| Date: | 23 September 1961 |
| Type: | Struck hill on final approach |
| Occurrence Type: | Crash |
| Site: | Karanlıktepe, Ankara Province, Turkey |
| Aircraft Type: | Fokker F27 Friendship 100 |
| Tail Number: | TC-TAY |
| Operator: | Turkish Airlines |
| Stopover: | Adana Şakirpaşa Airport, Turkey |
| Destination: | Esenboğa International Airport, Ankara, Turkey |
| Fatalities: | 28 |
| Survivors: | 1 |
| Passengers: | 25 |
| Crew: | 4 |
Turkish Airlines Flight 835 was a scheduled domestic passenger flight from Adana Şakirpaşa Airport,to Esenboğa International Airport, Ankara, Turkey. On 23 September 1961 at 20:02 EET (18:02 UTC), the aircraft operating the flight, a brand-new Fokker F27 Friendship 100 struck the Karanlıktepe hill in Ankara Province on final approach some 18km (11miles) off the runway centerline.[1]
There were 25 passengers and four crew on board, of which 24 passengers and all four crew members were killed in the accident.[2]
The probable cause of the accident was that the aircraft was not in the normal flying pattern and was well below its designated altitude.[3]