Service difficulty report · Valve · Boeing 76737D

Difficulty date
July 23, 2019
Submitted
July 29, 2019
Operation
Air carrier
Aircraft
N1327A
Make and model
Boeing 76737D
Aircraft serial
26328
Aircraft time
84,069 hours, 12,331 cycles
Part
Valve
Part number
7738556
Part serial
890416
Condition
Malfunctioned
Location
Bleed Air Sys
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
H

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

What was found

R ENG BLD EICAS MSG INTERMITTENT THROUGH FLT. (<P>TRANSFERRED TO MEL 36-12-02-01 MDDR 115218, CAT C, DUE DATE: 02-AUG-19. PERFORMED BITE ON AIR SUPPLY MODULE FAV LIGHT SHOWN FIM 36-11-16.</P><P>LP 1090086 - M5: PERFORMED BITE TEST ON AIR SUPPLY BITE MODULE FOR FAULTS FROM LAST FLIGHTS. FOUND FAMV FAULT (DEFERRED). PERFORMED ENGINE RUN ON RT ENG IAW AMM 71-00-00 AFTER REACTIVATING FAMV (UNLOCKED). USE RT ENG BLEED. NO DEFECTS NOTED. RE DEFERRED (LOCKED) FAMV PER MEL 36-12-02-06. ITEM REMAINS OPEN. MCC NOTIFIED. </P><P>LP 1090091 - M5: REMOVED AND REPLACED FAN AIR VALVE ASSY ON RIGHT ENGINE IAW AMM 36-11-16. OPS CHECKS GOOD. THIS CLEARS MDDR 115218. MX ACTIONS REVERSED. MCC NOTIFIED AND PLACARDS REMOVED. </P>)

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