44 Years ago today: On 15 March 1974 a Sterling Airways Caravelle jet caught fire when the right main gear collapsed during taxiing at Tehran-Mehrabad Airport, Iran; 15 passengers were killed.

Date:Friday 15 March 1974
Time:08:09
Type: Sud Aviation SE-210 Caravelle 10B3
Operator:Sterling Airways
Registration:OY-STK
C/n / msn:266
First flight:1970
Total airframe hrs:13773
Engines:Pratt & Whitney JT8D-9
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 15 / Occupants: 92
Total:Fatalities: 15 / Occupants: 96
Airplane damage:Destroyed
Airplane fate:Written off (damaged beyond repair)
Location:Tehran-Mehrabad Airport (THR) (   Iran)
Crash site elevation:1208 m (3963 feet) amsl
Phase:Taxi (TXI)
Nature:International Scheduled Passenger
Departure airport:Tehran-Mehrabad Airport (THR/OIII), Iran
Destination airport:København-Kastrup Airport (CPH/EKCH), Denmark
Flightnumber:NB901

Narrative:
The Caravelle was backtracking runway 29L when the crew were asked to expedite taxiing and clear the runway on the run-up area because of traffic on finals. While initiating a left turn at the end of the runway the right main gear collapsed. The right wing fuel tank ruptured and the escaping fuel ignited while the Caravelle slid for 90 m before coming to rest.
Evacuation of the aircraft was carried out through exits on the left side of the aircraft.

Probable Cause:

Causes: The right main landing gear failed as a result of the propagation of fatigue cracks in the lower right hand candelabre of RIB 44.