SDR ASAA2016121819088

Service difficulty report · Compensator · Boeing 737890

Difficulty date: December 18, 2016
Submitted: December 20, 2016
Operation: Air carrier
Aircraft: N558AS
Make and model: Boeing 737890
Aircraft serial: 35177
Aircraft time: 39,998 hours, 11,739 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Compensator
Part number: 2020201
Part serial: 6321
Condition: Out Of Tolerance
Location: Nr 1 Fuel Tank
Part time: 39,998 hours, 11,739 cycles
Stage of operation: IN
How discovered: V
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

PERFORMED FQIS TANK AND COMPENSATOR UNITS TEST IN NR 1 MAIN TANK IAW NG-28FCD-18088-1. FOUND THE FOLLOWING PROBES OUT OF TOLERANCE: COMPENSATOR, F1, F2, F3, F7, F8, AND F10. GROUNDED - YES. COMPENSATOR AND TANK UNITS 1, 2, 3, 7, 8, AND 10 CHANGED AND TESTED IAW AMM 28-41-21 & 28-41-00. FQIS SYSTEM TEST PASSED, OK FOR SERVICE.