ASN Wikibase Occurrence # 191457
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| Date: | Wednesday 16 November 2016 |
| Time: | 07:51 LT |
| Type: |  Cessna 208B Grand Caravan |
| Owner/operator: | Aviair Pty Ltd |
| Registration: | VH-LNH |
| MSN: | 208B0590 |
| Year of manufacture: | 1997 |
| Fatalities: | Fatalities: 0 / Occupants: 13 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | 9 km north of Solomon, WA -
 Australia
|
| Phase: | Initial climb |
| Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
| Departure airport: | Solomon YSOL |
| Karratha YPKA | |
| Investigating agency: | ATSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On the morning of 16 November 2016, a single-engine Cessna 208B aircraft, registered VH-LNH, operated by Aviair Pty Ltd, departed Solomon Airport, Australia on a charter flight to Karratha. On-board the aircraft were two flight crew and 11 passengers. Approximately 8 km from the airport, while climbing through an altitude of approximately 4,600 ft, the aircraft sustained an engine failure. The flight crew heard a loud bang and observed smoke billowing from the exhaust.
The flight crew elected to conduct an emergency landing on a nearby dirt road associated with the Solomon mine precinct. The landing was accomplished without injury to the occupants and the aircraft sustained only minor damage.
Contributing factors
- A compressor turbine blade from the engine developed fatigue cracking and fractured after approximately 1.8 hours of operation, leading to an in-flight engine failure and resultant forced landing of the aircraft.
- The compressor turbine vane ring that was repaired in accordance with STI 72-50-254 and fitted to the engine contained variations in aerofoil geometry that likely led to an increase in vibratory stresses and the associated development of fatigue cracking and fracture of the compressor turbine blade.
- Pratt & Whitney Canada (PWC) PT6A-114A engines fitted with compressor turbine vane rings that have been repaired in accordance with the United States Federal Aviation Administration-approved scheme STI 72-50-254 have a significantly increased likelihood of CMSX-6 compressor turbine blade fracture and subsequent failure of the engine compared to those engines fitted with PWC-manufactured compressor turbine vane rings. [Safety Issue]
Accident investigation:
 |
|
Sources:
https://www.atsb.gov.au/publications/investigation_reports/2016/aair/ao-2016-155/
History of this aircraft
Other occurrences involving this aircraft
| 23 September 2000 | N590TA | Telford Aviation | 0 | 3,2 km NW of Greenville, ME |  |
sub |
| CFIT | ||||||
| 8 August 2015 | VH-LNH | Aviair | 0 | near Kununurra Airport, WA | |
min |
Images:
Photo: ATSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Nov-2016 13:08 | Kardz | Added |
| 19-Dec-2020 17:39 | harro | Updated [Total occupants, Other fatalities, Location, Damage, Narrative, Category, Accident report, Photo] |
Corrections or additions? ... Edit this accident description
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