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-   -   All Zs Boeing 737-200 Grounded (https://www.pprune.org/african-aviation/299707-all-zs-boeing-737-200-grounded.html)

CALCULATOR 9th Nov 2007 16:11

All Zs Boeing 737-200 Grounded
 
Hot off the press a Emergency Airworthiness Directive has just been issued today by SA CAA- GROUNDING ALL(zs) BOEING 737-200 series aircraft fitted with Pratt and Whittney JT8D series engines.

"Owners and operators of the above mentioned aircraft types issued with a certificate of airworthiness in terms of part 21.04.4 and operating on a operating certificate issued in terms of part 121 of the RSA CAA regs of 1997, as amended are hereby advised that the GROUNDING ORDER ISSUED, which prohibits the operation of these aircraft in the RSA until an acceptable level of safety can be demonstrated , shall remain in force subject to compliance with conditions as laid down in the following paragraphs"

The Ad becomes effective on receipt and/ or 09 November 2007 ,whichever occurs earliest.:D

SEE MORE DETAIL ON THE NATIONWIDE LOOSES DONKEY POST FROM NUGPOT.

sbh684b 9th Nov 2007 16:27

The DCs's have also been afected and also been grounded

sky waiter 9th Nov 2007 16:42

WHY?

The bolts on CE did what they were supposed to- has this ever happened before, what about the airlines, specifically CE does not have the aircraft to cover the ones that are grounded where do they get the aeries from to honour the tickets etc?

And how long will it take the CAA to do the inspections??? :*:*

four engine jock 9th Nov 2007 17:10

South African CAA
 
What a bunch of JOKERS!!!
The SACAA issue a Emergency AD at 1530 today. Then they dont answer there phone.
All this to impress who? The FAA, ICAO. Dont think the way they are doing it will impress anyone. This is a way to show the BIGG BOYS that our CAA does something. Its just that they always screw things up.
The investigation into the Nationwide Incident could not have been finished so fast.
This will just show the rest of the world just how BAD our CAA is.

nugpot 9th Nov 2007 17:23


has this ever happened before

06 Nov 2007 Nationwide B737-200 Cape Town, South Africa
It was reported that the right engine of a B737-200 aircraft fell off during the take-off. The Nationwide flight was en-route to Johannesburg. The aircraft made a safe airborne return to Cape Town and there have been no reported injuries.

07 Jan 2002 Delta B737-200 Dallas Fort Worth, Texas USA



Right engine separated from the aircraft while climbing through 200 feet after take-off. Following the engine separation the aircraft continued to climb and was vectored by ATC for an uneventful single engine approach and landing at the departure airport. The engine separation was a result of the failure of the aft cone bolt and the engine secondary support assembly. The aft cone bolt failed as a result of a pre-existing fatigue crack, while the engine secondary support assembly failed as a result of the dynamic loads that exceeded the designed capacity of the mounting bolts. The two forward bolts failed in overload as the engine swung forward during the separation sequence. Metallurgical tests revealed that the fatigue of the aft cone bolt was a result of the lubricant inadvertently introduced into the conical surface of the cone bolt.

20 Jan 1989 Piedmont B737-200 Chicago, Illinois, USA



Right engine separated from the aircraft on rotation. Take-off was continued and the aircraft made a safe return to the departure airport. After landing the aircraft was inspected and it was revealed that the aft cone (engine mounting) bolt had failed from fatigue, causing the two forward cone bolts to fail due ductile overstress. Raised mechanical deformation was found on the conical surface of the aft bolt. The deformity was indicative of damage produced prior to, or during assembly of the cone bolt in the isolation mount. A matching cavity was noted on the isolation mount. There was evidence that the mechanical irregularity resulted in a non-uniform fit which allowed the torqued fitting to loosen.

05 Dec 1987 US Air B737-200 Deptford, New Jersey, USA



After take-off while climbing through 4000 feet, the aircraft yawed and rolled to the right, simultaneously a continuous airframe buffet began. Soon after the right engine separated from the aircraft and the buffet stopped. A passenger saw the aft end of the engine droop about 30 degrees before the engine separated. The aircraft landed safely. An examination revealed the aft mount cone bolt had failed from fatigue. Subsequently the forward mount cone bolts and secondary support cable failed from overload.


