Service difficulty report · Shutoff Valve · Boeing 767277

Difficulty date
March 20, 2016
Submitted
March 23, 2016
Operation
Air carrier
Aircraft
N767MW
Make and model
Boeing 767277
Aircraft serial
22694
Aircraft time
54,117 hours, 37,688 cycles
Part
Shutoff Valve
Part number
8021571
Part serial
870823
Condition
Malfunctioned
Location
Bleed Air Sys
Stage of operation
UK
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

LOG PAGE 709442 NR 5. LT ENG BLEED OFF LT EXTINGUISHED & WHEN SHOULD BE ILLUMINATED, IN SWITCH, & LOG PAGE 709442 NR 6 & LT ENG BLEED VLV EICAS MSG & LOG PAGE 709443 NR 7 & LT ENG BLEED LIGHT ILLUMINATED INTERMITTENTLY. R & R HIGH PRESS SOV. OPERATIONS CHECKED GOOD IAW AMM 36-23-11 & AMM 36-11-51.