1011Fan wrote:F/E Bradley Curtis was widely reported as dyslectic. An instructor flight engineer observing Curtis during simulator training confirmed he had difficulty with scanning, sequencing and tardiness.
On touchdown the forward and aft outflow valves should automatically fully open to equalize cabin pressure to the Riyadh 2082’ field elevation. Both valves were found closed. Eyewitnesses saw smoke trailing from the aircraft while in flight but stopping when the aircraft touched down. One witness stationed directly across from the landing zone reported observing smoke trailing from the “little window” under the rear of the aircraft and as the aircraft touched down the smoke from this “window” stopped. Other exhaust valves which would normally open on touchdown the Forward Electrical Service Center, Mid Electrical Service Center, and Galley Venting/Exhaust valves were also found closed.
From Page 20 of the PCA Report
The controllable exhaust and outflow valves and their positions were found as:
Forward electrical service center - Closed
Mid electrical service center - Closed
Galley venting - Closed
C-3 cargo venting - Closed
Forward out-flow valve - Closed
Aft outflow valve - Slightly Open
The cabin pressure control panel was recovered. Some of the Indicator positions were found as follows:
Altitude Set: 26,000 flt / 2000 ft. cabin alt.
Baro Set: 29.9 in Hg / 1012 mb
Mode Set: Standby
Manual Select: Manual
The L-1011 pressurization system has three operational modes: NORMAL, STANDBY, and MANUAL. MANUAL permits the flight engineer to use toggle switches, one for each valve, to manually position each outflow valve to open to close and any position in-between. The STANDBY system is similar to NORMAL except it bypasses the aircraft ground sense relays so both outflow valves would not automatically go full open on touchdown. Only when operated in the NORMAL mode will both valves automatically go full open on touchdown.
From Page 109 of the PCA Report – CVR Transcript
CAM-2 Six point eight the QNH
CAM-2 One Zero Zero Six Decimal Eight
CAM-1 Okay Zero Six Decimal Eight
At 18:26 First Officer Hassani reports QNH. HZ-AHK at 1300’ AGL RUH; ten minutes to touchdown. Flight Engineer Curtis does not respond to CAM-2 by adjusting the Baro Correction Knob to the new setting which indicates the pressurization system in STANDBY mode.
The fate of the passengers and crew aboard SV 163 is now SEALED!
More later .....
fr8mech wrote:You know why I watch Netflix or why I watch a series on other services after the season has ended, rather than watching on broadcast TV?
Because I like to watch The whole season drop at once, not piece-meal.
Please get to the point, or don’t. It doesn’t matter anymore. You’ve lost my interest...like a bad pilot in TV.
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