Service difficulty report · Actuator · Boeing 7379

Difficulty date
November 24, 2024
Submitted
November 26, 2024
Operation
Air carrier
Aircraft
N17557
Make and model
Boeing 7379
Aircraft serial
67584
Aircraft time
5,669 hours, 1,872 cycles
Part
Actuator
Part number
273A22011
Part serial
TASV17858
Condition
Faulted
Location
Zone 700
Part time
5,652 hours, 1,868 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

RIGHT LDG GEAR DID NOT RETRACT. PERFORMED INITIAL INSPECTION OF RH GEAR UPLOCK,MAIN RETRACT ACTUATOR, HYDRAULIC LINES, WIRE HARNES AND STRUCTURES. FOUND NO OBVIOUS ISSUES OR FAULTS. DURING CREW DEBRIEF THEY SAID THAT THERE WAS NO AERODYNAMIC FEEL THAT THE RIGHT GEAR WAS NOT UP WHEN SELECTED TO THE UP POSITION EVEN THOUGH GEAR LIGHTS INDICATED THE RH MAIN GEAR WAS NEVER UP AND LOCKED. ADDING PICTURES OF BROKEN ACTUATOR & 8130 PARTS TRANSACTION ROTABLE PARTS CHANGE WAS INDICATED - TT # 1595025 SN OFF 7858 ACTUATOR, MLG, OFF 29-3232-9-9001 7858 ON 29-3232-9-9001 4971 OBTAINED OK TO INSTALL AND INSTALLED RH MLG DOWNLOCK ACTUATOR PER AMM 32-32-51-400-801 UP TO AND INCLUDING 3.F(8) APPROVED OK TO INSTALL AND VERIFIED INSTALLATION OF RH MLG DOWNLOCK ACTUATOR PER AMM 32-32-51-400-801 UP TO AND INCLUDING 3.F(8) 347273 COMPLETED INSTALLATION OF R/H MLG DOWNLOCK ACTUATOR PER AMM 32-32-51-400-801. OPS CHECK AND LEAK CHECK GOOD. VERIFIED,COMPLETED INSTALLATION OF R/H MLG DOWNLOCK ACTUATOR PER AMM 32-32-51-400-801. OPS CHECK AND LEAK CHECK GOOD.

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