SDR ASAA2023071444049

Service difficulty report · Probe · Boeing 737890

Difficulty date: July 14, 2023
Submitted: July 18, 2023
Operation: Air carrier
Aircraft: N506AS
Make and model: Boeing 737890
Aircraft serial: 35690
Aircraft time: 54,141 hours, 16,390 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Probe
Part number: 202000207
Condition: Out Of Tolerance
Location: Lt Wing Fuel
Stage of operation: IN
How discovered: C
Nature of condition: O
Precautionary procedure: K

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

What was found

#2 MAIN TANK FQIS FAILS SYSTEM TEST REF AMM 28-41-00-730-801. TANK UNITS 2, 3, AND 5 ARE OUT OF ACCEPTABLE VALUES. GROUNDED - YES. (RESOLVED ON W/O: 1960790 TASKCARD: N/R-00007 ) INITIATED MIG-2C 40-0038935. REMOVED & REPLACED #2 FUEL TANK UNITS 2, 3 & 5. ALL APPLICABLE TESTS PASS. NO LEAKS NOTED FOR PANELS 632BB, 632CB & 632EB. REF. AMM 28-41-21. MIG-2C 40-0038935 COMPLETE. PULLED & RESET 9 C/B'S. REMOVED PLACARDS. MTX PROCEDURES REVERSED. THIS CLEARS MEL 28-6B & 28-12B C/N 14010506.