Technical data

13773-001
71-10
Page 1
COWLING
1. DESCRIPTION
The engine cowling, fabricated from fiberglass and epoxy, consists of one upper and two lower halves. A
urethane close-out seal is secured to the lower cowl halves to fully surround the nose gear strut. The cowl-
ing is secured to the fuselage with quarter-turn fasteners and screws. The oil inspection door is located on
the upper cowling and external power receptacle door is located on the lower cowling. The landing light
assembly is integral to the RH lower cowl. For maintenance practices pertinent to the landing light, refer to
Chapter 33, Lights. (Refer to 33-40)
2. MAINTENANCE PRACTICES
A. Engine Cowling (See Figure 71-101)
CAUTION: Two people are required when removing or installing engine cowling to avoid damaging
the cowling due to bending or flexing. Apply masking tape around perimeter of spinner
to avoid scratching spinner.
(1) Removal - Engine Cowling
(a) Release quarter-turn fasteners and screws securing upper cowl to lower cowls and fuse-
lage. Remove upper cowl from airplane.
(b) Disconnect landing light connector on RH lower cowling half.
(c) Remove screws securing close out seal to bottom of lower cowl and remove close out seal
from airplane.
WARNING:
Ensure engine magnetos are grounded (OFF) prior to rotating propel-
ler.
(d) Rotate propeller so one blade is vertical.
(e) Remove quarter-turn fasteners securing RH lower cowl to fuselage and remove from air-
plane.
(f) Remove quarter-turn fasteners and screw securing LH lower cowl to fuselage and drain
manifold. Remove cowl from airplane.
(2) Installation - Engine Cowling
WARNING:
Ensure engine magnetos are grounded (OFF) prior to rotating propeller.
(a) Rotate propeller so one blade is vertical.
(b) Position lower RH cowl around engine compartment and install quarter-turn fasteners.
(c) Position lower LH cowl around engine compartment and install quarter-turn fasteners and
screw.
(d) Connect landing light connector on RH lower cowling half.
Note: To facilitate cowling installation, place thumb on cowl directly above quarter-
turn fastener, lightly apply thumb pressure to reduce space between fas-
tener and receptacle, turn and seat fastener.
(e) Place upper cowl in place and fasten to lower cowl and fuselage with quarter-turn fasten-
ers and screws.
(f) Position close out seal around nose gear strut and secure with screws.
30 Nov 2000