De-Orbit Checklist

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COMM MET Panel Section Panel Procedure Notes
1000 Mission Dep. Left L1 * Set RAD CONTROLLER - OUT TEMP To HIGH
* Set RAD CONTROLLER (LOOP 1 & LOOP 2) To OFF
* Set RAD CONTROLLER - BYPASS MODE (1 & 2) To MAN
* Confirm RAD FLOW BYPASS VALVE Talkbacks Display (BYP)
* Confirm The HI LOAD EVAP ENABLE Is Set To OFF
* Set FLASH EVAP CONTROLLER (PRI A & PRI B) To ON
* Set FLASH EVAP CONTROLLER - SEC To ON
Trap Cold Freon In The Bay Radiators If The Rad
Bypass Valve Talkbacks Do Not Display (BYP),
Set The Manual Rad Flow Bypass Switches 1 & 2 To Bypass.
1001 Mission Dep. Right Aft


Aft Left
Right Aft
R11L


A1U
R13L

R11L
* Confirm The MAJ FUNC Switch Is Set To GNC
* Enter SPEC 33 PRO (AFT Keypad)
* Enter ITEM 2 EXEC (AFT Keypad)
* Set KU BAND POWER To OFF
* Set KU Antenna To STOW
* When Talkback Shows STO, Set KU Antenna To GND
* Enter SPEC 22 PRO (Aft Keypad)
* Enter ITEM 9 EXEC (Aft Keypad)
* Enter ITEM 10 EXEC (Aft Keypad)
Deactivate & Stow The KU Antenna


If Rendezvous Navigation Has Been Used It Must Be Disabled.
To Disable Enter: ITEM 1 EXEC On The AFT Keypad.
1002 Mission Dep. Right Aft R13L * Set PL BAY MECH PWR (SYS 1 & SYS 2) To ON
* Set RADIATOR CONTROL (SYS A & SYS B) To STOW
* Set LATCH CONTROL (SYS A & SYS B) To LATCH
* Set LATCH CONTROL (SYS A & SYS B) To OFF
* Set RADIATOR CONTROL (SYS A & SYS B) To OFF
* Set PL BAY MECH PWR (SYS 1 & SYS 2) To OFF
Stow The Radiators
Wait Until The RADIATOR CONTROL Talkbacks Show STO
Before Setting The LATCH CONTROLS SYS 1 & SYS 2 To LATCH.
Wait Until Latch Control Talkbacks Show LAT Before
Turning Off ALL Radiators.
1003 Mission Dep. Overhead Left
Center
Right
O6
C3

R2
* Set GENERAL PURPOSE COMPUTER - MODE 5 To STBY
* Set The BFC/CRT - Display To ON
* Confirm The BFC/CRT SELECT Is Set To (3+1)
* Confirm BOILER CNTLR/HTR Switches (1/2/3) Are ON
* Set HYD CIRC PUMP Switches (1/2/3) To OFF
Activate Backup Flight System
1004 Mission Dep. Overhead Aft



Right Aft
O14
O15
O16

O15
R11L
* Set RGA 1 To ON
* Set RGA (2 & 4) To ON
* Set RGA 3 To ON
* Set ACCEL 3 To ON
* Set ACCEL 4 To ON
* Set SUPPLY H2O - Crossover Valve To OPEN
Gyro Assemblies & Accelerators
1006 Mission Dep. Right Aft R11L



R13L



R11L
* If Required, Enter OPS 202 PRO (AFT Keypad)
* Set MAJ FUNC Switch To SM
* Enter ITEM 1 EXEC (AFT Keypad)
* If Not Already Enabled, Enter ITEM 3 EXEC (AFT Keypad)
* Set PL BAY DOOR (SYS 1 & SYS 2) To ENABLE
* Set PL BAY DOOR To CLOSE
* Set PL BAY DOOR To STOP
* Set PL BAY DOOR (SYS 1 & SYS 2) To DISABLE
* Enter ITEM 2 EXEC (AFT Keypad)
Close Payload Bay Doors







