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| Date: | Saturday 19 October 2024 |
| Time: | 15:00 |
| Type: |  de Havilland Canada DHC-6 Twin Otter 300 |
| Owner/operator: | Kobio Aviation |
| Registration: | P2-KAL |
| MSN: | 715 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 45549 hours |
| Cycles: | 59339 flights |
| Engine model: | P&W Canada PT6A-27 |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial, repaired |
| Category: | Accident |
| Location: | Kairik Airstrip (AYKX) -
 Papua New Guinea
|
| Phase: | Take off |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Kairik Airstrip |
| Mt Hagen | |
| Investigating agency: | AIC PNG |
| Confidence Rating: |  Accident investigation report completed and information captured |
The DHC-6 Twin Otter veered off runway 05 at Kairik Airstrip during takeoff and ran into a ditch, sustaining substantial damage.
During the take-off roll, the aircraft veered to the left of the runway. The crew attempted to correct this by applying right rudder and asymmetric power. However, the aircraft continued veering left onto the grass surface.
The flight crew decided to abort the takeoff and applied full reverse thrust and brakes. The grass was wet due to rain on the accident day and the days before, causing the aircraft to slide into a drainage ditch.
The aircraft sustained substantial damage to its left wing and nose.
Contributing Factors
The investigation determined that the accident resulted from a combination of operational, human, and environmental factors. During a tight left turn onto RWY 05, excessive tiller inputs led to sequential overcorrections, misaligning the nosewheel to the right of the centerline. The crew omitted the manufacturer-required 3 metre forward roll check to verify nosewheel alignment with the centreline, an item not included in the operator’s SOPs, preventing detection of this misalignment.
When the take-off roll began, the aircraft veered right. In response, the crew applied left rudder and asymmetric power; however, the inputs were excessive, causing a sharp veer left across the centerline and a loss of directional control.
The wet and slippery grass surface adjacent to the runway significantly reduced tyre traction and rendered recovery efforts ineffective. Despite attempts to regain control, the aircraft continued onto the grass, where the left wingtip struck an embankment, causing a sharp turn and a nose impact with a drainage ditch.
The pairing of a newly endorsed pilot ICUS with a new IP increased risks during this high-workload phase. This, combined with procedural gaps, improper control inputs, and adverse runway conditions, contributed to the accident
Accident investigation:
 |
|
Sources:
PNG Aviation social media FB page
https://aic.gov.pg/sites/default/files/2024-10/AIC%2024-2001%20P2-BBM%20Media%20Release_1.pdf
History of this aircraft
Other occurrences involving this aircraft
| 23 June 2025 | P2-KAL | Kobio Aviation | 0 | Dusin Airport (AYDS) | |
unk |
| Tailstrike | ||||||
Location
Images:
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Oct-2024 07:26 | Petropavlovsk | Added |
| 19-Oct-2024 07:28 | ASN | Updated [Aircraft type, Total fatalities, Other fatalities, Location, Phase, Nature, Embed code, Damage, Narrative, ] |
| 19-Oct-2024 07:30 | ASN | Updated [Other fatalities, Category, ] |
| 19-Oct-2024 15:24 | ASN | Updated [Other fatalities, Phase, Destination airport, ] |
| 20-Oct-2024 06:51 | Anon. | Updated [Other fatalities, Location, ] |
| 20-Oct-2024 19:50 | ASN | Updated [Time, Total occupants, Other fatalities, Location, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative, ] |
| 20-Oct-2024 19:51 | ASN | Updated [Other fatalities, ] |
| 19-Nov-2024 10:56 | ASN | Updated [Time, Other fatalities, Nature, Narrative, Accident report, ] |
| 06-Jun-2025 09:24 | ASN | Updated [Narrative, Accident report, ] |
| 06-Jun-2025 09:24 | ASN | Updated |
| 06-Jun-2025 09:29 | ASN | Updated [Location, Photo, ] |
| 06-Jun-2025 09:30 | ASN | Updated [Photo, ] |
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