Indian Airlines Flight 257

Indian Airlines Flight 257
An Indian Airlines Boeing 737-2A8 similar to the aircraft involved in the accident.
Accident
Date16 August 1991 (1991-08-16)
SummaryControlled flight into terrain due to pilot error
SiteThangjing Hill, Manipur, India
24°29′54″N 93°40′20″E / 24.49833°N 93.67222°E / 24.49833; 93.67222
Aircraft
Aircraft typeBoeing 737-2A8
OperatorIndian Airlines
IATA flight No.IC257
ICAO flight No.IAC257
Call signINDIA 257
RegistrationVT-EFL
Flight originCalcutta airport, West Bengal, India
StopoverImphal Municipal Airport, Manipur, India
DestinationDimapur Airport, Nagaland, India
Occupants69
Passengers63
Crew6
Fatalities69
Survivors0

Indian Airlines Flight 257 was an Indian Airlines domestic passenger flight operating on the CalcuttaImphalDimapur route. On 16 August 1991, the Boeing 737-2A8 registered VT-EFL crashed into the hilly terrain of Thangjing Hill during its descent, killing all 63 passengers and 6 crew members on board.

The crash was attributed to the pilot's non-adherence to the written procedure for an approach to Imphal. The crew decided to violate the approach procedure by taking a short cut and eventually slammed the aircraft into the hilly terrain. During the approach, the crew did not adequately monitor their instruments, despite the deteriorating weather condition at the time. Their actions were influenced by the pilot's decision to solely rely on his extreme familiarity with the terrain.