Service difficulty report · Thermostat · Airbus A320232

Difficulty date
December 7, 2023
Submitted
December 11, 2023
Operation
Air carrier
Aircraft
N494UA
Make and model
Airbus A320232
Aircraft serial
1840
Aircraft time
64,175 hours, 28,266 cycles
Part
Thermostat
Part number
342B050000
Part serial
1315
Condition
Faulty
Location
Eng#1
Part time
708,939 hours, 704,207 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J, O
Precautionary procedure
A

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

What was found

ENG 1 BLEED LOW TEMP IN AMBER ON SYS PAGE FL 360. REPEAT GRIPE UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. APPLY MEL 3611J AND 3611A IF DD AND OPWS WILL APPROVE. OTHERWISE WILL NEED TPO REPLACE THE FAN AIR VALVE MAC METER INITIATED FOR WITH VENDOR ID V945790 MAC RELATED WORK ORDER 000000003092053 AND PRTR FAN AIR VALVE INOP M#1 ENGINE PEFORMED FUNCTIONAL TEST OF THE OPENING OF THE FAN AIR VALVE IAW AMM 36-11-54-720-001-A-02. VALVE PASSED TEST TO EXACT FAN AIR VALVE INOP M#1 ENGINE SPECIFICATIONS CHART LISTED IN SECTION 4 PART C. FAN AIR VALVE HAS NO FAULTS. DEFERRED DIRECTLY BY TOMC THERMOSTAT, CON OFF 31-3615-9-9002 1315 ON 0000 THERMOSTAT, CON OFF 31-3615-9-9002 1315 ON 31-3615-9-9002 3246 REMOVED AND REPLACED FAN AIR VALVE THERMOSTAT CONTROL AS PER TSM 36-11--00-810-887-A, AMM 36-11-43-400-001. LEAK CHECK GOOD, PLACARDS REMOVED; THIS CLEARS MEL. PARTS USED: 31-3615-9-9002,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1715361 SN OFF 1315.

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