Service difficulty report · Shutoff Valve · Boeing 737890

Difficulty date
December 16, 2014
Submitted
December 16, 2014
Operation
Air carrier
Aircraft
N519AS
Make and model
Boeing 737890
Aircraft serial
36482
Aircraft time
22,459 hours, 6,728 cycles
Part
Shutoff Valve
Part number
1074926
Part serial
11982
Condition
Failed
Location
Nr 2 Engine
Part time
22,556 hours, 6,747 cycles
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

DURING TAKEOFF, DUCT SPLIT NOTED PALT N1, N2 LT DUCT, RT DUCT SAT 2000 88.9 95.1 43-26 +5 302 KTS, 10000 91.4 96.1 45-27-0 M.79, 25000 96.4 97.3 45 30 -31 M.77, 37000 88.8 90.8 45-33-62. ACFT GROUNDED. PERFORMED NR 2 ENGINE BLEED AIR SYS HEALTH CHECK IAW T/C NG-36WC-00001. FOUND NR 2 ENGINE BAR AND PRSOV BAD. REPLACED AND OPS CHECKED NORMAL PRSOV IAW AMM 36-11-4 AND BLEED AIR REGULATOR REF AMM 36-11-03. ACCOMPLISHED NR 2 ENGINE BLEED AIR CROSSOVER TEST AND OPS CHECKED NORMAL REF AMM 36-11-00.