Crash of a Cessna 208 Caravan I in Ilaga: 1 killed

Date & Time: Oct 25, 2021 at 0810 LT
Type of aircraft:
Operator:
Registration:
PK-SNN
Flight Type:
Survivors:
Yes
Schedule:
Timika - Ilaga
MSN:
208-0556
YOM:
2014
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
On final approach to Ilaga Airport, the crew encountered poor visibility due to foggy conditions. The single engine airplane impacted ground near the runway 25 threshold, lost its undercarriage and slid for few dozen metres before coming to rest on the runway. One of the pilot was killed.

Crash of a De Havilland DHC-6 Twin Otter 400 near Kampung Mamontoga: 4 killed

Date & Time: Sep 18, 2019 at 1100 LT
Operator:
Registration:
PK-CDC
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Timika - Ilaga
MSN:
950
YOM:
2016
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
The twin engine airplane departed Timika Airport at 1036LT on a cargo flight to Ilaga, carrying one passenger, a crew of four and a load of 1,7 ton of rice. At 1054LT, the crew gave his ETA at Ilaga Airport when the contact was lost about six minutes later. As the airplane failed to arrive at destination, SAR operations were initiated. The wreckage was found four days later in a mountainous terrain, at an altitude of 4,115 meters, about 10 km from Kampung Mamontoga. The aircraft was totally destroyed and all four occupants were killed.

Crash of a De Havilland DHC-4T Caribou near Ilaga: 4 killed

Date & Time: Oct 31, 2016 at 0830 LT
Type of aircraft:
Registration:
PK-SWW
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Timika - Ilaga
MSN:
303
YOM:
1972
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
4
Captain / Total flying hours:
9336
Captain / Total hours on type:
38.00
Copilot / Total flying hours:
3636
Copilot / Total hours on type:
17
Aircraft flight hours:
2748
Aircraft flight cycles:
5953
Circumstances:
A DHC-4 Caribou aircraft, registered PK-SWW was being operated by Perkumpulan Penerbangan Alfa Indonesia, on 31 October 2016 on an unscheduled cargo flight from Moses Kilangin Airport Timika, with intended destination to Kaminggaru Aerodrome, Ilaga Papua. On board on this flight was 4 persons consisted of two pilots, one company engineer and one flight operation officer. At 2257 UTC, the aircraft departed Timika with intended cruising altitude of 12,500 feet and estimated time of arrival Ilaga at 2327 UTC. At 2323 UTC, the pilot made initial contact with Ilaga Aerodrome Flight Information Services (AFIS) officer and reported that the aircraft position was at Ilaga Pass and informed the estimate time of arrival Ilaga would be on 2327 UTC. Ilaga Aerodrome Flight Information Services (AFIS) officer advised to continue descend to circuit altitude and to report when position on downwind. At 2330 UTC, the AFIS officer called the pilot and was not replied. The AFIS officer asked pilot of another aircraft in the vicinity to contact the pilot of the DHC-4 Caribou aircraft and did not reply. At 0020 UTC, Sentani Aeronautical Information Service (AIS) officer declared the aircraft status as ALERFA. At 0022 UTC, Timika Tower controller received information from a pilot of an aircraft that Emergency Locator Transmitter (ELT) signal was detected approximately at 40 – 45 Nm with radial 060° from TMK VOR (Very High Frequency Omni Range) or approximately at coordinate 4°7’46” S; 137°38’11” E. This position was between Ilaga Pass and Jila Pass. At 0053 UTC, the aircraft declared as DETRESFA. On 1 November 2016, the aircraft wreckage was found on a ridge of mountain between Ilaga Pass and Jila Pass at coordinate 4°5’55.10” S; 137°38’47.60” E with altitude approximately of 13,000 feet. All occupants were fatally injured and the aircraft destroyed by impact force.
Probable cause:
Controlled flight into terrain.
Final Report:

