Technical data

13773-001
21-20
Page 330 Nov 2000
B. Air Ducts
(1) Removal - Plenum Box Air Ducts
(a) Remove MFD. (Refer to 34-40)
(b) Remove the appropriate kick panel. (Refer to 25-10)
(c) Remove the cable ties securing the appropriate air duct.
(d) Remove the air duct.
(2) Installation - Plenum Box Air Ducts
CAUTION: Ensure air duct routing doesn’t interfere with other components.
(a) Acquire necessary tools, equipment, and supplies.
(b) Install air duct into position.
(c) Secure the air duct with cable ties.
(d) Visually inspect air ducts to assure no interference with flight controls, brackets or any
other linkage.
(e) Secure the kick plate. (Refer to 25-10)
(f) Install the MFD. (Refer to 34-40)
(3) Removal - Side Panel Air Ducts
(a) Remove side duct cover. (Refer to 25-10)
(b) Remove sidewall air duct.
(c) Remove cable ties and disconnect air duct from each end. Remove air duct.
(4) Installation - Side Panel Air Ducts
(a) Install air duct and secure at both ends.
(b) Place sidewall air duct into position and secure.
(c) Install side duct cover. (Refer to 25-10)
(5) Removal - Kick Plate Air Duct
(a) Remove kick plate to gain access to back side of air duct. (Refer to 25-10)
(b) Remove clamp and duct from air duct.
(c) Remove air duct from kick plate by unscrewing the inner air duct from the outer air hous-
ing.
(6) Installation - Kick Plate Air Duct
(a) Mount air duct assembly to kick plate by screwing the inner duct into the outer duct hous-
ing.
(b) Secure air duct hose to air duct with clamp.
(c) Secure kick plate. (Refer to 25-10)
(7) Removal - Passenger Heat Duct
(a) Remove side duct cover. (Refer to 25-10)
(b) Remove armrest interior trim panel. (Refer to 25-10)
(c) Remove MFD. (Refer to 34-40)
(d) Remove cable ties and disconnect air duct from each end.
(e) Remove air duct.
Description P/N or Spec. Supplier Purpose
Cable Ties 8 inch Any Source Retain air duct