03 Jan 1986 Southwest B737-200 Dallas, Texas, USA



No.2 engine experienced an aft engine mount cone bolt failure with the subsequent failure of the secondary support link. The failure of both aft engine support assemblies during the take-off allowed the aft section of the engine to droop down. As a result the No.2 thrust reverser actuator assembly contacted the runway surface on rotation. The aircraft subsequently returned to the departure airport without further incident. Metallurgical examination of the cone bolt revealed that it had failed as a result of fatigue. Most probably due to incorrect installation of the bolt, specifically that it was under torqued on installation.

nugpot 9th Nov 2007 17:44

I don't know how common x-ray equipment is in the RSA, because the AD calls for:


I. Check the complete engine mount and support brackets using an xray method of inspection.

406pilot 9th Nov 2007 20:58

hi, guys

cant help noticing tht most of the separations have to do with the right engine or as appropriately called no:2 engine, is this a co-incidence or is the problem only on the right hand side engine mounts/cones?

keep it up there fellows,

no more 406pilot

gofor 10th Nov 2007 01:54

Seem to remember a Kalitta's 747-200 no 2 eng fell off in the states two or three years ago. Don't remember if the rest of the fleet was grounded then

Q4NVS 10th Nov 2007 05:52

How many of these 737-200 with JT8D's do Comair still operate?

Guess the guys at 1Time and Mango are gonna be very busy for a few days (or weeks...)

TwinJock 10th Nov 2007 05:58

Knee jerk reaction by a useless state entity - CAA!! Hooray, somebody is awake in the sleeping giant!

What you should however try and do is to get some information from these idiots regarding license renewals when flying outside SA. What is the official standpoint from SACAA regarding these renewals? Nothing, not a chirp, no reply - that is the way that SACAA ensures that problems go away - ignore it.

The flying public must be shown by grounding all B732's, that the SACAA has some muscle and that it is not just a job creator for PDI's (Previous Disadvantaged Individuals).

ALPHA FLOOR 10th Nov 2007 06:24

Well done SACAA!

At last some action, be it the right action or not, its nice that you are doing something!

Good time to be in the NTD business....

Someone stated in a post here "The bolts on CE did what they were supposed to" but the pictures posted on another forum clealy show the bolt intact and the mounting broken!

Lets see - Good job to all the crew involved - Vern screw you!

AFL

sky waiter 10th Nov 2007 06:55

Thanx for the reply nugs what i meant to say was in SA, i know it has happened before.

Who is now going to honour the tickets of the stranded PAX- the lost revnue due to the aircrafts not having replacements etc etc.

NOT a clever move, surely this type of directive should have come from boeing if there was a problem?

Oom Kaspaas 10th Nov 2007 07:07

Nationwide never missed a beat yesterday. Heard them on the radio after 8pm last night.

Before someone passes out with rage. I DO hope Nationwide continues in business, otherwise there are people without employment again.

grgplanes 10th Nov 2007 07:53

Can anyone give some indication how many aircraft of which airlines is affected? Nationwide, Comair, Kulula, 1Time, InterAir, Interlink, SAACargo, other? How long would this last.
It seems like Nationwide has some delays today.

777Contrail 10th Nov 2007 08:08

Nationwide probably received an extention to do the inspections.......:}

Must first get x-ray equipment, and so on and so forth:rolleyes:

Petrovsky 10th Nov 2007 10:06

Presumably the emergency AD allows the aircraft to return to flight status after the inspection has been completed satisfactorily. Just think of the legal repercussions if the CAA did not ground the fleet pending the inspection, and a further (same) problem occurred again....

dudleydick 10th Nov 2007 13:16

Now ACSA has got into the act!!!! A news item from News24 today:

Johannesburg - Airports Company SA (Acsa) has grounded Boeing 737 200's throughout South African airports to conduct safety checks, SABC news reported on Saturday.
This action comes after a Nationwide Boeing 737 carrying 106 passengers had to make an emergency landing at Cape Town International on Wednesday after an engine fell off during take-off.
Acsa airport operations director Bongani Maseko told SABC news that the company had received instructions to ground the planes from the Civil Aviation Authority.
"All boeings must go for a check for the mounting of the engines. [The Civil Aviation Authority] have asked that by the end of business today we start helping them to ensure that all of the Nationwide aircrafts adhere to that. "The directive also says all the other airlines must have implemented the check for the mounting of the engines by Monday."

gofor 10th Nov 2007 13:52

Looks like it was no1 eng on Kalitta - quite a bit of damage that time!
http://www.cargolaw.com/images/disas...tri-motor2.GIF

DreamMachine 10th Nov 2007 15:23

What about 727's and -500's
 
Oom Kaspaas, don't forget that Nationwide has 727's and 737-500's as well !!!
Those crews would have been called out , and told to fly until they drop !!

PAXboy 10th Nov 2007 15:26

'ACSA in on the act' certainly did!!! I like the way they make it sound as if they are doing lots and lots to help, rather than following instructions from a higher authority. Somebody just made their job a bit safer. This is no personal criticism. After all, the way the Brits taught you how to wriggle out of things. :{


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