Service difficulty report · Shutoff Valve · Boeing 767306

Difficulty date
September 27, 2020
Submitted
October 2, 2020
Operation
Air carrier
Aircraft
N1321A
Make and model
Boeing 767306
Aircraft serial
27957
Aircraft time
87,166 hours, 20,817 cycles
Part
Shutoff Valve
Part number
80217012
Part serial
910331
Condition
Abnormal
Location
Lt Engine
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

L ENGINE BLEED OFF ADVISORY MESSAGE AND L ENG HPSOV STATUS MESSAGE AFTER ENGINE START.(<P>TRANSFERRED TO DDG MDDR #135084 IAW 36-11-02-02, CAT C. T.I. # 1429Z.</P><P>01OCT, LP 121215, ITEM M5: FOUND HPC FAULTING ON AIR SUPPLY MODULE IAW 36-10 FT 833. REMOVED AND REPLACED HPC IAW 36-11-08, LEAK CHECK GOOD, REF ITEM #6 FOR R&R HPSOV AND OPS CHECK. S/N OFF: 960316, P/N OFF: 773289-15.</P><P>ITEM M6: DUE TO HISTORY REMOVED AND REPLACED HPSOV IAW 36-11-07, LEAK CHECK GOOD, NO FAULTS ON AIR SUPPLY BITE. PER MCC RAN ENGINES HIGH POWER IAW 71-00-00, NO FAULTS NOTED, SYSTEM NORMAL.