Wait Until The PL BAY DOOR Talkback Shows CL.
1008 Mission Dep. Right Aft



Overhead Left
Right Aft
R11L



O6
R11L
* Set MAJ FUNC To GNC
* Press GPC/CRT (AFT Keypad)
* Enter 4 EXEC (AFT Keypad)
* Enter OPS 201 PRO (AFT Keypad)
* Set GENERAL PURPOSE COMPUTER - MODE 3 To RUN
* Enter OPS 301 PRO (AFT Keypad)
Reconfigure GNC’s For Deorbit
1009 Mission Dep. Overhead Left O6 * Set STAR TRACKER DOOR CONTROL (SYS 1 & SYS 2) to CLOSE
* Set STAR TRACKER DOOR CONTROL (SYS 1 & SYS 2) to OFF
* Set STAR TRACKER POWER (-Y & -Z) to OFF
Close Star Tracker Doors
Wait Until STAR TRACKER DOOR POSITION Talkback Shows CL.
1010 Mission Dep. Right
Overhead Aft


Center

Left










Aft Left
R4
O15
O14
O16
C3

L2


L1

L2





A12
* Check HYDRAULICS BRAKE HEATER (A/B/C) Set To AUTO
* Set BRAKES MN B To ON
* Set BRAKES MN A To ON
* Set BRAKES MN C To ON
* ORBITAL DAP / MANUAL MODE / ROTATION - ROLL To PRI
* Check ORBITAL DAP / CONTROL To AUTO
* Confirm ANTI SKID - Set To ON
* Confirm NOSE WHEEL STEERING - Set To 1
* Confirm ENTRY MODE - Set To AUTO
* Set FLASH EVAP CONTROLLER (PRI A & PRI B) To GPC
* Set FLASH EVAP CONTROLLER SEC To GPC
* FREON LOOP ISOLATION - MODE To OFF
* Set O2 SYS 2 SUPPLY To OPEN
* Set N2 SYS 2 SUPPLY To OPEN
* Set N2 SYS 2 REG INLET To OPEN
* Set O2/N2 CNTLR VLV SYS 1 To OPEN
* Set APU HEATER - GAS GEN/FUEL PUMP (1/2/3) To OFF
* Set APU HEATER - LUBE OIL LINE (1/2/3) To OFF
* Set All TANK/FUEL LINE/H2O SYS Switches To OFF
* HYDRAULIC HEATER - RUDDER SPD BRK (A &B) To OFF
* HYDRAULIC HEATER - BODY FLAP (A & B) To OFF
* HYDRAULIC HEATER - ELEVON (A & B) To OFF
* HYDRAULIC HEATER - AFT FUSELAGE (A & B) To OFF
Final Switch Configuration Check
1012 Mission Dep. Right R2 * Set He ISOLATION A LEFT/CENTER/RIGHT To OPEN
* Set He ISOLATION B LEFT/CENTER/RIGHT To OPEN
* Set PNEUMATICS L ENG He XOVR To OPEN
* Set PNEUMATICS He ISOL To OPEN
* Set LEFT He INTERCONNECT To - IN OPEN
* Set CENTER & RIGHT INTERCONNECT To - OUT OPEN
Main Propulsion System / Helium Release
1013 Mission Dep. Right Aft R11L * Confirm MAJ FUNC Set To GNC
* Enter SPEC 21 PRO (AFT Keypad)
* Enter ITEM 16 EXEC
Final IMU Alignment
1014 Mission Dep. Center
Right








