Service difficulty report · Indication Sys · Boeing 767306

Difficulty date
November 19, 2020
Submitted
November 20, 2020
Operation
Air carrier
Aircraft
N1409A
Make and model
Boeing 767306
Aircraft serial
27960
Aircraft time
93,728 hours, 18,328 cycles
Part
Indication Sys
Condition
Failed
Location
Fuel Qty
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ITEM 1-FUEL CONFIG EICAS. TOTALIZER VS. CALCULATED=3.1 THOUSAND POUNDS. TOTALIZER 3.1 THOUSAND LESS THAN CALCULATED INDICATION=SUSPECTED FUEL LEAK. PERFORMED BITE TEST ON FQIS, FOUND LM DENS CONTAM OR RESISTOR G AND LM COMPENSATOR CONTAMINATED G. STUCK LM AND RM TANK AND FOUND FUEL TOTAL QTY TO BE WITHIN 500 LBS OF INDICATOR AT THIS TIME. SUS FAULTY DENSIOMETER OR COMPENSATOR CONTINUED ON LP 1241030 AND 1241031. LP 1241030/ITEM M6/RIV-LT MAIN FUEL QTY INOPERABLE. TRANSFERRED TO MDDR 138163, CAT C DUE 30N0V20, IAW MEL 28-41-01-01. ETOPS RESTRICTED. TOTAL FUEL QUANITY INOPERABLE. TRANSFERRED TO MDDR 138164 CAT C DUE 30N0V20, IAW MEL 28-41-07A.