to specification,\u201d the official said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In a statement, Boeing hailed the Air Force\u2019s decision to accept the KC-46.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cThe KC-46A is a proven, safe, multi-mission aircraft that will transform aerial refueling and mobility operations for decades to come,\u201d said Leanne Caret, president and chief executive of Boeing\u2019s defense business.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cWe look forward to working with the Air Force, and the Navy, during their initial operational test and evaluation of the KC-46, as we further demonstrate the operational capabilities of this next-generation aircraft across refueling, mobility and combat weapons systems missions.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><b>Two key problems<\/b><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Before the Air Force would accept the first KC-46, Boeing and the service first had to come to terms on the aircraft\u2019s remote vision system, or RVS, the most significant technical hurdle that had bogged down talks between the parties.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In short, Boeing has agreed to embark on a redesign effort for the Rockwell Collins-designed RVS that will involve both hardware and software changes. The Air Force believes it will take three to four years to develop a fully functioning RVS, and Boeing has agreed to fix it at its own expense, Cronin said.<\/p>\n\n\n<figure class=\"wp-block-smg-jwplayer-video\"><atype-video-jwplayer nostick=\"true\" playlisturl=\"https:\/\/cdn.jwplayer.com\/v2\/playlists\/fCzRqMW8?tags=0d02a6d6-3f75-46f1-9bd6-819546a5e32e\" poster=\"\/wp-content\/uploads\/2026\/08\/video-poster-0d02a6d6-3f75-46f1-9bd6-819546a5e32e.jpg\" aspectratio=\"16 \/ 9\" mute autostart=\"false\"><\/atype-video-jwplayer><figcaption class=\"wp-element-caption\">Because of turnover at the Pentagon, Boeing wasn\u2019t able to deliver the first KC-46 at the end of 2018.<\/figcaption><\/figure>\n\n\n<p class=\"wp-block-paragraph\">Unlike legacy tankers, where boom operators could see out a window in the back of the aircraft and rely on visual cues to guide the boom into the receptacle, the boom operator in a KC-46 works at stations in the front of the aircraft, relying on the RVS\u2019 series of cameras and sensors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, Air Force test communities have complained that certain lighting conditions cause the imagery provided to the boom operator to be misleading, contributing to cases where the boomer accidentally scrapes the skin of the receiver aircraft. For aircraft with low-observable coating, such mistakes could result in the loss of stealth and a hefty repair bill.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Boeing previously maintained it could update its software to fix RVS problems, while the service was more reluctant to put its faith in that proposed solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To better understand the RVS, the Air Force formed a team that included personnel from Boeing, Air Mobility Command, the Air Force\u2019s acquisition wing and the Human Performance Wing at Wright-Patterson Air Force Base, which studied how the imagery from the RVS was perceived and internalized by boom operators. For example, \u201cthere is a slight difference between the motion viewed in the RVS versus what is actually occurring in the physical world. All of those things can create a depth compression and curvature effect\u201d where boom operators might overcorrect their movement based on what they are seeing on screen, an Air Force official explained.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once the Air Force was able to understand how the RVS distorted imagery under certain conditions, the service was able to more firmly articulate the requirements Boeing must meet for an acceptable RVS, but those parameters will surely entail hardware changes \u2014 potentially very extensive ones.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/staging.sightlinemg.com\/defensenews\/air\/2018\/05\/04\/boeing-pushes-back-on-its-bad-reputation-on-kc-46-tanker-program\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/staging.sightlinemg.com\/wp-content\/uploads\/2026\/08\/KC-46-row-1.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">Boeing pushes back on the KC-46 program\u2019s bad reputation with the Air Force<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">&quot;We have an entire fleet of tankers here,&quot; according to the head of Boeing&#039;s defense business. Defense News has traveled to check this claim.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">However, the Air Force also made key concessions. Namely, it will have to pay for another fix using taxpayer money.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During tests, the Air Force found that certain aircraft \u2014 most often, the A-10 Warthog \u2014 had trouble generating the necessary thrust to push into the boom for refueling.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Boeing presented a boom design to the government at Milestone C that set the boom resistance to the international standard of about 1,400 pounds, which the government accepted, the Air Force official said. The problem is that to refuel the A-10, the boom must have a much lower threshold of thrust resistance, around 650 pounds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because the Air Force is asking for a change in requirements, it has agreed to fund the additional work \u2014 though it is still working out how much it will cost for the redesign work and retrofits, the official said. That redesign and manufacturing process will probably take about two years.