Crash of a Pilatus PC-6/B2-H4 Turbo Porter near Mulia: 11 killed

Date & Time: Apr 17, 2009 at 1015 LT
Operator:
Registration:
PK-LTJ
Flight Phase:
Survivors:
No
Site:
Schedule:
Ilaga - Mulia
MSN:
959
YOM:
2008
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
11
Captain / Total flying hours:
2664
Captain / Total hours on type:
1412.00
Aircraft flight hours:
542
Circumstances:
On the morning of 17 April 2009, a Pilatus PC-6/B2-H4 Turbo Porter aircraft, registered PK-LTJ, operated by PT. Mimika Air, charter flight from Ilaga to Mulia in the Puncak Jaya District of Papua. The Mimika Local Government owned the aircraft. There were 11 people on board; one pilot, one observer, and nine passengers comprised of eight adults and one infant. The aircraft was also carrying National Government election boxes. The flight in accordance with the visual flight rules was estimated to take 18 minutes. There was no record of communication with the aircraft during the flight. Two minutes after the estimated time of arrival, when the Porter had not arrived, a search was commenced. On 18 April, search aircraft located the wreckage of the Porter at an elevation of about 12,000 feet on Mt Gergaji. The location was on the direct track between Ilaga and Mulia. The aircraft impacted the ground in an inverted attitude, and was destroyed by the impact forces and the post-impact fire. All occupants were fatally injured. The weather in the valleys along the route was mostly clear, with cloud on the mountains. The route flown by the pilot was the direct track, which passed over a mountain range, with a high peak adjacent to, and west of the track at about the midway point, at 13,700 feet. The investigation determined that it was likely that the pilot had flown the aircraft into cloud and lost control of the aircraft in instrument meteorological conditions. The impact signature was consistent with uncontrolled flight at the time of impact. This probably resulted from the pilot becoming spatially disoriented after entering cloud.
Probable cause:
The pilot may not have had adequate knowledge of the route and weather conditions, and may have been relying on Global Positioning System navigation, and was attempting to climb on the direct track over Mt Gergaji. It was likely that the pilot became spatially disoriented after entering cloud while operating under visual flight procedures, leading to a loss of control and uncontrolled impact with terrain.
Final Report:

Crash of a De Havilland DHC-6 Twin Otter 300 on Mt Puncak Jaya: 12 killed

Date & Time: Nov 17, 2006 at 0800 LT
Operator:
Registration:
PK-YPY
Flight Phase:
Survivors:
No
Site:
Schedule:
Mulia – Ilaga
MSN:
535
YOM:
1977
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
12
Circumstances:
The twin engine aircraft departed Mulia on a special flight to Ilaga, carrying a delegation of nine people flying to Ilaga to visit several districts of the Irian Jaya province on behalf of a talks between several administrations. While cruising at an altitude of 10,500 feet in marginal weather conditions, the aircraft struck Mt Puncak Jaya. The wreckage was found the following day. All 12 occupants were killed.
Probable cause:
Controlled flight into terrain.

Crash of a De Havilland DHC-6 Twin Otter 300 in Ilaga

Date & Time: Aug 6, 1999
Operator:
Registration:
PK-NUU
Flight Type:
Survivors:
Yes
MSN:
478
YOM:
1975
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was completing a positioning flight to Ilaga Airport. After touchdown, the twin engine aircraft was unable to stop within the remaining distance. It overran, lost its nose gear and came to rest. Both pilots escaped uninjured and the aircraft was damaged beyond repair.

Crash of a De Havilland DHC-6 Twin Otter 300 in Ilaga

Date & Time: Sep 30, 1996 at 1215 LT
Operator:
Registration:
PK-YPF
Survivors:
Yes
MSN:
210
YOM:
1969
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The approach to Ilaga Airport was completed in poor weather conditions due to heavy rain falls. After landing on a wet runway surface, the aircraft was unable to stop within the remaining distance, overran and came to rest down an embankment. All five occupants escaped uninjured while the aircraft was damaged beyond repair.

Crash of a De Havilland DHC-6 Twin Otter 100 in Ilaga: 7 killed

Date & Time: May 25, 1987
Operator:
Registration:
PK-MAM
Survivors:
Yes
Schedule:
Wamena – Ilaga
MSN:
76
YOM:
1967
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
28
Pax fatalities:
Other fatalities:
Total fatalities:
7
Circumstances:
Crashed in unknown circumstances while on approach to Ilaga Airport. Seven occupants were killed and 23 others were injured.