Service difficulty report · Warning Light · Boeing 737724

Difficulty date
September 17, 2024
Submitted
September 20, 2024
Operation
Air carrier
Aircraft
N16732
Make and model
Boeing 737724
Aircraft serial
28948
Aircraft time
77,721 hours, 28,601 cycles
Part
Warning Light
Condition
False Indication
Location
Bleed System
Stage of operation
CL
How discovered
O
Nature of condition
N
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 CLIMB LIGHT NO. 2 LOCKED LP. MUST FIX. SPOKE WITH CREW LIGHT CAME ON DURING TAKEOFF REMAINED ON DURING ENTIRE FLIGHT NO OTHER ABNORMALITIES NOTED POSSIBLE REF FIM PROCEDURE 36-10 TASK 801. AFTER REVIEWING MULTIPLE FLIGHT REPORTS FROM AVIATAR DURING TAKE OFF DETERMINED AIRCRAFT WAS IN A NO BLEED TAKE OFF CONFIGURATION. ENGINE BLEED TURNED ON DURING CLIMB APU REPORT SHUT DOWN SHORTLY AFTER. ACCORDING TO FIM 36-10 TASK 801 PARA A.(2)(A) THESE CONDITIONS CAN CAUSE BLEED TRIP OFF LIGHT TO COME ON. IF BLEED TRIP OFF LIGHT CAN BE RESET NO MX ACTION NECESSARY. TOMC UPDATE: REQUIRES ENGINE RUN TO CONFIRM ENGINE BLEED OPERATION. LOCKING LOG FOR CORRECTIVE ACTION AND CLEARING DISCREPANCY UNLOCKED LOG TO CLEAR DISCREPANCY LOG UNLOCKED PERFORMED HIGH POWER ENGINE RUN TO CHECK PNEUMATIC DUCT PRESSURES AT VARIOUS N1 PERCENTAGE REF AMM 71-00-00. FOUND DUCT PRESSURES OF BOTH ENGINES WITHIN PARAMETERS AT RELATIVE N1 STAGES REF FIM 36-10 FIG 305. CLEARING THIS LOG PAGE AFTER TOMC UNLOCKED LOG PAGE