SDR AALA20090929ORD01

Service difficulty report · Actuator · Boeing 777223

Difficulty date: September 29, 2009
Submitted: October 6, 2009
Operation: Air carrier
Aircraft: N794AN
Make and model: Boeing 777223
Aircraft serial: 30256
Aircraft time: 35,546 hours, 4,958 cycles
System (JASC): 2752 · Trailing Edge Flap Actuator
Part: Actuator
Condition: Leaking
Location: Flaperon
Stage of operation: CL
How discovered: O
Nature of condition: K
Precautionary procedure: A

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

What was found

SHORTLY AFTER TAKEOFF, LOST RIGHT HYDRAULIC SYSTEM QUANTITY. RETURNED ORD, LANDED UNEVENTFULLY AND TAXIED TO GATE UNDER OWN POWER. UNDER INITIAL EXAMINATION BY GATE MECHANICS, FOUND FLUID LEAK IN AREA OF LEFT FLAPERON. FOUND LEFT OUTBOARD FLAPERON ACTUATOR FAILED AT SOLENOID BOLTS. REPLACED THE FLAPERON ACTUATOR, RIGHT ENGINE PUMP, ALL ASSOCIATED FILTERS AND FLUSHED SYSTEM.