SDR ASAA2021101936343

Service difficulty report · Probe · Boeing 737890

Difficulty date: October 19, 2021
Submitted: October 20, 2021
Operation: Air carrier
Aircraft: N534AS
Make and model: Boeing 737890
Aircraft serial: 35202
Aircraft time: 40,745 hours, 11,622 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Probe
Part number: 202000212
Condition: Failed
Location: Right Wing
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 FUEL QUANTITY INDICATION SYSTEM FAILS CAPACITANCE TEST REF B737-800 AMM 28-41-00-730-801. TANK UNIT # 7 IS OUT IS ACCEPTABLE VALUES WHEN TEST ACCOMPLISHED. GROUNDED - YES. REMOVED AND REPLACED #2 MAIN TANK PROBE #7 REF B737-800 AMM 28-41-21. CAPACITANCE TEST PASS REF AMM 28-41-00. TANK 2 SPAR CONNECTOR REINSTALLED AND SAFETIED, C/B RESET. FQIS TEST OP CHECK GOOD REF AMM 28-41-00. ETOPS GROUND VERIFICATION SUCCESSFUL.