Navigation Errors, Wings Air (Atr 72-212 PK-WHF); Susilo Sintang Airport, Pontianak, KNKT.18.06.24.04

On 19 June 2018, an ATR 72-212 aircraft was being operated by Wings Abadi Airlines (Wings Air) on a scheduled passenger flight from Supadio International Airport, Pontianak (WIOO) with intended destination of Tebelian Airport (WIOS), Sintang. The flight was inadvertently landed at Susilo Airport which had been closed for operation.

Prior to departure, the pilot received the flight documents from the Flight Operation Officer (FOO) and no briefing related to the closing of Susilo Airport and moved to Tebelian Airport.

The information available on the aircraft library and website (aimindonesia) contained information of Susilo Airport which had been closed for operation since 26 April 2018. The information related to Tebelian Airport was available on the link of AIP Supplement on the website.

The pilot reviewed the Notice to Airman (NOTAM) related to Sintang Aerodrome and noted some changes airport data of such as elevation, threshold runway elevation and NonDirectional Beacon (NDB) identification and frequency. The pilot compared the changes of the Sintang Aerodrome information with the information contained on the Airport Visual Guidance (AVG) provided by the aircraft operator which published on 2 March 2018 and effective since 9 March 2018.

At 0149 UTC, the aircraft landed on runway 08 of Susilo Airport. Prior to land, the pilot could not recall that they saw the white cross mark on the runway which indicates the runway was closed or unserviceable.

The investigation is continuing and KNKT plans to complete the investigation within 12 months since the day of the occurrence. Should any further relevant safety issues emerge during the course of the investigation, KNKT will immediately bring the issues to the attention of the relevant parties and publish as required.

At the time of issuing this Preliminary Report, the KNKT had not been informed of any safety actions resulting from this occurrence.

In this preliminary investigation report, KNKT issue safety recommendations to Wings Abadi Airline and Directorate General of Civil Aviation (DGCA) to address identified safety issues.