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B  turbine blades or vanes. metal particles. Examine the evidence of the distress on the pressure turbine for the burned residue, distortion, and the 2. 3. B. Do the visual inspection as follows: A. Examine the exhaust sleeve, exhaust plug, and the aft of the low If the inspection is not satisfactory, do the borescope inspec-Do the hot section inspection (AMM 72-00-00/601) within 60 hours. 4. Correct the cause of the overtemperature with the procedure on the 1. Surge Conditions was over the limit (Takeoff or Max Continues) (4) Steady-State or Record: (1) Engine Serial No. (2) Max Temperature (3) Time the EGT tion (AMM 72-00-00/601, Engine Gaspath Inspection). Engine Parameters Abnormal (FIM 71-00-00/101, Fig. 103). 
C  1. 2. 3. Engine Manual). Correct the cause of the overtemperature in the shop (see the PW4000 Record: (1) Engine Serial No. (2) Max Temperature (3) Time the EGT Surge Conditions was over the limit (Takeoff or Max Continues) (4) Steady-State or Remove the Engine (AMM 71-00-02/401). 
D  1. Surge Conditions 2. Record: (1) Engine Serial No. (2) Max Temperature (3) Time the EGT was over the limit (Takeoff or Max Continues) (4) Steady-State or Put the engine back to service. 

Engine Overtemperature Inspection Requirements
(Ground and In Flight Starting, and Engine Operation Below Idle Speed)
Figure 205 (Sheet 2)

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 ú  N02A  Page 222
 ú  Jun 15/98 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
OVERTEMPERATURE - DURING ENGINE OPERATION (MINUTES)
EXHAUST GAS TEMPERATURE (T14.95) (SEE NOTE 3)
(PEAK TEMPERATURE)

AND UP
`C
680
675
670
665

660 655 650 645 640 635 630 625

0

AND UP SEE NOTE 2
TIME - MINUTES
TIME OF OVERTEMPERATURE - MINUTES
(TOTAL TIME ABOVE TAKE-OFF OR MAXIMUM CONTINUOUS LIMIT)

TAKE - OFF LIMIT, MAXIMUM REVERSE LIMIT.
MAXIMUM CLIMB, MAXIMUM CONTINUOUS LIMIT. CONTINUOUS OPERATION IS PERMITTED AT OR BELOW THIS LIMIT.
NOTE 1: THE TAKE-OFF LIMIT IS APPLICABLE FOR THE FIRST FIVE MINUTES (FROM THE START OF TAKE-OFF). AFTER FIVE MINUTES, THE MAXIMUM CLIMB, MAXIMUM CONTINUOUS LIMIT IS APPLICABLE FOR NORMAL OPERATION. THE TAKE-OFF LIMIT CAN BE EXTENDED FOR 10 MINUTES FOR EMERGENCY IN SERVICE USE.
NOTE 2: SEE SHEET 4 OF THIS FIGURE IF TIME OF OVERTEMPERATURE IS IN THE 0 TO 60 SECOND RANGE.
NOTE 3: EEC OUTPUT EGT TEMPERATURE INCLUDES 4`C SHUNT. FOR ENGINES PRE-PW-SB 73-166, ADD 4`C TO TEMPERATURE LIMITS.
PW V
Engine Overtemperature Inspection Requirements (Engine Operation at or above Idle Speed) Figure 206 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
CHART NO. OF
5
INSPECTION REQUIREMENTSAREA INCIDENTS
1-15
6 (1)  Make a record of these items: (1) Engine Serial No., (2) Max Temperature, (3) Time the EGT was over the limit (Takeoff or Max Continuous) (4) Steady-state or Surge Conditions
(2)  Do the visual inspection as follows:
A.  Examine the exhaust sleeve, exhaust plug, and the area to the rear of the low pres-
tion, and metal particles. Examine for signs of distress on the turbine blades or vanes.
B.  If the inspection is not satisfactory, do
A
the borescope inspection (AMM 72-00-00/ 601, Engine Gaspath Inspection).
(3)  Correct the cause of the overtemperature with the procedure on Engine Parameters Abnormal (FIM 71-00-00/101, Fig. 103).

sure turbine for burned residue, distor-

INSPECTION (AMM 72-00-00/601) AND THE HOT SECTION INSPECTION (AMM 72-00-00/601)
SHOW NO VISUAL DAMAGE.
Engine Overtemperature Inspection Requirements
(Engine Operation at or Above Idle Speed)
Figure 206 (Sheet 2)

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