Service difficulty report · Regulator · Boeing 737890

Difficulty date
June 2, 2013
Submitted
June 4, 2013
Operation
Air carrier
Aircraft
N579AS
Make and model
Boeing 737890
Aircraft serial
35187
Aircraft time
23,880 hours, 7,106 cycles
Part
Regulator
Part number
1074926
Part serial
9157
Condition
Failed
Location
Nr 2 Engine
Part time
27,945 hours, 8,501 cycles
Stage of operation
NR
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

ENGINE NR 2 BLEED DUCT PRESSURE WILL NOT DROP BELOW 20 PSI WITH ENGINE BLEED SWITCH IN OFF POSITION. ACFT GROUNDED. R & R BLEED AIR REGULATOR, REF AMM 36-11-03 LEAK OPS CHECK GOOD REF AMM 36-11-03 AND 71-00-00.