Fuel Temperature Shows XX, Left Wing Tank

TASK 28-42-00-810-841-A
Fuel Temperature Shows XX, Left Wing Tank

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

1. Possible Causes

FQIC [3QT]
PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B [54QT1]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 28-42-00-810-830-A	Fuel Quantity/Temperature Probe 54QT1(2), Left(Right) Wing Tank

3. Fault Confirmation
Subtask 28-42-00-710-090-A ** ON A/C NOT FOR ALL

A. On the ECAM CONTROL PANEL, push (in) the FUEL pushbutton switch (P/BSW).
(1) Examine the fuel temperatures on the FUEL system page.
(2) If the left wing tank fuel temperature shows correctly:

maintenance steps are not necessary.

NOTE: The left wing tank fuel temperature is supplied by a dual element temperature sensor located within the fuel probe 54QT1.

4. Fault Isolation
Subtask 28-42-00-810-090-A ** ON A/C NOT FOR ALL

A. If the left wing tank fuel temperature shows XX:
(1) Examine the Post Flight Report (PFR) for the LRUs:

FQIC [3QT]
PROBE-FQI NO 2 AND TEMP, RIB 1-2 L WNG TK GROUP B [54QT1] .

NOTE: The left wing tank fuel temperature will show XXs if both temperature sensors within the fuel probe 54QT1 fail.

(2) If the LRUs listed in Para. (1) are shown:

do (Ref. TSM TASK 28-42-00-810-830).

[Rev.8 from Aug 2018] 2026.04.04 04:29:07 UTC