Service difficulty report · Governor · Boeing 757224

Difficulty date
May 10, 2025
Submitted
May 13, 2025
Operation
Air carrier
Aircraft
N19141
Make and model
Boeing 757224
Aircraft serial
30354
Aircraft time
86,330 hours, 20,569 cycles
Part
Governor
Part number
8062551
Part serial
11539677
Condition
Faulty
Location
Fuel Sys
Part time
68,035 hours, 27,443 cycles
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

LEFT ENG FAILED TO GET 1.60 EPR ON TAKEOFF ONLY REACHED 1.30 REJ ECTED AT 80KTSPERFORMED FIM 77-11 FAULT TREE 805. REMOVED AND REPLACED E1 EPR TRANSMITER IN REFF WITH AMM TASK 77-11-01. REQUIRES HIGH POWER RUN DUE TO E1 EPR DID NOT PASS 1.3.PARTS USED: 19-7711-9-0001,QTY :1 ROTABLE PARTS CHG:TT # 1491847 SN OFF 4150 PN OFF 19-7711-9-0001 TRANSMITTER, EN OFF 19-7711-9-0001 4150 ON 19-7711-9-0001 6015 PERFORMED TEST 13-TAKE OFF POWER TEST IAW AMM 71-00-00-715-RO3 ON #1 ENGINE. WITH EEC SWITCH TO OFF #1 ENGINE WOULD ONLY REACH 1.36 EPR WITH EEC SWITCH ON ENGINE WOULD ONLY REACH 1.34 EPR. REF FIM 71-06 FAULT TREE 807 FOR TROUBLESHOOTING. SWITCHED FIM TASK TO 71-06 TREE 807, BLOCKS 1-4 PCW ON PRIOR TASK 77-11 TREE 805. NO FUEL LEAKS NOTED . NEED TO REPLACE E1 FFG . REMOVED #1 ENGINE FFG IAW AMM 73-21-01. NEED TO INSTALL NEW FFG. INSTALLED FFG ON ENG #1 AS PER AMM 73-21-01-404-013-R04 STILL REQUIRES OPS & LEAKS CHECK AT THIS TIME C/W IDT REQUIREMENTS FOR ENG 1 FFG INSTALL IN REF TO AMM 73-21-01-404-013-R04, OPS AND LEAK CHECK REQUIRED. LEAK CHECK OF ENG 1 FFG GOOD. STILL REQUIRES OPS CHECK AND FAULT REPAIR CONFIRMATION. C/W GMM IDT, ENG #1 FFG LEAK CHECK GOOD. CW IDT INSP FOR E1 TESTS 9, 10, 11 REF AMM-71-00-00-715-170/588/197.