Service difficulty report · Probe · Cessna 680A

Difficulty date
March 5, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N585QS
Make and model
Cessna 680A
Aircraft serial
680A0141
Aircraft time
4,880 hours, 3,208 cycles
Part
Probe
Part number
99146663
Part serial
MN41881
Condition
Defective
Stage of operation
DE
How discovered
L
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

LEFT FUEL QUANTITY INDICATION: DURING DESCENT WE GOT FUEL IMBALANCE CAUTION. LEFT SIDE SHOWED 400 LBS LOW AND CONTINUED TO DROP. RAN CHECKLIST FOR IMBALANCE AND USED CROSSFEED OFF RIGHT SIDE. FUEL INDICATION CONTINUED TO DROP ON LEFT. ASSUMED FUEL LEAK AND LANDED UNEVENTFULLY. AFTER LANDING THE LEFT FUEL INDICATION WENT FROM 600 TO 1400 AFTER 15 MIN. FOUND AT 22:01:03 LH PROBE 2 WENT FROM 4.5MA DOWN TO .788MA, A FEW TIMES WENT BACK UP TO 4.5MA BUT THEN DROPPED DOWN AND REMAINED AROUND .8MA FOR THE REST OF THE FLIGHT WHILE THE RH PROBE 2 REMAINED AROUND 4MA TO 4.5MA; ORDERED A PROBE 2. R & R LT #2 FUEL PROBE IAW 28-40-25. PERFORMED FUEL QTY OPS CHECK. OPS TEST CHECKED GOOD. WORK PERFORMED IAW MM 28-40-00.

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