Service difficulty report · Valve · Boeing 767306

Difficulty date
February 29, 2020
Submitted
March 9, 2020
Operation
Air carrier
Aircraft
N1399A
Make and model
Boeing 767306
Aircraft serial
27959
Aircraft time
90,623 hours, 17,431 cycles
Part
Valve
Part number
3987865
Part serial
14102
Condition
Faulty
Location
Cabin Temp
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FWD/AFT CABIN TEMP EICAS MSG(<P>DEFERRED CABIN TEMP CONTROL SYS IAW MEL 21-61-01-02, DMI 125198, CAT 'C'.</P><P>LP 1208383 - M5: REMOVED AND REPLACED FWD TRIM VALVE IAW AMM 21-61-07.</P><P>LP 1208398 - M16: OPS SYSTEM TEST OK IAW AMM 21-61-01, CLEARED MDDR 125198.</P>)