Service difficulty report · Probe · Boeing 76733A

Difficulty date
November 27, 2016
Submitted
November 28, 2016
Operation
Air carrier
Aircraft
N583HA
Make and model
Boeing 76733A
Aircraft serial
25531
Aircraft time
101,802 hours, 18,227 cycles
Part
Probe
Condition
Out Of Limits
Location
Fuel System
Stage of operation
UK
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

FUEL QTY INDICATION STATUS MESSAGE. RIGHT HAND QTY AND TOTAL FUEL QTY BLANK. REPLACED FUEL QUANTITY INDICING PROCESSOR UNIT PER AMM 28-41-08. CONDITION STILL EXISTS. PERFORMED DRY CAP. TEST PER AMM 28-41-00, NR 5 PROBE OUT OF LIMITS. NR 5 PROBE REPLACED, TANK SYS CAPACITANCE CHECK PASSES. AVIONICS REPORTS MULTIPLE ISSUES WITH THE HI-Z TO SHIELD, SHIELD TO CROUND AND LO-Z TO HI-Z. TO T/S FURTHER THEY NEED TO DISCONNECT THE PROBES TO VERIFY THE HARNESS, THEN VERIFY THE PROBE CONDITION ONE AT A TIME.

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