Service difficulty report · Anti-Ice Valve · Boeing 767306

Difficulty date
March 21, 2020
Submitted
March 24, 2020
Operation
Air carrier
Aircraft
N1427A
Make and model
Boeing 767306
Aircraft serial
28098
Aircraft time
80,967 hours, 17,487 cycles
Part
Anti-Ice Valve
Part number
2790583108
Part serial
2542A
Condition
Failed
Location
Lt Engine
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

L ENG ANTI ICE VALVE EICAS.(<P>PERFORMED REMOVAL AND REPLACEMENT OF LH ENGINE ANTI ICE AUTO RELAY K2105 IN THE P36 PANEL, NO FIX IAW WDM 30-21-11. P/N OFF: W26F4AM11, S/N: OFF: NSN.</P><P>ITEM M3: SECURED LH ANTI ICE VALVE (ENGINE) OPEN IAW DDG 30-21-01-04-02. TRANSFERRED TO MDDR #126081 IAW MEL 30-21-01-04-02, CAT C, DUE DATE 31MAR20.</P><P>LOGPAGE 1071428 ITEM #2: ACCOMPLISHED TAI VALVE TEST IAW AMM 30-21-03. OPS CK FAIL AT STEP E13(1). VALVE FAILED TO CLOSE WHEN COMMANDED. TAI DEACTIVATED PER DDG 30-21-01-04. DMI 126081 REMAINS.</P><P>LOGPAGE 1071428 ITEM #3: REMOVED AND REPLACED L ENG ANTI ICE VALVE IAW B767 30-21-03 AMM & 71-00-00. OPS CHECK GOOD. NO DEFECTS NOTED. THIS CLEARS MDDR #126081.</P>)