Service difficulty report · Control Valve · Boeing 737824

Difficulty date
November 11, 2025
Submitted
November 13, 2025
Operation
Air carrier
Aircraft
N17229
Make and model
Boeing 737824
Aircraft serial
28793
Aircraft time
80,003 hours, 29,778 cycles
Part
Control Valve
Condition
Out Of Limits
Location
Precooler
Stage of operation
CR
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

RIGHT BLEED TRIP OFF LIGHT PERFORMED PNUEMATIC HEALTH CHECK PER MM 36-11-00-700-801. FOUND PRSOV,BAR, AND PRECOOLER CONTROL VALVE OUT OF LIMITS. REMOVED AND REPLACED BAR PER MM 36-11-03. REMOVED AND REPLACED PSROV PER MM 36-11-04. R/R PRECOOLER CONTROL VALVE PER MM PER MM 36-12-02. PEFORMED CROSSOVER BLEED SCHEDULE PER MM 36-11-00. BLEED SCHEDULE NORMAL DURING ALL SETTINGS.