Service difficulty report · O-Ring · Cessna 750

Difficulty date
November 26, 2012
Submitted
November 28, 2012
Operation
Air carrier
Aircraft
N922QS
Make and model
Cessna 750
Aircraft serial
7500293
Aircraft time
3,481 hours, 2,117 cycles
Part
O-Ring
Part number
NAS16124
Condition
Leaking
Location
Mlg
Stage of operation
DE
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

DURING DECENT, CREW RECEIVED AN AMBER CAS MESSAGE: HYD LEVEL LOW A, HYD SHOWED 16 PERCENT. FOLLOWED EMERGENCY CHECKLIST AND MADE A SAFE LANDING, STOPPING THE ACFT ON THE RUNWAY USING THE EMERGENCY BRAKE. DURING POST FLIGHT INSPECTION, FOUND FRESH HYD FLUID ON THE BELLY OF THE ACFT AS WELL AS LEAKING FROM WICKS ON THE FORWARD RT SIDE FUSELAGE, EMERGENCY PNEUMATIC BRAKE AND GEAR RELIEF VENT. ALL TIRES APPEAR TO HAVE FLUID ON THEM. REPLACED TRANSDUCER O-RING IAW MM 29-30-01. SYS OPS & LEAK CHECKED GOOD. SERVICED HYD A SIDE RESERVOIR TO FULL IAW MM 12-10-15. C/W GEAR ACCUMULATOR RESET & BLEED PROCEEDURE IAW MM 12-10-36. BLED BRAKE SYS IAW MM 32-42-00. NO FURTHER DEFECTS NOTED.

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