Service difficulty report · Pressure Switch · Airbus A300F4605R

Difficulty date
July 3, 2026
Submitted
July 3, 2026
Operation
Air carrier
Aircraft
N690FE
Make and model
Airbus A300F4605R
Aircraft serial
876
Aircraft time
23,180 hours, 13,586 cycles
Part
Pressure Switch
Condition
Leaking
Location
Hyd Sys
Stage of operation
TO
How discovered
O
Nature of condition
K, J
Precautionary procedure
C

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

What was found

ON TAKEOFF ROLL AT ABOUT 60KTS ECAM ALERT OF GREEN HYDRAULIC SYSTEM LOW PRESSURE. WE GOT TWO ECAM WARNINGS, ONE RIGHT AFTER THE OTHER. RTO, AUTO BRAKES DID NOT ENGAGE BEC OF LOW SPEED. TSM 29-32-00 FIG 105 AMM 29-14-00-03 JRH CH5 WITH REF ABOVE RAN NR 1 AND 2 ENGINES. SYSTEM PRESSURE WAS NORMAL. GREEN HYDRAULIC SYSTEM QUANTITY WAS ABOVE TOP HAT. CYCLED ALL FLT CONTROLS MULTIPLE TIMES & SYSTEM BLED DOWN TO THE VERY BOTTOM OF THE TOP HAT. VERIFIED THAT THE RESERVOIR HEAD PRESSURE AND ACCUMULATOR PRESSURES WERE WITHIN LIMITS. NEXT STEP PER TSM 29-32-00 FIG 105. TO CHANGE HP MANIFOLD PRESSURE-SWITCH (30WW) AMM 31-53-51-04 AMM 12-12-29-00 TSM 29-32-00 FIG 105 JRH CH 5 WITH REFS ABOVE. REMOVED AND REPLACED GREEN SYS HP MANIFOLD PRESSURE-SWITCH (30WW). OPS & LEAK CHKD GOOD. RAN NR 1 AND 2 ENGINES AGAIN AND CYCLED FLIGHT CONTROLS MULTIPLE TIMES. HYDRAULIC QTY STAYED AT THE BOTTOM OF TOP HAT. NO FAULTS NOTED. SERVICED GREEN SYSTEM HYD FLUID TO MIDDLE OF TOP HAT. ACFT OK TO CONTINUE.

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