International regulations and human factors behind decision to investigate Kannonkoski plane crash

Photo: OTKES

“There is often discussion about why SIAF does or does not launch a safety investigation. At times, it seems as though we, so to speak, head out although an incident appears minor, while at other times an incident that seems more significant goes uninvestigated. However, the decision to investigate is always carefully considered and is based not only on an assessment (preliminary investigation) but also on legislation. The aircraft involved in the Kannonkoski aviation accident was a type-certified Piper Cherokee PA-28-180, and the person on board suffered fatal injuries, so we are already obligated under the EU regulation alone to launch a safety investigation into the accident,” states Janne Kotiranta, head of the investigation.

The aircraft took off from a private airfield in Kannonkoski.

“We are naturally interested in the airfield’s operating procedures and the condition of the runway in relation to the aircraft’s performance. In practice, the airfield in question is a large grass field. In addition, our investigation will focus on the pilot’s background, such as his flight experience with this type of aircraft and his medical history. A more detailed technical examination will also be conducted on the aircraft wreckage itself. For this reason, the wreckage was transported to a location where our investigators can continue its examination. We will review the aircraft’s maintenance history and airworthiness as well, ” says Kotiranta.

He continues: “ We often have to proceed by elimination—as is the case here. A potential technical factor can likely be identified fairly quickly—and if there isn’t one, we may be on the trail of an airfield or human factor -related factor in the accident mechanism. Or, of course, a combination of the two. Naturally, we are also examining the rescue operations and authorities’ activities overall. ”

The purpose of the safety investigation is to improve public safety and prevent new accidents and incidents. Matters of guilt and liability will not be addressed in the investigation.

The duration of the safety investigation is approximately 9 to 12 months.