CHAPTER
72
Engine PW
CHAPTER 72 Engine PW
Subject/Page Date COC Subject/Page Date COC
CHAPTER 72 
Engine PW
CH-SC-SU  Subject  Page  Effectivity  
72-00-00  ENGINE -INTRODUCTION  1  BEJ ALL  
72-00-00  ENGINE -GENERAL DESCRIPTION -1  6  BEJ ALL  
72-00-00  ENGINE -GENERAL DESCRIPTION -2  8  BEJ ALL  
72-00-00  ENGINE -PRIMARY COMPONENTS -LOCATIONS  10  BEJ ALL  
72-00-00  ENGINE -INLET CONE AND FAN BLADES  12  BEJ ALL  
72-00-00  ENGINE -INTERMEDIATE CASE  14  BEJ ALL  
72-00-00  ENGINE -FAN CASE REMOVAL  16  BEJ ALL  
72-00-00  ENGINE -MAIN AND ANGLE GEARBOX -COMPONENT LOCATIONS  18  BEJ ALL  
72-00-00  ENGINE -MAIN GEARBOX -AFT -COMPONENT LOCATIONS  20  BEJ ALL  
72-00-00  ENGINE -BORESCOPE ACCESS PORTS  22  BEJ ALL  
72-00-00  ENGINE -INTERMIX, INTERCHANGE, SUBSTITUTION  26  BEJ ALL 
72-CONTENTS 
Page 1 
D633W101-BEJ 
Jan 05/2004
ENGINE -INTRODUCTION
General 
This chapter gives general information about the modules and internal components of the PW4077 engine. 
BEJ ALL POST SB 777-71-0032 
This chapter gives general information about the modules and internal components of the PW4084 engine. 
BEJ ALL 
Data Plates 
The engine data plate is on the left side of the main gearbox. The data plate shows this information about the engine: 
* 
Model number
* 
Serial number
* 
Takeoff rating
* 
Date of manufacture
* 
Emissions compliance
* 
Installation arrangement
* 
Type certificate number
* 
EEC programing plug data.
The model number shows the engine configuration. 
EFFECTIVITY BEJ ALL 
The TAKE OFF RTG field shows the takeoff (TO) thrust (in pounds) for the specified engine. The TO thrust is the approved maximum thrust level at which the engine can operate. The thrust on the data plate is different than the thrust that Boeing uses, called Boeing equivalent thrust (BET). The thrust on the data plate is measured on a test stand and is equivalent to the static thrust at sea level. Boeing equivalent thrust (BET) is a calculated number, based on the thrust at 165 knots at sea level. BET is defined so that engines with the same BET will have approximately the same TO performance at sea level. 
The EMISSIONS field shows that the engine complies with emissions standards. 
The INSTL ARR field gives information about which airplane the engine is installed on. 
Type certificate is issued by the applicable regulatory agency. The certificate shows that the agency approves the engine as airworthy. 
 
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