17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Join this forum to discuss the latest news that happened in the world of commercial aviation.

Moderator: Latest news team

Post Reply
stratofreighter
Posts: 791
Joined: 07 Sep 2006, 16:50

17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Post by stratofreighter » 17 Mar 2017, 07:27

http://www.airnieuws.nl/phregister/499/499.html updates per 02 Okt 2018: LOTS of Dutch Aviation news(photo) updates... . ;)

User avatar
luchtzak
Posts: 10347
Joined: 18 Sep 2002, 00:00
Location: Hofstade, Zemst - Belgium
Contact:

Re: 17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Post by luchtzak » 17 Mar 2017, 08:49

Thx for sharing! I am impressed this can happen!

Wrote a small article based on Twitter feeds:

http://www.aviation24.be/airlines/rex/rex ... y-airport/

User avatar
sn26567
Posts: 33633
Joined: 13 Feb 2003, 00:00
Location: Rosières/Rozieren, Belgium
Contact:

Re: 17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Post by sn26567 » 20 Mar 2017, 18:42

Regional Express (Australia) grounded an additional five turboprops as an investigation continues into how a propeller fell off its SF340 as it was approaching Sydney Airport on 17 March 2017.
André
ex Sabena #26567

User avatar
sn26567
Posts: 33633
Joined: 13 Feb 2003, 00:00
Location: Rosières/Rozieren, Belgium
Contact:

Re: 17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Post by sn26567 » 21 Mar 2017, 15:12

The missing propeller from Rex Flight 768 has been located in one piece in bushland near Revesby Heights.

Image
André
ex Sabena #26567

User avatar
sn26567
Posts: 33633
Joined: 13 Feb 2003, 00:00
Location: Rosières/Rozieren, Belgium
Contact:

Re: 17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Post by sn26567 » 27 Jun 2017, 22:55

On Jun 27th 2017 the ATSB provided an update stating:

The engine manufacturer’s preliminary metallurgical analysis of the fractured shaft has identified that fatigue cracking in the propeller main shaft originated within a dowel pin bore that was located on the forward face of the propeller flange from the propeller reduction gearbox (PGB). Their analysis indicates that the initiation of fatigue cracking within the hub flange may be associated with a combination of factors that include:

- the accumulation of significant operational hours for each propeller reduction gearbox
- the development of pitting corrosion damage within the dowel pin bore and at the front face of the propeller flange
- progressive wear and subsequent surface damage of the hub flange at stress-critical regions surrounding the dowel pin.

Source: The Aviation Herald
André
ex Sabena #26567

User avatar
sn26567
Posts: 33633
Joined: 13 Feb 2003, 00:00
Location: Rosières/Rozieren, Belgium
Contact:

Re: 17 mar 2017: Saab 340 lost propeller in flight, pictures after landing....

Post by sn26567 » 11 Oct 2018, 23:21

ATSB releases the final report on Saab 340 in-flight loss of a propeller

An inspection of the aircraft by the ATSB at Sydney Airport identified that the propeller gearbox (PGB) propeller shaft had fractured, leading to the separation of the propeller. Subsequent laboratory analysis of the propeller shaft revealed that the failure occurred as a result of a fatigue crack that had initiated from the PGB propeller shaft flange dowel pin hole.

The ATSB found that the manufacturer’s maintenance documentation did not include specific inspection procedures to detect fatigue cracking of the propeller shaft. In addition, the operator’s inspection worksheets did not provide for the recording of inspection findings as defined within documented procedures. Consequently, this may not have provided for the best opportunity to ensure potential defects were identified, recorded and monitored.

Full article: http://aviationtribune.com/safety/atsb- ... propeller/
André
ex Sabena #26567

Post Reply