Service difficulty report · Valve · Boeing 7673Y0

Difficulty date
December 4, 2018
Submitted
December 11, 2018
Operation
Air carrier
Aircraft
N642GT
Make and model
Boeing 7673Y0
Aircraft serial
26207
Aircraft time
79,188 hours, 20,995 cycles
Part
Valve
Part number
773288
Part serial
950311
Condition
Making Metal
Location
Lt Engine
Stage of operation
CL
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

LH ENG BLEED OFF MESSAGE INTERMITTENT ON TAKEOFF AND CLIMBOUT(<P>TRANSFERRED TO MEL 36-11-08-01-01A, MDDR # 103939 CAT C DUE 15DEC18</P><P>(NOTE: PRV INOP IN OPEN POSITION, HPSOV BLOCKED CLOSED AND FAN AIR VALVE BLOCKED IN THE INTERMEDIATE POSITION PER DDG PROCEDURES) REMOVED AND REPLACED LH PRSOV IAW AMM 36-11-09. OPS CHECK GOOD. THIS CLEARS DMI # 103939 / MCC NOTIFIED. PLACARDS REMOVED AND HPSOV REACTIVATED.</P>)

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