Service difficulty report · Pump · Boeing 737924ER

Difficulty date
July 1, 2023
Submitted
July 7, 2023
Operation
Air carrier
Aircraft
N68891
Make and model
Boeing 737924ER
Aircraft serial
42196
Aircraft time
24,877 hours, 9,007 cycles
Part
Pump
Part number
8283005
Part serial
YA058161
Condition
Unknown
Location
Nr 2 Engine Fuel
Part time
24,841 hours, 8,991 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

ON TAKE OFF ENGINE 2 DID NOT EXCEED 91.5 N1 W/ 98.5 REQUIRED. T HROTTLES MATCHED PERFORMED #2 ENG EEC BITE, NO FAULTED NOTED AS PER 73-21-00. WILL T/S AS PER FIM 73-06-BLOCK 809 SUSPECT LOW FUEL FLOW DURING TAKEOFF FROM PILOT REJECTED TAKEOFF REPORT WITH COMPARISON TO E1. IDT REQUIREMENTS C/W FOR #2 ENGINE FUEL PUMP PACKAGE REPLACEMENT IAW AMM 73-11-01. TEST [8], 12, 13, AND 3A NEED TO BE ACCOMPLISHED, AND PART POWER RUN FOR PRECAUTIONARY. REF FIM 73-05 TASK 808. ON #2 ENG INSPECTED AND PERFORMED TEST #5 FAILED. #2 ENGINE DID NOT MEET REQUIRED TAKEOFF POWER. PERFORMED EEC BITE TASK 73-00 TASK 801. NO FAULTS STORED. CONTINUED FIM. #2 ENGINE FMCS CDU DESCRETES REGULATOR EQUALS #3. CONTINUED FIM TASK. PERFROMED TLA AND TRA TESTS. ALL WITHIN REMOVED AND REPLACED FUEL PUMP PACKAGE PER AMM 73-11-01, TEST BLOWOUT OF PS3 LINE, REMOVED AND REPLACED FUEL FILTER PER AMM SEE PIC LIMITS. FIM STATES MUST TREAT AS A REGULATOR EQUALS #9 AS PER [8] , 12 , 13, 3A (DO 13,3A AT SAME TIME), AS PRECAUTIONARY AIR 73-11-02 LEAK CHECK GOOD, AND REMOVED AND REPLACED EEC (REF L/P STEP E(6). CRAFT STILL NEEDS PART POWER RUN. PARTS USED: 5043787). STILL REQUIRES TEST 5 POWER ASSURANCE CHECK. 29-7321-9-0012,QTY :1 1664080,QTY :1 ADD EMP:U243058 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1684537 SN OFF 0306 TT # 1664080 SN OFF 8161 IPC REFERENCE # 73-11-00 PUMP, MAIN FUEL OFF 29-7311-9-0001 8161 ON 29-7311-9-0001 0252 C/W IDT REQUIREMENTS. NO LEAKS NOTED AT THIS TIME PERFORMED TEST 3A IDLE POWER LE