You can contribute by submitting additional or updated information.
| Date: | Thursday 13 December 2012 |
| Time: | c. 08:05 UTC |
| Type: |  ATR 42-500 |
| Owner/operator: | Oman Air |
| Registration: | A4O-AS |
| MSN: | 574 |
| Year of manufacture: | 1998 |
| Engine model: | P&W Canada PW127 |
| Fatalities: | Fatalities: 0 / Occupants: 47 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | near Khasab Airport (KHS/OOKB) -
 Oman
|
| Phase: | Approach |
| Nature: | Passenger - Scheduled |
| Departure airport: | Muscat International Airport (MCT/OOMS) |
| Khasab Airport (KHS/OOKB) | |
| Investigating agency: | OTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On 13 December 2012 at 08.05 UTC, the pilot of an ATR 42-500, operating from Muscat to Khasab, had a TCAS traffic alert on final approach to runway 19 at destination, and he had to carry out visually his emergency avoidance maneuver, below 700ft AGL in a difficult mountainous environment. Conflicting traffic was a Dubai Government registered Agusta Westland AW139 helicopter, which was flying VFR routing along the coast, out of Dubai via Khasab city, Habalayn, Diba and back to Dubai. When the incident took place, the helicopter was on right turn at 1500ft QNH after having cleared a hill West of Khasab, heading East with intention to cross the extended centreline of runway 19. The helicopter pilot had not been able to establish radio contact with Khasab ATC, the traffic information on his TCAS (helicopter TCAS has no Resolution Advisory capability). Due to the right turn, the helicopter pilot didn' t have visual contact with the ATR-42 traffic thus there is no any avoidance maneuver from the helicopter. Both aircraft continued their intented flights, the ATR landed safely and the helicopter continued its flight as planned back to Dubai with no further events. Minimum separation was evaluated by the ATR flight crew, as 150ft vertically and INM horizontally. There were no reports of any injury nor any damage.
Accident investigation:
 |
|
Sources:
https://www.mtcit.gov.om/ITAPortal/Data/SiteImgGallery/202411811312993/Final%20Report%208.pdf
https://www.jetphotos.com/photo/7286949 (Photo)
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Jul-2025 14:46 | Justanormalperson | Added |
| 26-Jul-2025 14:47 | Justanormalperson | Updated |
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