dailynewsnblog
A scheduled 
Delta Air Lines flight inadvertently lost power during its trip between Los Angeles and Dallas on Thursday. The flight, which was on its final approach to 
Dallas/Fort Worth International Airport(DFW), temporarily lost power in the cabin , but the crew was quickly able to restore it. The aircraft then requested an emergency landing and was able to touch down without incident.
Delta Air Lines flight 521 was a regular service that connects 
Los Angeles International Airport (LAX) to Dallas, and due to the nature of the incident, the Federal Aviation Administration is now involved, and has discovered that the aircraft had a generator issue. According to data from Flightradar24, the Airbus A319-100 has remained out of service since.
Emergency Landing For The Airbus A319 In The Final Moments Before Arriving In Dallas
In the final moments of the nearly three-hour journey between Los Angeles and Dallas, the Delta flight operated by a 24-year-old Airbus A319, the cabin temporarily lost power. The crew onboard is trained for dealing with such scenarios and was able to quickly restore power to the cabin.
Out of an abundance of caution, the crew declared an emergency landing at DFW, where the airport accommodated them, and the aircraft was able to land without further incident. According to ABC7 Eyewitness News, the aircraft was able to make its own way to the gate. Once at the gate, passengers and crew were able to disembark. The airline shared its below statement in relation to the incident:
“The crew followed established procedures to and quickly restore power. As a precaution, they declared an emergency and landed without incident, before continuing to the gate. The safety of our customers and people comes before all else and we sincerely apologize for the experience.”
Onboard Generator Issues: The Root Cause
The root cause of the incident likely stemmed from the aircraft’s integrated drive generator. The failure of this can be attributed to worn internal components, which may lead to frequency regulation issues and then the loss of power.
It would not be the first time an Airbus A319 has experienced such a power loss; this has been seen on other operators such as Spirit Airlines and Lufthansa in recent years. During such events, it is common for the Ram Air Turbine to deploy, which generates emergency power. It remains unclear if this incident saw the RAT deploy.
These issues often arise from long-term wear and tear on the aircraft, and some generators can unexpectedly fail to regulate the needed output frequency, forcing the generator onboard to disconnect. Faulty generators have highlighted the false differential protections that can be difficult to detect during normal maintenance reviews.
24-Year-Old Delta Air Lines Boeing 767-400ER Returns To Service After Engine Shut Down During Mid-Flight
A sudden loss of power mid-flight forces an emergency landing. What went wrong on this international journey?
N334NB Aircraft Flight Details
The aircraft at the centre of the incident was that of N334NB (serial number 1659). According to ch-aviation, this 24-year-old narrowbody took its first test flight back in December 2001, before being delivered to Northwest Airlines in January 2002. It was eventually transferred to Delta as part of its acquisition of Northwest in November 2009. More characteristics of the plane in the table below:
|
Aircraft Registration |
N334NB |
|---|---|
|
Serial Number (MSN) |
1659 |
|
First Flight Date |
December 22, 2001 |
|
German Airbus Registration |
D-AVYU |
|
Hex Code |
A3A5D9 |
|
Delivery Date |
January 17, 2001 (to Northwest Airlines) |
|
Transfer Date To Delta |
November 13, 2009 |
|
Configuration |
12 Delta First, 120 Delta Main (C12 / Y120) |
|
Engines |
Two x CFMI CFM56-5A5 |
Flightradar24 outlines that the aircraft had departed from Los Angeles at 9:52 am on Thursday, just 19 minutes behind its scheduled departure time of 9:35 am. The aircraft otherwise had an uneventful journey to Dallas for the two-hour and 51-minute trip, when on the final descent, the failure occurred.
The plane touched down at 2:43 pm, six minutes behind its expected arrival time of 2:37 pm. The airplane remains on the apron at Dallas while further maintenance checks are carried out. Before Delta flight 521, the airline had operated one earlier service from Houston to Los Angeles that morning on schedule.
