Service difficulty report · Compensator · Boeing 737990

Difficulty date
December 28, 2019
Submitted
December 31, 2019
Operation
Air carrier
Aircraft
N303AS
Make and model
Boeing 737990
Aircraft serial
30016
Aircraft time
64,927 hours, 25,827 cycles
Part
Compensator
Part number
2020201
Part serial
AC00303
Condition
Failed
Location
Right Main Tank
Part time
10,722 hours, 4,936 cycles
Stage of operation
CL
How discovered
O
Nature of condition
N
Precautionary procedure
E

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

What was found

SUSPECTED FUEL LEAK: DURING CLIMB & CRUISE FUEL IMBALANCE OCCURRED AND CONTINUED AT 900LB IMBALANCE WE WERE INDICATING 1900LBS OVER PLANNED FUEL BURN. PER QRH "FUEL LEAK" CHECKLIST, ENGINE #1 WAS SECURED AND WE MADE A DIVERSION TO BOI. GROUNDED - YES. REFERENCE TSR704555, 704556, AND 704569, 13 FUEL QUANTITY PROBES (P/N 20200-0103, 20200-0104, 20200-0205, 20200-0206, 20200-0210, 20200-0211, 20200-0212, COMPENSATOR P/N 20202-01) REPLACED BETWEEN LH MAIN AND RH MAIN FUEL TANKS. CROSSFEED VALVE CLOCKED. NO LEAKS NOTED.