Date & Time:
Oct 5, 2007 at 1200 LT
Type of aircraft:
Fletcher FU-24
Operator:
Registration:
PK-PNZ
Flight Phase:
Takeoff (climb)
Flight Type:
Spraying (Agricultural)
Survivors:
Yes
Schedule:
Libo - Libo
MSN:
172
YOM:
1971
Country:
Indonesia
Region:
Asia
Crew on board:
1
Crew fatalities:
0
Pax on board:
0
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
0
Aircraft flight hours:
14333
Circumstances:
On 5 October 2007, a Fletcher FU24-950M aircraft operated by PT. Sinar Mas Super Air, registered PK-PNZ was conducting aerial agriculture spraying activities at palm plantations of Rokan Estate, Pekanbaru, Riau. The aerial agriculture spraying divided into two sessions. Session #1 was in the morning at 23:35 UTC (06:35 LT) and conducted 27 cycles for about 3 hours flight. Session #1 was in the afternoon after daybreak at 05:00 UTC and conducted 28 cycles. The session #1 was carried out with normal and safely. One Pilot was on-board in the aircraft. The session #2, the aircraft was take-off at 05:00 using runway 18. After take-off, the pilot turned to the left to the fertilization area. The fertilization area was on the left of the runway. The pilot informed while the aircraft turned to the left, he felt the strong wind from the right. Then the aircraft was descending and the left wing hit the palm tree. After losing the wing tip, the aircraft difficult to control and crashed into the palm trees on the left runway for about 238 meters from the end of runway 18. The aircraft was substantial damaged. The pilot suffered minor injured. The weather of that day was clear and wind speed around 6 – 10 knots.
Probable cause:
Findings:
1. AIRCRAFT
- The aircraft had a valid Certificate of Airworthiness and Certificate of Registry.
- The aircraft was airworthy when dispatched for the flight.
- There was no system malfunction recorded or reported on the maintenance record.
2. PILOTS
- The pilot was held valid licensed.
- There was no information that the pilot has been trained for agricultural operation.
3. FLIGHT Technique
- The very low level and speed turning was potentially high risk to be sank while the cross wind came through.
- When the aircraft take-off and then turned to the left, the strong wind was blowing in the right wing. The pilot encounter of the downdraft while climbing
- The pilot’s actions indicated that his knowledge and understanding of the flight technique was inadequate.
4. OPERATIONS
- The operator did not have training syllabus and program for new pilot other than for the agriculture experience pilot.
5. Airstrip
- Wind shock position was under the palm trees, so that the wind speeds different from above and under the palm trees, the wind direction could not be observed by pilot prior takeoff.
- The runway strip width was 12 meters and the palm trees between the airstrip for about 30 meters and height 15 meters. It indicated the airstrip look likes a tunnel.
Contributing Factors
- The pilot was not well train on the agriculture operation,
- The pilot failed to encounter the aircraft experienced a sinking during very low level and speed,
- The operator did not have training syllabus and program for new pilot other than for the agriculture experience pilot,
- There were no agriculture operation regulations prior the accident.
1. AIRCRAFT
- The aircraft had a valid Certificate of Airworthiness and Certificate of Registry.
- The aircraft was airworthy when dispatched for the flight.
- There was no system malfunction recorded or reported on the maintenance record.
2. PILOTS
- The pilot was held valid licensed.
- There was no information that the pilot has been trained for agricultural operation.
3. FLIGHT Technique
- The very low level and speed turning was potentially high risk to be sank while the cross wind came through.
- When the aircraft take-off and then turned to the left, the strong wind was blowing in the right wing. The pilot encounter of the downdraft while climbing
- The pilot’s actions indicated that his knowledge and understanding of the flight technique was inadequate.
4. OPERATIONS
- The operator did not have training syllabus and program for new pilot other than for the agriculture experience pilot.
5. Airstrip
- Wind shock position was under the palm trees, so that the wind speeds different from above and under the palm trees, the wind direction could not be observed by pilot prior takeoff.
- The runway strip width was 12 meters and the palm trees between the airstrip for about 30 meters and height 15 meters. It indicated the airstrip look likes a tunnel.
Contributing Factors
- The pilot was not well train on the agriculture operation,
- The pilot failed to encounter the aircraft experienced a sinking during very low level and speed,
- The operator did not have training syllabus and program for new pilot other than for the agriculture experience pilot,
- There were no agriculture operation regulations prior the accident.
Final Report:
PK-PNZ.pdf699.5 KB
