Service difficulty report · Stator · Boeing 757200

Difficulty date
March 3, 2023
Submitted
March 3, 2023
Operation
Air carrier
Aircraft
N13138
Make and model
Boeing 757200
Aircraft serial
30351
Aircraft time
85,617 hours, 20,321 cycles
Part
Stator
Part number
450401
Part serial
0121
Condition
None
Location
Lh Eng
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EICAS AUTOTHROT DISC EICAS ON T/O L ENG EEC L ENG LIMITER PERFORMED FIM 22-02 TASK 801 AND FOUND A/T DISC EEC L/TMC CODE 31890. PERFORMED EEC BITE FIM 73-21 T 802 AND NO FAULT NOTED. PERFORMED BVCU BITE FIM TASK 75-32 T 830 AND NO FAULT FOUND. CK BETWEEN PINS 4 AND 19 OF CON D1386P TO PINS 4 AND 19 OF CON D1484 THRU TB 1 JJ7. ALL CK GOOD REF WDM 71-51-22. PERFORMED FIM TASK 73-21 FT 820. 28 VDC AT CON D4162 PIN 2 AND FURTHER T/S REQUIRED. AS PER TECH SUPPORT, DG REQUIRES TECH SUPPORT MIKE LEONARD REQUESTS REPLACEMENT OF E1 DRIVE REMOVED #1 ENGINE DEDICATED GENERATOR. REF MM 73-21-08 R&R DEDICATED GENERATOR STATOR IAW AMM 73-21-08 , OPS AND LEAK R&R GENERATOR ROTOR AND DRIVE IAW AMM 73-21-08-01 , OPS AND LEAK DIOD CHECKS IN DGCU A AND B CK GOOD. PERFORMED CONTINUITY AND REPLACEMENT AND HIGH POWER ENGINE RUN. GENERATOR AND HIGH POWER ENGINE RUN. ADD EMP:U248952 CHECK GOOD PARTS USED: 19-7321-9-9002,QTY :1 CHECK GOOD PARTS USED: 19-7321-9-0004,QTY :1 MEG CK BETWEEN M10157 AND M10165 DGCU''S TO M10169 DG WITH ADD EMP:U139080 ADD EMP:U139080 SHAKEDOWN. PERFORMED RESISTANCE CK OF COILS IN DG. PERFORMED RES ROTABLE PARTS CHANGE WAS INDICATED - TT # 1869505 SN OFF 0121 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1966393 SN OFF 4588 IPC REFERENCE # 73-21-08 GENERATOR, ROTO OFF 19-7321-9-0004 4588 ON 19-7321-9-0004 4386 STATOR, DEDICAT OFF 19-7321-9-9002 0121 ON 19-7321-9-9002 0014 PERFORMED HIGH POWER RUN IAW AMM 71-00-00 TEST 13 , ALL PARAMETERS NORMAL. NO FAULTS N

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