{"id":62372,"date":"2022-09-30T21:33:02","date_gmt":"2022-09-30T21:33:02","guid":{"rendered":"https:\/\/one.sightlinemg.com\/defensenews\/uncategorized\/2022\/09\/30\/air-force-grounds-most-c-130hs-due-to-cracked-propeller-barrels\/"},"modified":"2026-08-08T00:43:00","modified_gmt":"2026-08-08T00:43:00","slug":"air-force-grounds-most-c-130hs-due-to-cracked-propeller-barrels","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/defensenews\/breaking-news\/2022\/09\/30\/air-force-grounds-most-c-130hs-due-to-cracked-propeller-barrels\/","title":{"rendered":"Air Force grounds most C-130Hs due to cracked propeller barrels"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">WASHINGTON \u2014 The Air Force has grounded most of its older <a href=\"https:\/\/www.airforcetimes.com\/news\/your-air-force\/2021\/08\/02\/lawmakers-protect-c-130-fleet-push-for-new-propellers-in-annual-legislation\/\" target=\"_blank\">C-130H Hercules cargo planes<\/a> and variants due to a problem with their propeller barrels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Air Mobility Command on Friday confirmed a wide swath of its C-130H fleet, which numbered 128 at the beginning of fiscal 2022, is unable to fly, and it\u2019s unclear how long it will take to replace all the defective propeller assemblies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AMC said 116 C-130Hs, including variants of the mobility aircraft, were grounded on Tuesday due to concerns their propeller assemblies are defective, and that inspections over the coming days will show how many of those are affected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AMC said the groundings are \u201cwidespread\u201d and primarily affect the Air Force Reserve and Air National Guard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The unofficial Facebook page Air Force amn\/nco\/snco posted a <a href=\"https:\/\/m.facebook.com\/photo.php?fbid=423982146530067&#038;id=100067548558719&#038;set=a.405449955049953&#038;eav=AfagTvTqTor3fM0TvWanrLWPxa3oST8igONlzWre_FF5wDEIPnmXgqA8IKZhOcR6gek&#038;paipv=0&#038;source=57\" target=\"_blank\">screenshot of a time compliance technical order<\/a> on the groundings Wednesday. On Friday, the page posted a <a href=\"https:\/\/m.facebook.com\/story.php?story_fbid=pfbid02ZqeVhCEWgKmR7Vtm2a8Eace2X5dBpJpBxa2doMyjBNMJvkUhxMrWmyvc8U8wxzszl&#038;id=100067548558719\" target=\"_blank\">screenshot of a slide<\/a> that said the propeller barrels in question had been installed in 100 C-130Hs, as well as the entire inventories of eight MC-130H Combat Talons, seven EC-130H Compass Calls, and one TC-130H.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In a statement to Defense News, Air Mobility Command said a maintenance crew at Warner Robins Air Logistics Complex in Georgia found a persistent leak coming from a C-130H propeller while test running the plane\u2019s engine after it had undergone depot maintenance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That propeller assembly was removed and sent to the complex\u2019s propeller shop, AMC said, where a technician found a crack in its barrel assembly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Further inspections found two more propeller assemblies had the same problem, Air Mobility Command added.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AMC ordered immediate field level visual inspections on all C-130Hs with the older 54H60 model propeller, and then conducted metallurgical reviews and stress analyses, the command said. After those reviews, Air Mobility Command issued another order to immediately replace problematic propellers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The command said newer C-130Js and C-130Hs that have already had their propeller assemblies upgraded with the eight-bladed NP2000 system are not affected by the order.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is the second time in more than three years that significant numbers of C-130Hs were grounded due to propeller problems. In February 2019, the <a href=\"https:\/\/www.airforcetimes.com\/news\/your-air-force\/2019\/03\/14\/propeller-cracking-fears-led-air-force-to-ground-60-c-130hs-replace-pre-1971-blades\/\" target=\"_blank\">Air Force grounded 60 C-130Hs<\/a> \u2014 at the time, nearly one-third of the fleet \u2014 for several weeks due to concerns their pre-1971 propeller blades could crack. Those C-130s had their propeller blades replaced over subsequent weeks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>It&#8217;s uncertain how long it will take Air Mobility Command to replace all the defective propeller assemblies that have grounded most C-130H planes.<\/p>\n","protected":false},"author":7,"featured_media":116848,"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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":{"2":{"categories":["news","your-military","left-column","home"],"primary_category":"your-military"},"4":{"categories":["news","home","your-air-force","left-column","daily-news-roundup","newsletters"],"primary_category":"home"}}},"categories":[7,37,160,36],"tags":[],"coauthors":[3412],"class_list":["post-62372","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air","category-breaking-news","category-daily-news-roundup","category-newsletters"],"acf":{"subheadline":"","legacy_arc_id":"K45URR3BH5EOJMHHYREKBPJQ7M","arc_canonical_url":"\/air\/2022\/09\/30\/air-force-grounds-most-c-130hs-due-to-cracked-propeller-barrels\/","remove_feature_photo":false,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented By:"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Air Force grounds most C-130Hs due to cracked propeller barrels - Defense News<\/title>\n<meta name=\"description\" content=\"It&#039;s uncertain how long it will take Air Mobility Command to replace all the defective propeller assemblies that have grounded most C-130H planes.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Air Force grounds most C-130Hs due to cracked propeller barrels\" \/>\n<meta property=\"og:description\" content=\"It&#039;s uncertain how long it will take Air Mobility Command to replace all the defective propeller assemblies that have grounded most C-130H planes.\" 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