Door Warning Light System

Apply sticker adjacent to affected door warning light(s).

Print the following information in the journey log sheet. ______DOOR WARNING LIGHT INOP - VERIFY CLOSED AND LATCHED/LOCKED PRIOR TO FLIGHT

52-03-05-01 MCD Control and Indicating Panel Red DOOR UNSAFE Indicator Light 1. With Aircraft Ground Power Bus active: 2. Verify Main Cargo Door is in the fully closed, latched, and locked position. 3. Verify MCD POWER switch on the MCD Control and Indicating panel is in the OFF position and the switch guard down. 4. Press and hold LAMP TEST switch on the MCD Control and Indicating panel and verify for the following indicator lights: a) MCD NOT CLOSED FWD and AFT lights are illuminated a) LATCHES UNLATCHED 1 thru 8 lights are illuminated b) LOCK PINS NOT ENGAGED 1 thru 8 lights are illuminated c) VENT DOOR OPEN light is illuminated d) DOOR SAFE green light is illuminated 5. Release LAMP TEST switch. Verify for the following indicator lights on the MCD Control and Indicating panel: a) MCD NOT CLOSED FWD and AFT lights are extinguished b) LATCHES UNLATCHED 1 thru 8 lights are extinguished c) LOCK PINS NOT ENGAGED 1 thru 8 lights are extinguished d) VENT DOOR OPEN light is extinguished e) DOOR SAFE green light is illuminated 6. Verify CARGO DOOR ARMED and the CARGO DOOR warning lights in the flight deck are extinguished. 7. Press-to-test CARGO DOOR ARMED and the two CARGO DOOR warning lights in the flight deck. 8. Prior to closing the L1 entry door, Visually verify the MCD is flush with the fuselage to ensure MCD is properly closed. Verify all lockpins are in the LOCKED position. During low light conditions, a flashlight can be utilized for the visual verification. 52-03-05-02 MCD Control and Indicating Panel Green DOOR SAFE Indicator Light 1. With Aircraft Ground Power Bus active: 2. Verify Main Cargo Door is in the fully closed, latched, and locked position. 3. Verify MCD POWER switch on the MCD Control and Indicating panel is in the OFF position and the switch guard down. 4. Press and hold LAMP TEST switch on the MCD Control and Indicating panel and verify for the following indicator lights: a) MCD NOT CLOSED FWD and AFT lights are illuminated b) LATCHES UNLATCHED 1 thru 8 lights are illuminated c) LOCK PINS NOT ENGAGED 1 thru 8 lights are illuminated d) VENT DOOR OPEN light is illuminated e) DOOR UNSAFE light is illuminated 5. Release the LAMP TEST switch. Verify for the following Indicator Lights on the MCD Control and Indicating panel: a) MCD NOT CLOSED FWD and AFT lights are extinguished b) LATCHES UNLATCHED 1 thru 8 lights are extinguished c) LOCK PINS NOT ENGAGED 1 thru 8 lights are extinguished d) VENT DOOR OPEN light is extinguished e) DOOR UNSAFE light is extinguished 6. Verify CARGO DOOR ARMED and the CARGO DOOR warning lights in the flight deck are extinguished. 7. Press-to-test CARGO DOOR ARMED and the two CARGO DOOR warning lights in the flight deck. 8. Prior to closing the L1 entry door, visually verify the MCD is flush with the fuselage to ensure MCD is properly closed. Verify all lockpins are in the LOCKED position. During low light conditions, a flashlight can be utilized for the visual verification. 52-03-05-03 MCD Control and Indicating Panel Amber Indicator Lights 1. With Aircraft Ground Power Bus active: 2. Verify Main Cargo Door is in the fully closed, latched, and locked position. 