Service difficulty report · Limit Switch · Boeing 74744AF

Difficulty date
April 26, 2021
Submitted
April 28, 2021
Operation
Air carrier
Aircraft
N581UP
Make and model
Boeing 74744AF
Aircraft serial
25866
Aircraft time
117,665 hours, 19,606 cycles
Part
Limit Switch
Part number
35EN234
Condition
Out Of Rig
Location
Stab Trim
Stage of operation
CL
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

EMERGENCY DECLARED - LANDED UNEVENTFULLY** ARFF ADVISED * NOTOC DELIVERED** ON CLIMB OUT EICAS MESSAGE STAB TRIM 2 & STAB TRIM 3. A/P DISCONNECTED UNABLE TO USE YOLK TRIM ALT TRIM WORKED.FOUND STAB TRIM ELEVATOR CONTROL ACUATED LIMIT SWITCHES OUT OF RIG. CHANGED 5814 & 5815 SWITCHES AND RIGGED IAW AMM 27-41-07-501 OPS CHECK GOOD AUTOMATIC STAB TRIM TEST OPS CHECK GOOD IAW AMM 22-10-00-715-165

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