# United’s New Premium 787 Grounded Again Over Reported TCAS Issue

> **Open Intelligence Dossier** · First detected: 2026-07-05 22:07 UTC · Category: Business

## Executive Summary
United's newly delivered 787-9 Dreamliner grounded again over reported TCAS failure

## Intelligence Brief
United Airlines has grounded its new premium Boeing 787-9 Dreamliner for a second time, citing a reported problem with the aircraft’s Traffic Collision Avoidance System (TCAS). Coverage highlights that the jet was previously sent back to Boeing for repairs, described as “broken” and “fixed” before the latest grounding.


The story is being tracked by One Mile at a Time, Aviation A2Z, PYOK, Simple Flying and Live and Let’s Fly. Observers will watch for further statements from United or Boeing on corrective actions, any additional grounding decisions, and the impact on the airline’s schedule.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| One Mile at a Time | United’s Cursed 787 Is Still “Broken,” Even After Being Sent Back To Boeing | [Source Link](https://news.google.com/rss/articles/CBMikAFBVV95cUxPeDZ0VmdFeFZpNDY1ZDVGVVZmNF9JbXF3bXFDMjlUeE8wY1NwUDBzbTBOYkU2c291a01YbFcyMEdJeDFvbnVQbnI3ZmxvamtMV0FMMEhwRzJ4VmNoNVpNcXdhWkIzSl9oTnN0X2wzQWxxLVN5ZTRSUFhlalNpNjRONHpGU0dCbGIydWt4Smotano?oc=5) |
| Aviation A2Z | United Airlines New Boeing 787-9 Grounded Again Amid TCAS Failure | [Source Link](https://news.google.com/rss/articles/CBMiiAFBVV95cUxQZmN2alIxdG03SGFNdkdadlBzSHJyQ05KMG81V0lrZ1VFX0tTWTJFU2N4XzRLbEIxSmk3QlI3bkJyRmlZaWF3UnV6SEJGRmNEUnlNX0xueGRBRllCOVN0b3BWNHg3YTRnODdwVm5OaUczQnFIWXRzNk1pTzc4UXZ6WC1XWXU5OTB6?oc=5) |
| PYOK | United's Brand-New 787 Dreamliner That Was Sent Back to Boeing Because it Kept Breaking Has Been Grounded Just Days After Being 'Fixed' | [Source Link](https://news.google.com/rss/articles/CBMiiwJBVV95cUxNZ21zdkFwWFFPbzdpcjlUWXlTYll0cFVoTVpISDl6WjM5YmNtVmVUSi1RUEJsMFRhWDB2T1pjRndTU3JLWDdNems4WktJdTVLQ2kydWtyTkxqUC1tUlc0MmlMczc1OUluV3dFZHBPUExPbUo3QkRodUZYY2hWOHFMQkEtUGEyUTRMZDJwZzNpaG9UTG0wMzdMeVo5eVl3MkxBbFRISVBZUWNrb0J3OS1yX3B2akh2M0M0dHhWX0h4T3VPbVVyTk5PNVVkeHV0YUNnS0FjSmFCZzJCelhjc2t2MGU0QVBnel9JZWZhYW1reWJ6ZUdKaXA2TkN5SVVpRHE0Smx0bFI5NFY2WG8?oc=5) |
| Simple Flying | Unsolved: United Airlines Grounds New Premium Boeing 787-9 Again After Suffering TCAS Issues | [Source Link](https://news.google.com/rss/articles/CBMipAFBVV95cUxObUtGcndneVBlTzhUQjFrYmRNbnZFY09Ka1NxTnpfaGpZZTVQWmFGa0NLclkzNVB3MmNITFMtUjFCLVJJU3pESmt6Qm84Sk5mSUl5dGhTMXdGWm9jU01JS0U0RTA3RTVqaEVBVmxQM29zeGJtZFFFa2ZzV3NJZDFnMEpYbkJKcENLY2Rnc1NfSFdJVEg3LWdLR1ZkWkhCQ1dyNmF5eg?oc=5) |
| Live and Let's Fly | United’s New Premium 787 Grounded Again Over Reported TCAS Issue | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxQdWc4eVRsV3c0VmJoR2VsTnNNUWY4NDhZZTUwUzVxMlJZY0JxUE8wSmo1anlxNlB0WE1GVnN6a3dhLVNaelBrdk5XS0hSZE9zQTRUZExMY2dKUFZiLVZTUzJxaXZaTVhlMG5URUhaRFRKOWhBUy14UzA5dktEbUVvRw?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-07-05/united-s-new-premium-787-grounded-again-over-reported-tcas-issue*