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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
NO N2 ROTOR ROTATION WHEN START INITIATED PREREQUISITES
MAKE SURE THESE CIRCUIT BREAKERS ARE OPEN AND ATTACH A DO-NOT-CLOSE TAG: ENGINE NO. 2 RIGHT IGNITION ENGINE NO. 2 LEFT IGNITION ENGINE NO. 1 RIGHT IGNITION ENGINE NO. 1 LEFT IGNITION
MAKE SURE THE AIRPLANE IS IN THIS CONFIGURATION: ELECTRICAL POWER IS ON (AMM 24-22-00/201) PNEUMATIC POWER IS ON (AMM 36-00-00/201) PUT THE START LEVERS IN THE CUTOFF POSITION AIRPLANE ON AN OPEN AIR RAMP FOR AN APU START
NO
YES
DO THE PROCEDURE TO DRY
11 DISCONNECT ELECTRICAL CON-MOTOR THE ENGINE (AMM 71-00-00/ NECTOR D424 FROM THE V6 START 201). MOVE THE START SWITCH VALVE (WDM 80-11-11).TO THE GROUND POSITION. MEASURE FOR 28V DC AT CON-
DOES THE START VALVE OPEN NECTOR, PIN 2 (PIN 1, GROUND). LIGHT COME ON? IS 28V DC PRESENT?
YES
NO 22 REPLACE THE APPROPRIATE SEE SHEET 2 ENGINE START SWITCH, S266 OR (BLOCK 2) S267 (WDM 80-11-02). IF THE PROBLEM CONTINUES, EXAMINE THE CIRCUIT FROM CON-NECTOR, ENG 1 (2) START VALVE, V6, PIN 2 (PIN 1, GROUND), THROUGH THE S2 ENG 1 (2), S266 (S267) START/IGNITION SWITCH, TO THE CB ENG 1 (2) START VALVE, FOR AN OPEN CIRCUIT (WDM 80-11-02). REPAIR THE PROBLEMS THAT YOU FIND.
1
No N2 Rotor Rotation When Start Initiated
Figure 101 (Sheet 1)
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 1
(BLOCK 1)
YES
NO
YES
YES NO 24 REPLACE THE ENGINE STARTER (AMM 80-11-01/401). GO TO BLOCK 4.
NO ____DO NOT DO AN ENGINE
NOTE: START BEFORE BLOCK 4. YES
NO
4 DO THE APU OPERATION TEST 25 DO THE TROUBLESHOOTING OF
(AMM 49-11-00/501). THE APU FOR INDICATION
DID THE APU OPERATE PROBLEMS (AMM 49-00-00/101).
CORRECTLY?
YES
NO
5 MONITOR THE PNEUMATIC DUCT
26 DO THE TROUBLESHOOTING OF
PRESSURE INDICATOR ON THE THE APU FOR DUCT PRESSURE
OVERHEAD PANEL, P5. FLUCTUATIONS (AMM 49-00-00/
IS THE DUCT PRESSURE 101). STABLE?
YES SEE SHEET 3
(BLOCK 6)
No N2 Rotor Rotation When Start Initiated
Figure 101 (Sheet 2)
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B06919
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 2 (BLOCK 5)
YES
YES
6
SHUT DOWN THE APU
(AMM 49-11-00/501).
DO A CHECK OF THE MAGNETIC CHIP DETECTORS (AMM 79-00-00/ 601).
ARE INDICATIONS OF AN ENGINE AND/OR GEARBOX FAILURE FOUND?
NO
NO
NO
7 MANUALLY TURN THE N2 ROTOR17 A NEW ENGINE (PRODUCTION 中國(guó)航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：737-300 400 500 AMM 飛機(jī)維護(hù)手冊(cè) 動(dòng)力裝置 POWER PLANT 1(173)
