Northwest Airlines Flight 5 (1990)

For the 1941 flight that crashed in Minnesota, see Northwest Airlines Flight 5 (1941).

Northwest Airlines Flight 5

The aircraft involved in the incident
Incident
Date	January 4, 1990
Summary	In-flight engine failure and subsequent loss of the engine
Site	near Madison, Florida, United States 30°38′N 83°24′W ⧼validator-fatal-error⧽
Aircraft
Aircraft type	Boeing 727-251
Operator	Northwest Airlines
Registration	N280US
Flight origin	Miami International Airport
Destination	Minneapolis−Saint Paul International Airport
Occupants	145
Passengers	139
Crew	6
Fatalities	0
Injuries	0
Survivors	145

Northwest Airlines Flight 5 was a flight from Miami International Airport to Minneapolis−Saint Paul International Airport, which, on January 4, 1990, suffered the loss of the number three (starboard) engine at 35,000 feet (11,000 m) in mid-flight over Madison, Florida.

The Boeing 727-251, operated by Northwest Airlines, took off from Miami at 08:15 EST on the morning of January 4, 1990. About an hour later, at approximately 09:10 EST, the pilots reported hearing a loud bang towards the rear of the aircraft. The 14-year-old jet continued to fly normally, and the crew, not knowing that an engine had fallen off, flew for almost 50 minutes before carrying out a safe emergency landing at Tampa International Airport at 09:58 EST. The engine, a Pratt & Whitney JT8D-15, was found a day later in a field near Madison, Florida.

After landing, inspection crews found the forward lavatory external seal was missing and had probably been improperly installed, causing a leakage when the plane was pressurized. The missing seal caused frozen chunks of lavatory fluid to be ingested by the number three engine, thus damaging the compressor blades. Upon failure, the engine separated from the aircraft fuselage, as it had been designed to do.

The National Transportation Safety Board (NTSB) determined the probable cause of the incident to be "the failure of company service personnel to properly service the airplane forward lavatory."

See also

Other articles of the topic Florida : Universal Studios Florida
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• American Airlines Flight 191
• El Al Flight 1862
• China Airlines Flight 358

External links

• NTSB Brief
• Aviation Safety Network description

Template:Aviation accidents and incidents in the United States in the 1990s

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