December 31, 2016


A Delta Air Lines Boeing 767 300 (N173DZ / DAL123) from Paris, France (LFPG) to Chicago, IL (KORD) declared a medical emergency due to a sick passenger. The aircraft diverted to Toronto, ON (CYYZ).


A Delta Air Lines Boeing 767 300 (DAL123) from Paris, France (LFPG) to Chicago, IL (KORD) declared a medical emergency approximately 300nm North of Toronto, ON. The pilot advised diverting to Toronto and that the company would make arrangements for ambulance. The aircraft landed on Runway 23 at 2129Z, with no delays.

June 18, 2010

Incident at GOOSE BAY NL (CYYR)

UPDATE TSB: A10A0066: The Delta Airlines' Boeing 757-200, operating as flight DAL123, was enroute from Shannon Ireland to New York (JFK) when the crew received a low oil quantity and pressure indication on the left engine. The engine was intentionally shut down and an emergency declared. The flight was diverted to Goose Bay and landed without further incident. Company maintenance personnel determined that the oil loss was due to a defective generator seal. After reviewing the FDR data to assess the nature of the fault, it was determined that the appropriate corrective action was to replace the seal. Company maintenance replaced the seal and released the aircraft to return to flight.
DAL123, Boeing 757-200, was enroute from Shannon (EINN) to New York (KJFK), routing 57N 050W direct LOACH at 33,000 ft. when at approximately 15:10Z, the crew shut down the port engine due to oil pressure indications and completed an emergency descent to 20,000 ft. The crew then requested and was cleared to Goose Bay (CYYR) where it landed at 15:59Z without further incident. TSB Case Closed.

May 23, 2008

Incident at approximately 15 nautical miles west of LOACH (ATS operating irregularity)

CSA050, Airbus A310, enroute from Prague (LKPR) to New York (KJFK) at 35,000 ft. was cleared to climb to 38,000 ft. but did not have the required radar separation with same direction aircraft DAL123 at 36,000 ft. TSB Case Closed.

April 3, 2000

Incident at over Lake Simcoe (Conflict - loss of separation, ATS operating irregularity)

DAL123 (N195DN) BOEING 767-332 DELTA AIR LINES INC. IFR from Zurich (Switzerland) to Cincinnati, OH (U.S.A.) DAL49, at FL350 flying IFR from Frankfurt (Germany) to Cincinnati, OH (U.S.A.), was proceeding on a heading of 225 degrees to be vectored behind DAL123 at FL350, proceeding direct to London. DAL123 was cleared up to FL390, however spacing reduced, so the controller turned both aircraft outward 20 degrees to provide the required spacing. Separation reduced to 4.2NM at the point DAL123 was climbing through FL360. The incident occurred approximately 95NM northeast of Toronto. S.O.B.: - DAL49: 264 -- 14 crew; 250 passengers; and - DAL123: 201 -- 11 crew; 190 passengers. O.P.I.: PAS Supplemental information from T.S.B. Initial Notification (#A00O0070): The McDonnell-Douglas MD-11 aircraft was in cruise IFR flight on radar vectors at FL350 to pass behind a Boeing 767-332 aircraft in cruise IFR flight at FL350. The Boeing flight crew requested and were issued clearance to climb to FL390. A loss of IFR separation occurred at FL360 when lateral spacing between the two aircraft was reduced to 4.2 miles when 5 miles lateral or 2,000 feet vertical spacing was required. When the conflict was observed the ATS Controller issued turn instructions to both aircraft to regain required lateral spacing.