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SEE B
PS3 TEST PORT SEE C
PLUG
B
GASKET
PS3 TEST PORT C
PT2.5, PS3, and PS4I Test Port Locations Figure 505 (Sheet 2)
A39428
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 71-00-00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE D
PS4I TEST PORT SEE E
CAP
D
DIFFUSER CASE PAD
PS4I TEST PORT E
L-A3032
PT2.5, PS3, and PS4I Test Port Locations Figure 505 (Sheet 3)
A39433
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 71-00-00
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TEST NO. 9 - PERFORMANCE TEST
_____________________________
 S 415-154-N00 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (6)  
Close the thrust reversers (AMM 78-31-00/201). S 415-155-N00

 (7)  
Close the core cowl panels (AMM 71-11-06/201). S 415-156-N00

 (8)  
Close the fan cowl panels (AMM 71-11-04/201). S 445-157-N00

 (9)  
Do the activation procedure for the thrust reversers (AMM 78-31-00/201).

 S 975-090-N00 CAUTION: TO PREVENT ERRORS WHEN YOU USE THE CHECKOUT TARGET, DO NOT USE
_______ THE AIRPLANE INDICATION OF THE TOTAL AIR TEMPERATURE FOR THE AMBIENT AIR TEMPERATURE. MAKE SURE TO GET THE LOCAL BAROMETRIC PRESSURE (NOT CORRECTED TO SEA LEVEL) FROM THE CONTROL TOWER.
 DO NOT USE A MERCURY THERMOMETER ON THE AIRPLANE. IF THE THERMOMETER BREAKS, THE MERCURY CAN CAUSE DAMAGE TO EQUIPMENT.
 (10)
 Find the ambient air temperature [outside air temperature (OAT)] with the thermometer.

 S 975-091-N00

 (11)
 Make a record of the barometric pressure, OAT and specific humidity.

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 71-00-00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TEST NO. 9 - PERFORMANCE TEST
_____________________________
 S 975-022-N00
 (12) Find these trim targets from the table for the Engine Checkout target (Ref 71-00-01/201) and write the data:
 NOTE: Make sure you write the target values, the tolerances and the
____
 permitted ranges (minimum/maximum).

 (a)
MIN IDLE (%N2)

 (b)
MIN PB (PSIA)

 (c)
APP IDLE (%N2)

 (d)
N1 @1.25 EPR (%N1)

 S 975-024-N00
 (13) Find the range (minimum/maximum) of the %N1 INCREASE from the table for the FADEC MODE SELECTION CHECK (Ref Table 502) and write the data.
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TEST NO. 9 - PERFORMANCE TEST
_____________________________
 ~................................................ | TABLE 502 | | FADEC MODE SELECTION CHECK | .................................................. | | N1 INCREASE | | OAT | FROM SETTING TARGET | | ............................... | °F (°C) | MINIMUM | MAXIMUM | ..................................................
　
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