(b)  
Simulate a barometric sink rate of 4500 feet per minute. Check that PULL UP indicators and aural warning consisting of SINK RATE come on.

(c)  
Slowly reduce radio altitude to 1200 feet. Check that PULL UP indicators remain on, and that aural warning changes to WHOOP-WHOOP PULL UP.

(d)  
Adjust barometric sink rate to 2700 feet per minute. Check that warning goes off.

NOTE: The warning may change to SINK RATE before going off.

(e)  
Return barometric altitude to 10,000 feet, barometric sink rate to 0 feet per minute, and simulate a radio altitude of 1000 feet. Check that no warning occurs.

(f)  
Simulate a barometric sink rate of 3000 feet per minute. Check that PULL UP indicators and aural warning consists of SINK RATE come on.

(g)  
Slowly reduce radio altitude to 700 feet. Check that PULL UP indicators remain on, and that aural warning changes to WHOOP-WHOOP PULL UP.

(h)  
Reduce barometric sink rate to 1800 feet per minute. Check that Warnings go off.

(3) 
 Test Closure Warning

(a)  
Set barometric altitude to 5000 feet and radio altitude to 2100 feet.

(b)  
Gradually reduce simulate d radio altitude from 2100 feet to 100 feet in approximately 30 seconds. Check that PULL UP indicators and aural warning consists of TERRAIN, TERRAIN followed by a repetition of WHOOP-WHOOP PULL UP come on when radio altitude reaches below 1500 feet.

(c)  
Increase radio altitude to 600 feet. Check that PULL UP indicators remain on, and that aural warning changes to a repetition of TERRAIN.

(d)  
Increase barometric altitude to 5400 feet. Check that warnings go off.

(4)  
Test Descent in Wrong Configuration

(a)  
Set landing flaps to 10 degrees and simulate a radio altitude of 750 feet. Check that no warning occurs.

(b)  
Slowly reduce radio altitude to 400 feet at a rate not greater than 1000 feet per minute. Check that PULL UP indicators and aural warning consists of TOO LOW GEAR come on.

(c)  
On GUN B-2501 thru B-2503 and B-2511 thru B-2516, set landing gear lever to DN position. Check that warnings go off.

(d)  
On GUN B-2504, B-2505, B-2509, B-2510 and XIA B-2524, perform the following: 1) Set FLAP/GEAR INHIBIT switch to the INHIBIT position. Check that all warnings

cease.
2) Set landing gear lever to DN position.
3) Set FLAP/GEAR INHIBIT switch to the NORMAL position.

(e)  
Using pitot static test set, simulate 0.3 mach by apply static pressure (Ps) of 20.58 In. Hg. and total pressure (Pt) of 21.90 In. Hg. Check that no warning occurs.

(f)  
Slowly reduce radio altitude to 200 feet. Check that PULL UP indicators and aural warning consists of TOO LOW TERRAIN come on.

(g)  
Increase radio altitude to 850 feet. Check that warnings go off.

(h)  
Simulate a 0.4 mach (Ps of 20.58 In. Hg. and Pt of 22.97 In. Hg.). Check that no warning occurs.

(i)  
Slowly reduce radio altitude to 700 feet. Check that PULL UP indicators and aural warning consists of TOO LOW TERRAIN come on.

(j)  
Increase radio altitude to 1100 feet. Check that warnings go off.

(k)  
Simulate a 0.6 mach (Ps of 20.58 In. Hg. and Pt of 26.25 In. Hg.). Check that no warning occurs.

(l)  
Slowly reduce radio altitude to 900 feet. Check that PULL UP indicators and aural warning consist of TOO LOW TERRAIN come on.

(m)  
Increase radio altitude to 1100 feet. Check that warnings go off.

(n)  
Simulate a 0.2 mach (Ps of 20.58 In. Hg. and Pt of 21.16 In. Hg.). Check that no warning occurs.

(o)  
Slowly reduce radio altitude to 180 feet at a rate not greater than 1000 feet per minute. Check that PULL UP indicators and aural warning consists of TOO LOW FLAPS come on.

(p)  
Set FLAP (FLAP/GEAR) INHIBIT switch on first officer's instrument panel to INHIBIT position. Check that warnings go off.

(q)  
Increase radio altitude to 750 feet, and set FLAP (FLAP/GEAR) INHIBIT switch to NORMAL position. Check that no warning occurs.

(r)  
Repeat Step (o).

(s)  
Set landing flaps to 30 degrees. Check that warnings go off.

(5)
Test Glide Slope (GS) Deviation Warning NOTE: The G/S warning referred to from here on consists of BELOW G/S warning

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