Re: 737 musings

From: (TriStar500)
Organization: America Online, Inc. (1-800-827-6364)
Date:         14 Oct 94 02:23:34 
References:   1
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In article <airliners.1994.1609@ohare.Chicago.COM>, kls@ohare.Chicago.COM
(Karl Swartz) writes:

> I believe the USAir incident was blamed in part on a missing or
>incorrectly installed retaining cable.

I believe this cable was added to the design after the aft cone bolt was
found to be a weak spot. There is an AD on the 737-200 that requires a
check of the aft cone-bolt about every 25 hours.  This cable also broke in
the SW 737 incident in DAL a few years ago. The engine remained on the
airplane suspended by the two forward cone bolts.

>Finally, several instances of 727s losing #1 or #3 come to mind -- AA
>from DFW to SAN near the AZ/NM border and NW over northern Florida.
>In both cases, the foreign object damage (FOD) to the engine caused
>the separation 

As I recall, these were both number 3 engines and were caused by blue ice
from the forward lav service panel.