SDR UIEA2020101402253

Service difficulty report · Valve · Boeing 76738E

Difficulty date: October 13, 2020
Submitted: October 15, 2020
Operation: Air carrier
Aircraft: N641GT
Make and model: Boeing 76738E
Aircraft serial: 25132
Aircraft time: 88,868 hours, 25,259 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Valve
Part number: 3987865
Part serial: P636
Condition: Malfunctioned
Location: Cabin Temp
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

FWD CAB TEMP EICAS MESSAGE, COMPT TEMP INOPERABLE LIGHTS, PASSENGER, -200/-300, TRIM AIR MODULATING VALVE CLOSED. TRANSFERRED TO MDDR 136025, IAW MEL 21-61-06-01-01A, CAT C. REMOVED AND REPLACED FWD CABIN TRIM AIR VALVE ASSEMBLY, PER AMM 21-67-07. OPERATIONS CHECKS GOOD. THIS CLEARS MDDR 136025. DISP SP AT 2017.

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