The ATSB is investigating a fuel leak involving an Airbus A321, registered VH-OFW, about 90 km north of Olympic Dam Airport, South Australia, on 25 May 2026.
The aircraft was operating as Jetstar flight JQ37, scheduled from Sydney to Denpasar, Indonesia. During cruise, the crew detected a fuel leak and shut down the number 2 engine in accordance with the published procedure before diverting the aircraft to Adelaide.
The evidence collection phase of the investigation will involve examining aircraft components, interviewing involved parties, examination of maintenance records, retrieving and reviewing recorded data, and the collection of other relevant information.
A final report will be released at the conclusion of the investigation. Should a critical safety issue be identified during the course of the investigation, the ATSB will immediately notify relevant parties, so that appropriate safety action can be taken.
Occurrence summary
| Investigation number | AO-2026-081 |
|---|---|
| Occurrence date | 25/05/2026 |
| Location | about 90 km north of Olympic Dam Airport |
| State | South Australia |
| Anticipated completion | Q4 2026 |
| Investigation level | Short |
| Investigation type | Occurrence Investigation |
| Investigation phase | Evidence collection |
| Investigation status | Active |
| Mode of transport | Aviation |
| Aviation occurrence category | Diversion/return, Fuel, Leaking or venting |
| Occurrence class | Incident |
| Highest injury level | None |
Aircraft details
| Manufacturer | Airbus |
|---|---|
| Model | A321-251NX |
| Registration | VH-OFW |
| Serial number | 11380 |
| Aircraft operator | Jetstar Airways |
| Sector | Jet |
| Operation type | Part 121 Air transport operations - larger aeroplanes |
| Activity | Commercial air transport-Scheduled-International |
| Departure point | Sydney Airport, NSW |
| Destination | Denpasar Airport, Indonesia |
| Damage | Nil |