Service difficulty report · Valve · Boeing 767306

Difficulty date
March 27, 2021
Submitted
March 30, 2021
Operation
Air carrier
Aircraft
N1427A
Make and model
Boeing 767306
Aircraft serial
28098
Aircraft time
83,239 hours, 18,217 cycles
Part
Valve
Part number
4200351
Part serial
107
Condition
Faulted
Location
Ecs
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

AFTER STARTING THE SECOND ENG GOT FWD EQUIP VALVE EICAS, VALVE LIGHT STAYED ILLUMINATED, RETURNED TO PARKING.(<P>TRANSFERRED TO MDDR# 144449, MEL 21-58-08-01-01. PLACARD INSTALLED AND MCC NOTIFIED. CAT C.</P><P>CVG, 28MAR, LP 1334570, ITEM M3: REMOVED AND REPLACED EQUIPMENT INBOARD SUPPLY VALVE IAW AMM 21-58-07 (OFF PART: PN 398774-6, SN 3273). OPS CHECK GOOD, DMI 14449 CLEARED, PLACARD REMOVED. NO FURTHER DEFECT NOTED BY MCC NOTIFIED. DISP RS @ 1508Z</P><P>LP 1491892: FWD EQ VALVE EICAS. DMI 144449 RE-OPENED.</P><P>LP 1491897: REMOVED AND REPLACED THE EQUIPMENT COOLING INDICATION CARD IAW B767 AMM 21-58-24. OPS TEST GOOD. PERFORMED ENGINE RUN IAW AMM 72-00-00. DMI REMAINS OPEN. P/N 285T0095-8 S/N D00137.<BR DATA-MCE-BOGUS="1" /></P><P>LP 1491899: T/S PER FIM 21-58 TASK 805. FOUND EQUIP COOLING 3 WAY SHUTOFF VALVE TO BE STICKING AND MAKING GRINDING NOISES. REMOVED AND REPLACED 3 WAY VALE IAW AMM 21-58-01. PERFORMED FWD EQ COOLING OPS CHECK IAW AMM 21-58-00. NO FAULTS NOTED. THIS CLEARS MDDR 14449.<BR DATA-MCE-BOGUS="1" /></P>)