3. Verify MCD POWER switch on the MCD Control and Indicating panel is in the OFF position and the switch guard down. 4. Press and hold LAMP TEST switch on the MCD Control and Indicating panel and verify the following indicator lights: a) DOOR UNSAFE red light is illuminated b) DOOR SAFE green light is illuminated 5. Release LAMP TEST switch. Verify Indicator lights on the MCD Control and Indicating panel: a) DOOR UNSAFE red light is extinguished b) DOOR SAFE green light is illuminated 6. Verify CARGO DOOR ARMED and the CARGO DOOR warning lights in the flight deck are extinguished. 7. Press-to-test CARGO DOOR ARMED and the two CARGO DOOR warning lights in the flight deck. 8. Prior to closing the L1 entry door, visually verify the MCD is flush with the fuselage to ensure MCD is properly closed. Verify all lockpins are in the LOCKED position. During low light conditions, a flashlight can be utilized for the visual verification. 52-03-05-04 Flight Deck Amber DOOR ARMED Indicator Light 1. With Aircraft Ground Power Bus active: 2. Verify Main Cargo Door is in the fully closed, latched, and locked position. 3. Verify MCD POWER switch on the MCD Control and Indicating panel is in the OFF position and the switch guard down. 4. Press and hold LAMP TEST switch on the MCD Control and Indicating panel and verify that all indicator lights are illuminated. Release LAMP TEST switch. 5. Verify Indicator lights on the MCD Control and Indicating panel a) MCD NOT CLOSED FWD and AFT lights are extinguished b) LATCHES UNLATCHED 1 thru 8 lights are extinguished c) LOCK PINS NOT ENGAGED 1 thru 8 lights are extinguished d) VENT DOOR OPEN light is extinguished e) DOOR UNSAFE red light is extinguished f) DOOR SAFE green light is illuminated 6. Verify CARGO DOOR ARMED and the CARGO DOOR warning lights in the flight deck are extinguished. 7. Press-to-test the two CARGO DOOR warning lights in the flight deck. 8. Prior to closing the L1 entry door, visually verify the MCD is flush with the fuselage to ensure MCD is properly closed. Verify all lockpins are in the LOCKED position. During low light conditions, a flashlight can be utilized for the visual verification. 52-03-05-05 Flight Deck Red “CARGO DOOR” Warning Lights 1. With Aircraft Ground Power Bus active: 2. Verify Main Cargo Door is in the fully closed, latched, and locked position. 3. Verify MCD POWER switch on the MCD Control and Indicating panel is in the OFF position and the switch guard down. 4. Press and hold LAMP TEST switch on the MCD Control and Indicating panel and verify that all indicator lights are illuminated. Release LAMP TEST switch. 5. Verify Indicator lights on the MCD Control and Indicating panel a) MCD NOT CLOSED FWD and AFT lights are extinguished b) LATCHES UNLATCHED 1 thru 8 lights are extinguished c) LOCK PINS NOT ENGAGED 1 thru 8 lights are extinguished d) VENT DOOR OPEN light is extinguished e) DOOR UNSAFE light is extinguished f) DOOR SAFE green light is illuminated 6. Prior to closing the L1 entry door, visually verify the MCD is flush with the fuselage to ensure MCD is properly closed. Verify all lockpins are in the LOCKED position. During low light conditions, a flashlight can be utilized for the visual verification.

