Service difficulty report · Shutoff Valve · Boeing 737724

Difficulty date
June 2, 2023
Submitted
June 5, 2023
Operation
Air carrier
Aircraft
N38727
Make and model
Boeing 737724
Aircraft serial
28797
Aircraft time
75,337 hours, 26,364 cycles
Part
Shutoff Valve
Part number
2910024101
Part serial
1424
Condition
Leaking
Location
Fuel Tank
Part time
75,331 hours, 26,361 cycles
Stage of operation
CR
How discovered
V
Nature of condition
K
Precautionary procedure
A

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

What was found

DIVERT FOR SUSPECTED FUEL LEAK LEAKS. PERFORMED CROSSFEED VALVE FUNCTIONAL TEST IN REF TO MM28-22-00-7 ING FLOAT VALVE REF MM28-13-11. NO DEFECTS NOTED. NO UNWANTED TR ROTABLE PARTS CHANGE WAS INDICATED - TT # 1101271 SN OFF 1424 PERFORMED BOOST PUMP PRESSURE CHECK REF MM28-22-00-720-803. NO F ACCOMPLISHED TEST OF FUEL SCAVENGE FLOAT VALVE REF AMM REPLACED SCAVENGE FLOAT SHUTOFF VALVE PER AMM 28-22-16-400-801. AULTS NOTED. FOUND BOTH CENTER PUMPS TRANSFER FUEL AT THE SAME R 28-22-16-400-801, FOUND FLOAT LEAKING. NEED TO COMPLETE INSTALLATION FROM STEP 3. (H)3. TO COMPLETION. ADD EMP:U181462, U376505, U348848 VALVE, SHUTOFF, OFF 29-2822-9-9001 1424 ON 29-2822-9-9001 1371 COMPLETED INSTALLATION OF FUEL SCAVENGE FLOAT OPERATED SHUTOFF 29-2822-9-9007,QTY :1 VALVE IN REFERENCE TO AMM 28-22-16-400-801. PERFORMED FUEL SCAVENGE OPERATIONAL TEST IN REFERENCE TO AMM 28-22-00-720-802. NO DEFECTS NOTED AT THIS TIME.