SDR ASAA2022102740512

Service difficulty report · Compensator · Boeing 737890

Difficulty date: October 27, 2022
Submitted: October 31, 2022
Operation: Air carrier
Aircraft: N536AS
Make and model: Boeing 737890
Aircraft serial: 35203
Aircraft time: 39,538 hours, 11,270 cycles
System (JASC): 2840 · Fuel Indicating System
Part: Compensator
Condition: Out Of Limits
Location: Fuel Indicating
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

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

What was found

#1 FQIS FAILS SYSTEM TEST AT 404.7 PICO FARADS, REF AMM TASK 28-41-00-730-801. COMPENSATOR, TU1, TU2, TU3 , TU7 AND TU10 ARE OUT OF ACCEPTABLE LIMITS. GROUNDED - YES. REMOVED AND REPLACED PROBES - COMPENSATOR, TU1, TU2, TU3, TU7, AND TU10 REF B737-800 AMM 28-41-21/401. #1 FQIS SYSTEM TEST NOW GOOD AT 396.4/57.81 PICO FARADS. FOR INSPECTION REQUIREMENTS, POWER DEACTIVATION, & LEAK CHECKS REF TANK ENTRY TASK CARD 78528000-LINE.