None required.

52-03-01 Entry/Service/Cargo/Equipment/Airstair Visually inspect the affected door(s) to ensure that door is closed and locked (AMM 52-00-00/901). NOTE: If desired, deactivate the faulty door indication(s). 1. To deactivate a faulty forward or aft cargo door indication switch, do these steps (AMM 52-00-00/901): a) Disconnect ground wire from the forward cargo door indication switch (AMM 52-71-31-000- 801) or aft cargo door indication switch (AMM 52-71-31-000-802). Secure disconnected wire. b) Visually inspect the affected door(s) to ensure that door is closed and locked. c) Confirm that the affected (FWD or AFT) CARGO door warning and MASTER CAUTION lights are on after the affected door is closed and locked. d) Press and release MASTER CAUTION light to reset. 2. To deactivate a faulty forward entry door indication, do these steps: a) Remove wire W2216-0002-24 or W2216-0012-24 at the connector D1406 pin 8 on P5-20 per WDM 52-71-11. Cap and stow the disconnected wire. b) Confirm that the FWD ENTRY door light remains off while the door is open. c) Confirm that the forward entry door is closed and latched. 3. To deactivate a faulty aft entry door indication, do these steps: a) Remove wire W2216-0003-24 at the connector D1406 pin 5 on P5-20 per WDM 52-71-11. Cap and stow the disconnected wire. b) Confirm that the AFT ENTRY door light remains off while the door is open. c) Confirm that the aft entry door is closed and latched. 4. To deactivate a faulty forward service door indication, do these steps: a) Remove wire W2216-0004-24 at the connector D1406 pin 2 on P5-20 per WDM 52-71-11. Cap and stow the disconnected wire. b) Confirm that the FWD SERVICE door light remains off while the door is open. c) Confirm that the forward service door is closed and latched. 5. To deactivate a faulty aft service door indication, do these steps: a) Remove wire W2216-0005-24 at the connector D1406 pin 3 on P5-20 per WDM 52-71-11. Cap and stow the disconnected wire. b) Confirm that the AFT SERVICE door light remains off while the door is open. c) Confirm that the aft service door is closed and latched. 6. To deactivate a faulty electronic equipment access door or forward access door indication, do these steps: NOTE: The forward access door and the electronic equipment door share the same door warning light. a) Remove wire W2216-0008-24 at the connector D1406 pin 6 on P5-20 per WDM 52-71-12. Cap and stow the disconnected wire. b) Confirm that the EQUIP door light remains off while the door is open. c) Confirm that the electronic equipment door is closed and latched, and forward access door is closed and locked. 52-03-01A Main Deck Cargo Door 1. Accomplish external visual inspection of main cargo door: a) Verify main cargo door is closed and flush with the fuselage. b) Verify vent door is closed and flush with cargo door. c) Verify through the eight (8) lock pin view ports that the lock pin has travelled thru the latch lever and the green band on the lock pin is visible, 8 places. 2. Open and collar MCD CONTROL circuit breaker on P6-1 panel 3. Open and collar MCD INDICATORS circuit breaker on P6-1 panel 4. To deactivate MCD Takeoff Warning, remove wire AE-M018B20 at the connector D-AE010P pin 12 on MCD Control and Indicating Panel per WDM R-1005 52-72-11. Cap and stow the disconnected wire. 5. To deactivate Captain’s CARGO DOOR Indicator light, remove wire AE-M010C20 at the connector D-AE009P pin 4 on MCD Control and Indicating Panel per WDM R-1005 52-72-11. Cap and stow the disconnected wire. 6. To deactivate First Officer’s CARGO DOOR Indicator light, remove wire AE-M016C20 at the connector D-AE009P pin 5 on MCD Control and Indicating Panel per WDM R-1005 52-72-11. Cap and stow the disconnected wire. 52-03-02 Overwing Verify affected door is closed and latched, and the associated flight lock operates normally (AMM 52-00-00/901). 1. Verify that affected exit is closed and latched. a) Exit exterior flush with fuselage skin. b) Vent panel(s) closed and faired. c) Exit liner faired with cabin interior. d) Inside handle(s) rotated to the latched position. e) Handle covers installed. 2. Check PSEU BITE to verify that the associated flight lock is operating normally. NOTE: If flight lock failed open faults are present, dispatch is permitted under MEL Item 52-15. 52-03-05-04 Flight Deck Amber DOOR ARMED Indicating Light Open and collar MCD CONTROL circuit breaker on P6-1 panel. NOTE: This step removes power to the MCD selector valve, the MCD electric hydraulic pump, and amber MCD ARMED flight deck light. 52-03-05-05 Flight Deck Red “CARGO DOOR” Warning Lights 1. External visual inspection of main cargo door: a) Verify main cargo door is closed and flush with the fuselage. b) Verify vent door is closed and flush with cargo door. c) Verify through the eight (8) lock pin view ports that the lock pin has travelled through the latch lever and the green band on the lock pin is visible, 8 places. 2. Open and collar MCD CONTROL circuit breaker on P6-1 panel. NOTE: This step removes power to the MCD selector valve, the MCD electric hydraulic pump, and amber MCD ARMED flight deck light. 3. Open MCD INDICATORS circuit breaker on P6-1 and deactivate the following lights: a) MCD Takeoff Warning Light: Remove wire AE-M018B20 at the connector D-AE010P pin 12 on MCD Control and Indicating Panel per WDM R-1005 52-72-11. Cap and stow the disconnected wire. b) Captain’s CARGO DOOR Indicator light: Remove wire AE-M010C20 at the connector D-AE009P pin 4 on MCD Control and Indicating Panel per WDM R-1005 52-72-11. Cap and stow the disconnected wire. c) Deactivate First Officer’s CARGO DOOR Indicator light, remove wire AE-M016C20 at the connector D-AE009P pin 5 on MCD Control and Indicating Panel per WDM R-1005 52-72-11. Cap and stow the disconnected wire. 4. Close MCD INDICATORS circuit breaker on P6-1.

______DOOR WARNING LIGHT INOP - VERIFY CLOSED AND LATCHED/LOCKED PRIOR TO FLIGHT