Boeing 767 N193DN

Summary

On 4 December 2018 at about 18:00 local time, a Boeing 767 registered N193DN, operated by Delta Air Lines, was involved in an accident near SUNNS intersection, Osaka, Japan. 95 people were on board and one was seriously injured, 2 had minor injuries. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

4 December 2018 at 18:00

Classification

Accident

Location

SUNNS intersection, Osaka, Japan

Coordinates

34.8047, 141.7383

Aircraft

Boeing 767

Registration

N193DN

Category

Airplane

Year built

1997

Engines

2

Operator

Delta Air Lines

Operating rule

Part 121: Air Carrier

Phase of flight

Not recorded

Route

Osaka → Honolulu

Aircraft damage

Not recorded

Weather

Unk

Light

Night

NTSB number

DCA19CA034

1 person was seriously injured.

The airplane’s encounter with severe turbulence.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

On December 4, 2018, about 2130 Japan standard time, Delta Air Lines flight 278, N193DN, a Boeing 767-300ER, encountered severe turbulence during cruise. Of the 95 passengers and crew onboard, one flight attendant received serious injuries and two flight attendants received minor injuries. The airplane was not damaged. The regularly scheduled international passenger flight was operating under the provisions of 14 Code of Federal Regulations Part 121 from Kansai International Airport (RJBB), Osaka, Japan, to Honolulu International Airport (PHNL), Honolulu, Hawaii. The first officer was the pilot flying, and the captain was pilot monitoring. According to the captain, the flight had experienced continuous light turbulence during the climb. Upon reaching FL350, in the moonless night, and in smooth air, the captain said that he deactivated the seat belt sign, and released the flight attendants to begin cabin service, while also giving a precautionary notice on the interphone to remain seated with the seatbelts fastened as much as possible. He added that the weather radar was set with the Gain on AUTO, and it was depicting green radar returns on its display. He said that they were approaching SUNNS intersection and noted that the radar showed a light green return. He said he discussed it with the first officer, and they both agreed to request a turn and a climb to avoid the depicted weather. After clearance was given to make the turn, the captain said that he turned the seatbelt sign ON, and made an announcement for everyone, including the flight attendants, to be seated.  As the flight made the course deviation to avoid the weather, the captain indicated that the radar gave more definition in its depiction, and the lightning illumination emanating from the cloud showed that the cloud extended about 1,000 feet above their flight level, so they continued the turn to remain outside the green weather return depiction. He said that the radar depiction suddenly showed a faint dot of red at its center, and at that time the ride went immediately from smooth to severe turbulence, without any intervening intermediate intensities being noted.  He said the airplane climbed about a few hundred feet and a momentary engine indicating and crew alerting system (EICAS) overspeed message occurred. He further stated that the turbulence came in two waves, and it lasted less than 30 seconds. The airplane then recovered back to FL350, and light chop continued. During the turbulence encounter, the flight attendants were in the middle of meal service. As a result, two flight attendants sustained minor injuries and one flight attendant fractured an ankle.

Quoted verbatim from the NTSB record.