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><b>Tanker deficiencies<\/b><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The delivery of the first KC-46 is a huge milestone for Boeing, which won a $4.9 billion fixed-price contract for the tanker program in 2011 after a protracted and controversial battle against Airbus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The company was due to deliver the first 18 KC-46s to the Air Force in August 2017, allowing the service to declare the aircraft operational. But numerous technical issues were found that have delayed that milestone and driven up the price of the program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After months of discussions with the Air Force, the service and Boeing came to an agreement in late 2018 that stipulated the way forward on KC-46, including a path to close deficiencies and a plan for the first KC-46 delivery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The compromise would allow Boeing to get the tanker off its books by the end of the year \u2014 something the company has held that it could accomplish after missing the deadline several times since 2017 \u2014 but first, Defense Secretary Jim Mattis would have to approve the approach. When in December he announced he would resign, and then was forced by President Donald Trump to leave his role by the end of the year, momentum on the tanker delivery stalled.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/staging.sightlinemg.com\/defensenews\/air\/2018\/12\/31\/first-kc-46-delivery-stalled-by-mattis-departure\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/staging.sightlinemg.com\/wp-content\/uploads\/2026\/08\/KC-46-McConnell-1.JPG.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">First KC-46 delivery stalled by Mattis\u2019 departure<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">The Air Force will have to wait a little longer for its new tanker.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">Ellen Lord, the undersecretary of defense for acquisition and sustainment, signed off on the KC-46 acceptance on Thursday.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cThe Department of Defense is in complete agreement regarding moving forward with delivery of KC-46 tankers,\u201d said Pentagon spokesman Lt. Col. Mike Andrews. \u201cThe department remains committed to providing the most cost-effective platforms for the U.S. taxpayer, while still delivering the best capabilities to our men and women serving in uniform.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Boeing has been forced to <a href=\"https:\/\/www.defensenews.com\/air\/2017\/10\/25\/boeing-hit-with-another-kc-46-cost-overrun-this-time-worth-329m\/\" target=\"_blank\">pay more than $3 billion<\/a> from the company\u2019s accounts as a result of cost overruns.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, some of the more serious technical problems appear to be on the mend.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Air Force downgraded two category-1 deficiencies to category-2 status after a Nov. 7 meeting of the deficiency review board. A category-2 deficiency is a serious technical issue for which there is a workaround in place.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One of the deficiencies involved forces on the boom as it made contact with an aircraft, raising concerns that it was nearing its maximum loads. However, with further analysis, Boeing determined the boom was experiencing at most 45 percent of its maximum loads, and the Air Force ruled that the deficiency could be downgraded as Boeing revises its software.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The other deficiency occurred when the centerline drogue system experiences an increase in tension and disconnects from a receiver aircraft without being commanded to by the boom operator. The issue was observed during tests of multiple KC-46 tankers with two different F\/A-18 Hornets acting as receivers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To fix that problem, Boeing proved out a software fix that was then implemented throughout the existing KC-46 inventory, the company said in a statement.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Boeing could miss out on $1.5 billion if the maximum withholding is applied to all 52 tankers on contract.<\/p>\n","protected":false},"author":7,"featured_media":51571,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_acf":"","_yoast_wpseo_primary_category":37,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":{"2":{"categories":["your-military","news","middle-column","home"],"primary_category":"your-military"},"4":{"categories":["your-air-force","news","left-column","home","middle-column","daily-news-roundup","newsletters"],"primary_category":"your-air-force"}}},"categories":[7,37,160,12,36],"tags":[],"coauthors":[3384],"class_list":["post-35844","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air","category-breaking-news","category-daily-news-roundup","category-industry","category-newsletters"],"acf":{"subheadline":"","legacy_arc_id":"WPMYTO6BCFBDHIKXOYJRDWYT3Q","arc_canonical_url":"\/breaking-news\/2019\/01\/10\/boeing-delivers-first-kc-46-but-fixes-to-technical-problems-still-years-away\/","remove_feature_photo":true,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented 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