You can contribute by submitting additional or updated information.
| Date: | Saturday 27 May 2023 |
| Time: | 12:38 |
| Type: |  Cessna 650 Citation III |
| Owner/operator: | North Flying |
| Registration: | OY-JPJ |
| MSN: | 650-0060 |
| Year of manufacture: | 1984 |
| Engine model: | Honeywell TFE731-3C |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | 3 nm W of Aalborg -
 Denmark
|
| Phase: | Initial climb |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Aalborg Airport (AAL/EKYT) |
| Antalya Airport (AYT/LTAI) | |
| Investigating agency: | HCLJ |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Cessna 650 Citation III returned to land at Aalborg Airport after smoke had developed after takeoff.
There were two pilots and two passengers on board and they are unharmed, but taken to Aalborg University Hospital to be checked for smoke poisoning.
The AIB safety investigation identified a dirty secondary heat exchanger in the lower Environmental Control Unit (ECU) which likely contributed to failure of the lower Air Cycle Machine (ACM).
The failure of the lower ACM resulted in oil fumes, vapours and smoke from the ACM passing through the air conditioning system into the cockpit.
The operator’s maintenance programme lacked routine inspections and cleaning of heat exchangers due to the absence of clear and unambiguous recommendations in the aircraft maintenance programme.
This likely contributed to the serious incident.
Accident investigation:
 |
|
Sources:
https://www.berlingske.dk/samfund/lille-privatfly-paa-vej-mod-tyrkiet-noedlander-i-aalborg
https://www.flightradar24.com/data/aircraft/oy-jpj#3076752d
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-May-2023 14:42 | harro | Added |
| 03-Apr-2025 10:29 | ASN | Updated [Location, Destination airport, Narrative, ] |
| 03-Apr-2025 13:05 | ASN | Updated [Accident report, ] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2025 Flight Safety Foundation