[net.aviation] China Airlines 747 decent

kfr@hou5f.UUCP (Kevin Redden) (03/05/85)

RE: China Airlines 747 uncontrolled decent from 41,000 to 9500 ft.

Aviation week (3/4/85) reports that the NTSB has confirmed the crews
claim that they did NOT deliberately lower the gear during the
decent. NTSB concluded the main body landing gear uplock assembly
shifted foward, allowing both main body gear to deploy under the 
high G loading during decent & recovery. Later, the wing gear had to 
be lowered manually for landing.

Other items reported:

	. the aircraft reached a roll to the right of 162 degrees,
	  and a 62 deg nose down attitude.

	. the auto pilot remained engaged during the initial
	  phase of the decent.

	. one engine was lost just before the decent began.

	. the pilot stated he saw airspeed indications during
	  the decent between 80 Kts and 400 Kts IAS.

	.  the maximum G load during the decent was 4.5 G.

Kevin Redden
AT&T-IS  Holmdel