(l)  
Make sure that the warnings go off.

 (m)  
Make a 0.4 mach (Ps of 20.58 In. Hg. and Pt of 22.97 In. Hg).

 (n)  
Make sure that no warning occurs.

 (o)  
Slowly decrease the radio altitude to 700 feet.

 (p)  
Make sure that the PULL UP indicators and aural warning consists of TOO LOW TERRAIN comes on.

 (q)  
Increase the radio altitude to 1100 feet.

 (r)  
Make sure that the warnings go off.

 (s)  
Make an 0.6 mach (Ps of 20.58 In. Hg. and Pt of 26.25 In. Hg).

 (t)  
Make sure no warnings occur.

 (u)  
Slowly decrease the radio altitude to 900 feet.

 (v)  
Make sure that the PULL UP indicators and aural warning consists of TOO LOW TERRAIN comes on.

 (w)  
Increase the radio altitude to 1100 feet.

 (x)  
Make sure that the warnings go off.

 (y)  
Make an 0.2 mach (Ps of 20.58 In. Hg. and Pt of 21.16 In. Hg).

 (z)
Make sure that no warnings occur. (aa) Slowly decrease radio altitude to 180 feet at a rate not larger than 1000 feet per minute. (ab) Make sure that the PULL UP indicators and aural warning consists of TOO LOW FLAPS come on.

 (ac) Set the FLAP/GEAR INHIBIT switch on first officer's instrument panel to the INHIBIT position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SUNDSTRAND MK II GPWC ú

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737-300/400/500MAINTENANCE MANUAL
 (ad) Make sure that the warnings go off.
 (ae) Increase the radio altitude to 750 feet, and set the FLAP/GEAR

 INHIBIT switch to the NORMAL position. (af) Make sure that no warning occurs. (ag) Slowly decrease the radio altitude to 180 feet at a rate not
 larger than 1000 feet per minute. (ah) Make sure that the indicators and the aural warning consists of
 TOO LOW FLAPS come on.
 (ai) Set the landing flaps to 30 degrees.
 (aj) Make sure that the warnings go off.

 S 735-009
 (6)  Do a Test of the Glide Slope (GS) Deviation Warning as follows:
 NOTE: The G/S warning referred to from here on consists of BELOW
____ G/S warning indicator and a GLIDE SLOPE aural warning. The PULL UP and INOP indicators stay off.
 (a)  
Make a radio altitude of 750 feet.

 (b)  
Tune the VHF NAV-1 to a localizer frequency.

 (c)  
Using the signal generator, apply a 0 GS deviation signal.

 (d)  
Make sure that no warning occurs.

 (e)  
Slowly apply a more than 2.5 -dot fly-up deviation signal.

 (f)  
Make sure that the G/S warning comes on with a soft voice.

 (g)  
Set the landing gear lever to OFF position, make sure that the G/S Warning goes off.

 (h)  
Set the landing gear lever to the DN position.

 (i)  
Make sure that the G/S warning comes on with a soft voice.

 (j)  
Slowly decrease the radio altitude to 250 feet.

 (k)  
Make sure that the G/S warning comes on and changes from a soft voice to a loud voice at approximately 300 feet.

 (l)  
Decrease the radio altitude to 0 feet.

 (m)  
Make sure that the G/S warning goes off.

 (n)  
Increase the radio altitude to 200 feet.

 (o)  
Make sure that the G/S warning comes on with a loud voice.

 (p)  
Decrease the glide slope deviation signal to less than 1 dot until the warning goes off.

 (q)  
Slowly increase the glide slope deviation signal until the G/S warning comes on with a soft voice (at 1 dot to 1.6 dot fly up deviation).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SUNDSTRAND MK II GPWC ú

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 ú ú 03 Page 508 ú Nov 12/00
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737-300/400/500MAINTENANCE MANUAL
　
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