Service difficulty report · Shutoff Valve · Boeing 767332

Difficulty date
November 2, 2001
Submitted
November 29, 2001
Operation
Air carrier
Aircraft
N173DN
Make and model
Boeing 767332
Aircraft serial
24800
Aircraft time
54,693 hours, 8,537 cycles
Engine
Pwa PW4060
Engine time
47,277 hours, 7,652 cycles
Part
Shutoff Valve
Part number
77328810
Condition
Malfunctioned
Location
Bleed Air
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

LEFT DUCT PRESS FLUCTUATED PLUS/MINUS 15 PSI DURING CLIMBOUT. RETURNED TO JFK. REPLACED PRV CONTROLLER AND PRSOV VLV PER M/M. T/O PWR RUN PER PFHB, ALL NORMAL.