Cessna 177 SERIES Service Manual

16-50.
TROUBLE SHOOTING
(Cont).
TROUBLE
PROBABLE
CAUSE
REMEDY
FLASHING
BEACON
DOES
Defective
wiring.
2. Test
circuit
until
short is
lo-
NOT LIGHT
(Cont).
cated.
Repair
or replace
wiring.
Lamp burned
out.
3. Test
lamp
with ohmmeter
or
a new
lamp.
Replace
lamp.
If
lamp
is good,
proceed
to
step
4.
Open circuit
in wiring.
4.
Test circuit from
lamp to
flasher
for continuity.
If no
continuity
is
present,
repair
or
replace
wiring.
If
continuity
is
present, proceed
to step
5.
Defective switch.
5. Check
voltage at
flasher with
master
and beacon
switch on.
Should read
battery voltage.
Replace
switch. If voltage
is
present,
proceed
to step 6.
Defective
flasher.
6. Install
new flasher.
FLASHING
BEACON
Defective flasher.
1. Install new
flasher.
CONSTANTLY
LIT.
1. Inspect circuit
breaker.
If
ALL
NAV LIGHTS
OUT.
Short circuit
in
wiring.
circuit
breaker
is open,
proceed
to step
2. If
circuit
breaker
is
OK, proceed
to step
3.
Defective
wiring. 2.
Isolate and test each nav light
circuit
until short
is located.
Repair
or replace
wiring.
Defective
switch.
3. Check voltage at nav light
with
master
and nav light
switches on.
Should
read
battery
voltage.
Re-
place switch.
ONE NAV LIGHT OUT.
Lamp burned
out.
1. Inspect lamp.
Replace lamp.
Open circuit in wiring. 2. Test wiring for continuity.
Repair
or replace
wiring.
ONE ANTI-COLLISION Flash tube burned out. Test with new flash tube. Replace
STROBE LIGHT
WILL
flash tube.
NOT LIGHT. THRU
1972 MODELS.
Faulty
wiring.
Test
for continuity.
Repair
or
replace.
Faulty
trigger head.
Test with
new trigger
head.
Replace
trigger
head.
BOTH
ANTI-COLLISION
Circuit
breaker
open.
Inspect.
Reset.
STROBE
LIGHTS
WILL
NOT
LIGHT.
THRU
1972
MODELS.
Change
3
16-15

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)