Engine falls from sky in Tehran

[Eclectic]

https://pbs.twimg.com/media/CRWNuDaXAAAdSbS.png
https://pbs.twimg.com/media/CRWJbVIUkAQ73D8.jpg

Also 747 makes emergency landing missing one engine:

Passenger plane makes emergency landing in Tehran - air365 - Aviation Incidents (http://www.air365app.com/passenger-plane-makes-emergency-landing-in-tehran/?utm_source=dlvr.it&utm_medium=twitter)

and

http://ht.ly/35yv1B

This is better: http://www.airlive.net/2015/10/breaking-engine-of-passenger-plane-fell.html

More than 300 passengers, emergency landing in Tehran's MehrAbad Airport. Engine fell in the suburb of the city.

Flying from Tehran to BandarAbbas, all passengers are safe & sound.

[ajamieson]

Hmm. Flight was due to be operated by an Airbus A306 or A310, per the airline's website, and the various pictures being shared online don't seem to match up with B743.

https://twitter.com/BahmanKalbasi/status/654580425512370176

https://twitter.com/esggamin/status/654586353376710656

https://twitter.com/esggamin/status/654570900713525248

Any other input here?

[Eclectic]

The aircraft:
https://pbs.twimg.com/media/CRWQROtWoAAVo_T.jpg

https://pbs.twimg.com/media/CRWQRd5WcAAY4iY.jpg

And it's on ASN now: http://aviation-safety.net/wikibase/wiki.php?id=180400

Date: 15-OCT-2015
Time: ca 07:30
Boeing 747-3B3
Owner/operator: Mahan Air
Registration: EP-MNE
C/n / msn: 23480/641
Fatalities: Fatalities: 0 / Occupants:
Other fatalities: 0
Airplane damage: Minor
Location: near Tehran-Mehrabad Airport (THR/OIII) - Iran
Phase: Initial climb
Nature: Domestic Scheduled Passenger
Departure airport: Tehran-Mehrabad Airport (THR/OIII)
Destination airport: Bandar Abba

[wanabee777]

Airplane damage: MinorYou gotta be kidding me!:)

Sure, just straighten some bent aluminum and return to service.

[megan]

You gotta be kidding meAn aircraft demolished into a million pieces the FAA classifies the damage as "substantial", so yes, "minor".

[barit1]

Were I to venture a guess, this was a CF6 with a departed LPT rotor disc. It functions very well as a rotary saw, as evidenced in the vertical slice up into the pylon.

Scrap metal dealers along the flight path will show a profit this month. :)

[procede]

You gotta be kidding me!:)

Sure, just straighten some bent aluminum and return to service.

Damage to engines is usually not included into the classification. Slap on a new engine and this plane looks good to go...

[Airone2977]

Sounds like metal fatigue
These birds are so old, ain't that surprised !!

[MarkerInbound]

You gotta be kidding me!


The NTSB in 49 CFR 830.2 defines substantial damage and specifically says engine failure or damage limited to one engine is not substantial. It looks like the engine disassembled itself and tried to leave out the back end. Not an uncontained failure. There is one interesting tear/cut in the bottom of the pylon in the top aircraft photo.

[wanabee777]

These birds are so old, ain't that surprised !!

Must agree with you there.

[tdracer]

Were I to venture a guess, this was a CF6 with a departed LPT rotor disc. It functions very well as a rotary saw, as evidenced in the vertical slice up into the pylon.

I was thinking the same thing - the CF6-50 is becoming somewhat notorious for loosing turbine discs.
I've been at a couple CF6 operator conferences where GE hammered on the need to do the inspections, etc. to prevent turbine disc failures. The problem is the operators that are bursting turbine discs are not the ones that bother to go to operator conferences (or apparently pay much attention to the associated ADs :=).

[Eclectic]

Surely the problem in Iran is the trade embargo.
They can't get the bits. Or buy newer aircraft.
They have developed an amazing make do and mend culture that kept the F-14s in the air. But that has obvious limits.

[grounded27]

Surely the problem in Iran is the trade embargo.
They can't get the bits. Or buy newer aircraft.
They have developed an amazing make do and mend culture that kept the F-14s in the air. But that has obvious limits.

GE would have specific time specific operating limitations for that engine. Wonder if they were in compliance?

[readywhenreaching]

damage: not quite near minor..

http://www.jacdec.de/WP/wp-content/uploads/2015/10/2015-10-15_EP-MNE_B743_Mahan@THR_area_ACC3.png
source: aerospacetalk.ir via jacdec (http://www.jacdec.de/2015/10/15/2015-10-15-mahan-air-boeing-747-300-engine-falls-apart-near-tehran/)

[barit1]

GE would have specific time specific operating limitations for that engine.

Absolutely; all engine mfgrs. publish life cycle limits for rotary parts and other highly stressed parts like pressure vessels. Required by FAA, CAA, etc.

[OldLurker]

The problem is the operators that are bursting turbine discs are not the ones that bother to go to operator conferences (or apparently pay much attention to the associated ADs) Of course, no such operators ever fly (even cargo) into certain airports where the routine approach is directly over the city centre. An engine could never depart from an aircraft over a major Western city. Inconceivable.

[jvr]

you tell the people of the Bijlmer, amsterdam
remember El Al

[Rwy in Sight]

you tell the people of the Bijlmer, amsterdam
remember El Al

I think OldLurker is ironic on his statement.