Service difficulty report · Sense Line · Boeing 737724

Difficulty date
February 28, 2026
Submitted
March 3, 2026
Operation
Air carrier
Aircraft
N39726
Make and model
Boeing 737724
Aircraft serial
28796
Aircraft time
77,449 hours, 27,408 cycles
Engine
Cfmint CFM567B242
Part
Sense Line
Part number
1613581
Condition
Faulted
Location
Nr 2 Eng
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

FLIGHT CREW REPORTED NR 2 ENGINE BLEED SPIKED TO 76 PSI DURING TAKE OFF. AFTER SEVERAL MINUTES BLEED PSI ON NR 2 ENG CAME BACK DOWN TO NORMAL BUT AS ACFT KEPT CLIMBING BLEED SPIKED AGAIN. CHECKED DOWNLINE SENSE LINE FOR LEAKS. RELACED THE LINE. LEAK CHECKED OF REPLACED LINE IAW AIPC 36-11-51-02A, ITEM 25. OKAY.