Service difficulty report · Seal · Boeing 737924

Difficulty date
March 24, 2026
Submitted
March 27, 2026
Operation
Air carrier
Aircraft
N37409
Make and model
Boeing 737924
Aircraft serial
30126
Aircraft time
65,441 hours, 27,393 cycles
Part
Seal
Condition
Misinstalled
Location
Precooler
Part time
3,184 hours, 1,455 cycles
Stage of operation
TO
How discovered
O
Nature of condition
W, J
Precautionary procedure
C

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

What was found

L BLEED TRIP ON TAKEOFF ABORTED APPROX 40 KNOTS PERFORMED (BLEED TRIP OFF LIGHT ON )- FAULT ISOLATION REFERENCE: 36-10 TASK 809, FOLLOWED UP TO STEP F 4, FOUND KISS SEAL INSTALLED INCORRECTLY. CALLED TOMC PARTS ON ORDER REMOVED AND REPLACED KISS SEAL IN REF AMM 36-12-02, PERFORMED LEAK CHECK IN REF AMM TASK 36-11-00-700-802 FOUND PRECOOLER CONTROL VALVE INOP