Service difficulty report · Shutoff Valve · Boeing 767424ER

Difficulty date
December 18, 2014
Submitted
December 18, 2014
Operation
Air carrier
Aircraft
N59053
Make and model
Boeing 767424ER
Aircraft serial
29448
Aircraft time
63,166 hours, 8,929 cycles
Part
Shutoff Valve
Part number
8253011
Condition
Failed
Location
Bleed Air Sys
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ON TAKEOFF ROLL, LT ENG BLEED OFF, EICAS MSG. AFTER DEPARTURE RAN QRH V LIST, LIGHT REMAINED ILLUMINATED. NOTICED RESIDUAL BLEED AIR OF 15 PSI ON LT SIDE WITH LT ENG BLEED OFF. ALSO LT BLEED HPSOV STATUS MSG. ACCOMPLISHED ASCTU BITE PROCEDURE IAW MM 36-23-00-501. LT HPSOV FAILED TO OPEN. REPLACED NR 1 ENG HPSOV IAW MM 36-11-07. ACCOMPLISHED ASCTU GND TEST, ALL NORMAL. STATUS MSG EXTINGUISHED. ACCOMPLISHED GND RUN IAW MM 71-00-00. ALL BLEED INDICATIONS NORMAL. ROTABLE PARTS CHANGE WAS INDICATED TT 1706868 SN OFF 04268 FAULT DATA, FAULT CODE 1 36-10240 FAULT CODE 2 1140, FAULT COMMENTS LT HPSOV BUTTERFLY SEAL FOUND DAMAGED AFTER REMOVAL. VLV ASSEMBLY HI OFF 64-3611-9-0007 4266 ON 64-3611-9-0007 5050.