Delta Air Lines repaired a Boeing 737-900ER and returned it to service less than 48 hours after an engine failure, according to a May 29 report. Earlier in the week, flight DL2791 was departing from Philadelphia International Airport for Minneapolis-St. Paul International Airport when the crew reported a right-hand engine failure during ascent at 14,000 feet. The aircraft safely returned to Philadelphia about 25 minutes after departure, where passengers disembarked and were rebooked on replacement flights.
Flight data shows that the aircraft, registered as N833DN, remained grounded overnight for inspection and repair of its CFM56-7BE engine. After receiving clearance to resume operations, the plane flew from Philadelphia to Hartsfield-Jackson Atlanta International Airport on May 26 and has since resumed normal service with multiple daily flights.
The cause of the engine failure remains unclear. Possible causes include low or degraded oil leading to improper lubrication, coolant leaks causing overheating, abnormal combustion or detonation, broken timing belts, ignition system failures, or fuel contamination.
N833DN is a Boeing 737-900ER delivered in January 2015 and configured with two classes: domestic First class and Main Cabin seating for a total of 180 passengers. Delta operates more than 160 Boeing 737-900ERs as part of its narrowbody fleet alongside other models such as the Boeing 737-800 and Airbus A220 series.
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