On Thursday, the Air Combat Command of the US service affirmed that the E-3 Sentry aerial target tracking planes had been inspected for substandard tail pins on Wednesday.

The E-3 Sentry aerial target tracking plane, which the US Air Force uses to track targets in the air, has come under scrutiny recently due to the discovery of potentially dangerous parts. Investigations have revealed that tail pins on at least two dozen aircraft across five fleets may be defective. 

In the extensive search for a minute piece responsible for a plane’s tail breaking off, it has been determined that the issue is present in at least two dozen Air Force planes from five different fleets. However, the Air Force has not disclosed the exact number of aircraft that have the hazardous component.

An email from Air Force spokesperson Capt. Laura Hayden revealed that all E-3s in the field had been inspected, and most had resumed normal operations. The Air Force was unwilling to disclose how many Sentries required replacement components, though they confirmed that the amount cleared was enough to meet the daily requirements.