SDR UIEA2020102702313

Service difficulty report · Modulating Valve · Boeing 767328

Difficulty date: October 26, 2020
Submitted: October 29, 2020
Operation: Air carrier
Aircraft: N1499A
Make and model: Boeing 767328
Aircraft serial: 27428
Aircraft time: 81,578 hours, 18,179 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Modulating Valve
Condition: Failed
Location: Cabin Temp
Stage of operation: IN
How discovered: V
Nature of condition: J
Precautionary procedure: K

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

What was found

EICAS MESSAGE "FWD CABIN TEMP" WHILE AT PARKING SPOT. TRANSFERRED TO MDDR NR 136755, PER DDG 21-61-01-02, CAT C. DUE 05NOV20. T/I ACL 0428. REMOVED AND REPLACED FWD TRIM AIR MODULATING VALVE, IAW AMM 21-61-07. OPERATIONS CHECK GOOD, MESSAGE CLEARED. THIS CLEARS DMI 136755. PLACARD REMOVED, MCC NOTIFIED.