Service difficulty report · Hydraulic Line · Boeing 737824

Difficulty date
September 19, 2026
Submitted
September 21, 2026
Operation
Air carrier
Aircraft
N78501
Make and model
Boeing 737824
Aircraft serial
31602
Aircraft time
60,909 hours, 23,334 cycles
Part
Hydraulic Line
Condition
Leaking
Location
Zone 500
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

HYDRAULIC FLUID STREAKS AND SHIMMERY FLUID PRESENT ON LT WING LOWER SIDE OF FLAPS AND FLAP SEALS BETWEEN OUTERMOST PYLON COVER AND MIDDLE PYLON COVER INSPECTED SUSPECTED AREA. FOUND MOIST LINES/ AND HYDRAULIC SMELL. UNABALE PINT POINT SUSPECTED LEAK. CLEANED LINES AND ACTUATORS IN AREA SUSPECTED OF LEAKAGE THEN ACTUATED THE FLAP AND SLAT SYS THROUGH THREE CYCLES. REINSPECTION REVEALED NO ACTIVE LEAK ON LINES OR CONNECTORS. REF AMM 29-00-00-790-801-C4. A/C CLEAR FOR CONTINUED SERVICE.