What happened
On May 22, 2023, at 10:53 UTC, a Boeing 777-224 operating flight UA819, arriving from George Bush Intercontinental Airport, encountered a technical issue during its approach to Ministro Pistarini International Airport (Ezeiza), Buenos Aires. While in flight, the flight crew identified an indication of low pressure in one of the nose gear tires. As a precautionary measure, the crew declared an emergency to ensure a safe arrival. The aircraft landed at Ezeiza without further incident, and there were no injuries reported among the 251 passengers or the crew.
The investigation
The investigation conducted by the National Directorate for the Investigation of Aeronautical Occurrences (DNISAE) focused on a documentary review of the event. Investigators examined the flight logs and technical data related to the tire pressure indication. The inquiry followed the established procedures for civil aviation accident and incident investigations to determine if the malfunction posed a broader risk to operational safety.
Findings
The investigation established that the primary cause of the emergency declaration was a low-pressure indication in a nose gear tire. The landing was completed successfully without any damage to the N78008 aircraft or the airport infrastructure. The investigation concluded that the event did not yield significant findings that would necessitate new safety recommendations or changes to national operational safety standards.