SDR UIEA2013031300128

Service difficulty report · Actuator · Boeing 7474H6

Difficulty date: March 13, 2013
Submitted: March 14, 2013
Operation: Air carrier
Aircraft: N718BA
Make and model: Boeing 7474H6
Aircraft serial: 27042
Aircraft time: 62,188 hours, 8,352 cycles
System (JASC): 3232 · Landing Gear Door Actuator
Part: Actuator
Part number: 1U11986
Part serial: 0770
Condition: Failed
Location: Nlg Door
Stage of operation: CL
How discovered: O
Nature of condition: K, J
Precautionary procedure: J, A

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

What was found

AFTER TAKEOFF, DURING GEAR RETRACTION A LOUD BANG WAS HEARD AND A HEAVY VIBRATION WAS FELT COMING FROM THE NOSE GEAR AREA, FOLLOWED BY A TOTAL LOSS OF HYD SYS NR 1. ON INVESTIGATION, NOSE GEAR DOOR ACTUATOR WAS FOUND TO BE FAILED CAUSING TOTAL FLUID LOSS. NOSE DOOR ACTUATOR WAS REPLACED IAW AMM 32-34-14.

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