Service difficulty report · Bleed Valve · Boeing 737824

Difficulty date
May 6, 2025
Submitted
May 9, 2025
Operation
Air carrier
Aircraft
N87513
Make and model
Boeing 737824
Aircraft serial
31621
Aircraft time
53,325 hours, 18,955 cycles
Engine
Cfmint CFM567B263
Part
Bleed Valve
Part number
32144464
Part serial
13122
Condition
Faulty
Location
Nr 2 Engine
Part time
33,324 hours, 6,866 cycles
Stage of operation
CL
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

BLEED TRIP OFF LIGHT COMES ON DURING TAKEOFF LIGHT NO. 2 BLEED TRIP OFF ON DEPARTURE NO RESET CREW REPORTED #2E BLEED TRIP LIGHT CAME ON DOING "NO ENGINE BLEED TAKEOFF". CREW REPORTS TRYINT TO RESET BLEED TRIP WITH NO SUCCESS. CREW REPORTED NO BLEED SPLIT OR OTHER INDICATIONS. ISO VALVE WAS IN THE AUTO POSSITION WHEN BLEED TRIP CAME ON. UPPON MX ARRIVAL TO AIRCRAFT #2 E BLEED TRIP LIGHT IS STILL ILLUMINATED. PER FIM 36-10 TASK 809 SUSPECT HIGH STAGE VALVE TO BE AT FAULT. POSSIBLE PART, HIGH STAGE VALVE, PN 3214446-4, M&E 29-3611-9-0002. NIS ORD. R&R HIGH STAGE VALVE ON #2 ENG. REF AMM TASK 36-11-06-400-801 UP TO STEP G. INSTALATION TEST. NEEDS POWER RUN FOR BLEED SHIFT. VERIFY BLEED TRIP OFF LIGHT STAYS OFF. PERFORMED BLEED SHIFT OPERATIONAL TEST OF RIGHT ENGINE DUE TO HIGH STAGE VALVE REPLACMENT REF AMM 36-11-00. ALL BLEED PRESSURES WITHIN RANGE. NO BLEED TRIP DURING TESTING.