Service difficulty report · Regulator · Boeing 737890

Difficulty date
July 13, 2023
Submitted
July 15, 2023
Operation
Air carrier
Aircraft
N583AS
Make and model
Boeing 737890
Aircraft serial
35681
Aircraft time
55,901 hours, 16,355 cycles
Part
Regulator
Part number
1074926
Part serial
13139
Condition
Faulty
Location
#1 Engine
Part time
44,267 hours, 12,959 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

#1 ENG. BLEED PRESSURE LOW AT IDLE. GROUNDED - YES. REPLACED BLEED AIR REGULATOR PER MM 36-11-03-400.REPLACED PRSOV FOUND TO BE LEAKING, PER MM 36-11-04-400-801.LEAK & OPS CHECK GOOD.