Cessna C208B Caravan PK-BVU (Susi Air) — Rokot Airport (WIEB)

According to Aeronautical Information Publication (AIP) Volume IV subchapter WIEB AD 2.3, the operational hours to provide the Aeronautical Flight Information Service (AFIS) at Sipora Aerodrome Flight Information Zone (AFIZ) is from 0000 to 0700 UTC (0700 to 1400 LT) and operates daily. However, Operation Standard Manual of Rokot Air Traffic Service (ATS) unit subchapter 3.3 stated that the AFIS i...

According to Operation Standard Manual of Rokot Air Traffic Service (ATS) unit subchapter stated that the minimum operational personnel at Rokot are two personnel consisting of one ACO and one supervisor. In 2018, the Rokot Air Traffic Services (ATS) unit has two qualified ACOs and in 2019, one of the ACO was reassigned to another ATS unit. Since that time, the Rokot ATS unit has only one qualifie...

Therefore, KNKT recommends the DGCA to establish and implement detailed procedures in conducting the supervision activities of an airport construction process as required by Minister of Transportation Decree Number PM32 of 2021.

DGCA Manual of Standard (MOS) Civil Aviation Safety Regulation (CASR) Part 139 described that closed runway marking may also be displayed on a temporary closed runway or portion thereof, except that such marking may be omitted when the closing is of short duration and adequate warning by air traffic services is provided. The marking shall be placed at each end of the runway, or portion thereof, de...

On 30 May 2023, Rokot Airport operator submitted Notice to Airman Notice (NOTAM) which advised that there was work in progress on a new runway which located 228.6 meters from right side of threshold Runway 17. The NOTAM was published and effective from 30 May 2023 at 0700 UTC until 30 June 2023 at 1700 UTC. As the available closed runway markings had not been in accordance with the standard requir...

In 2019, the Airport Register for Rokot Airport was issued by the Directorate General of Civil Aviation (DGCA) and was valid until 11 November 2022. Until the day of the occurrence, the renewal process was not requested by the airport operator. The invalidity of the Airport Register may not ensure that the airport operation has met the standard requirement. Therefore, KNKT recommends the Rokot Air...

The aircraft was equipped with Garmin G1000 Global Positioning System (GPS), which has capability of flight data logging. The logging data can be used as Flight Data Analysis for the safety management system and support the investigation process to enhance safety. All these recorded parameters are stored on a Secure Digital (SD) data card which inserts into the top card slot of the Multi-Function...