Center
C2
R2








C2
* Enter ITEM 34 EXEC (Right Keypad)
* Set BOILER N2 SUPPLY (1/2/3) To ON
* Set BOILER PWR (1/2/3) To ON
* Set APU FUEL TK VLV (1/2/3) To OPEN
* Set APU CNTLR PWR (1/2/3) To ON
* Confirm APU AUTO SHUT DOWN (1/2/3) Set To INHIBIT
* Confirm HYD MAIN PUMP PRESS (1/2/3) Set To LOW
* Confirm APU SPEED SELECT Set To NORM
* Confirm APU/HYD Ready To Start Talkbacks Are GREY
* Confirm GIMBAL CK 34 On CRT 2 Is Complete
* Enter OPS 302 PRO (Right Keypad)
Perform OMS Gimbal







If there's an asterisk next to GMBL CK 34
It means the gimbal check is incomplete.
You must wait for the asterisk to Disappear.
1015 Mission Dep. Center C2 * Confirm (CRT 1, CRT 3, CRT 2) Are Set To MAJ FUNC GNC
* Enter SPEC 50 PRO (Left Keypad)
* Enter SPEC 51 PRO (Right Keypad)
* Enter ITEM 44 EXEC (Right Keypad)
Horizontal Situation & Override Displays
1016 Mission Dep. Center
Right
C2
R2
* Press RESUME (Right Keypad)
* Set APU OPERATE - START/RUN For APU 1
1017 Mission Dep. Center


Overhead Aft

Center
F7
C2


O14
O16
C3
C2
* Check CRT 1 Confirm Display Of OPS MODE 3021
* ITEM 22 EXEC (Right Keypad)
* ITEM 27 EXEC (Right Keypad)
* ITEM 23 EXEC (Right Keypad)
* Confirm L OMS ENG VLV Is ON
* Confirm R OMS ENG VLV Is ON
* Set OMS ENG (LEFT & RIGHT) To ARM/PRESS
* Press EXEC - (Right Keypad) Confirms ready for OMS burn
Perform Deorbit Burn
1018 Mission Dep. Center
Overhead Aft
C3
O14
O16
* Set OMS ENG (LEFT & RIGHT) To OFF
* Set L OMS ENG VLV To OFF
* Set R OMS ENG VLV To OFF
Deorbit Burn Complete
1020 Mission Dep. Center
Front
C2
F6
* Enter OPS 303 PRO (Right Keypad)
* Position The Shuttle To The Correct Attitude
Correct Attitude Hint
Pitch The Shuttle To 280 Deg
1022 Mission Dep. Center

Right

Overhead Aft
Right
Center
C2

R2

O17
R1
C2
* Enter ITEM 36 EXEC (Right Keypad)
* Enter ITEM 37 EXEC (Right Keypad)
* Set APU OPERATE - START/RUN For APU (2 & 3)
* Set HYD MAIN PUMP PRESS (1/2/3) To NORM
* Set ATVC - (1/2/3/4) To ON
* Set AC BUS SNSR (1/2/3) To MONITOR
* Enter ITEM 39 EXEC (Right Keypad)
Dump RCS Propellant

Pressure Shuold Rise To 3000 PSI
1023 Mission Dep. Center

Overhead Right


Center
C2

O8


C2
* Enter ITEM 38 EXEC (Right Keypad)
* Enter ITEM 40 EXEC (Right Keypad)
* Set FWD RCS - He PRESS (A & B) To CLOSE
* Set TANK ISOLATION (1/2 & 3/4/5) To CLOSE
* Set MANIFOLD ISOLATION (1/2/3/4/5) To CLOSE
* Enter OPS 304 PRO (Right Keypad)
Wait Until The cycle Completes
1024 Mission Dep. Front Left
Front Right
F6
F8
* Set Commander ATTITUDE INRTL To LVLH
* Set Pilot ATTITUDE INRTL To LVLH
1025 Mission Dep. Front Right Panel F4 * Check PITCH & ROLL/YAW Set To AUTO
1026 Mission Dep. Roll Reversals

All the checklists were Originally Created by Michael Swannick, and are available for download in PDF format in the SSM site.
Adapted for Wiki format by Marvx and spaceboy7441

deorb-checklist.txt · Last modified: 2008/11/12 09:03 by uri_ba
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