Service difficulty report · Pdu · Boeing 74747UF

Difficulty date
March 24, 2017
Submitted
March 27, 2017
Operation
Air carrier
Aircraft
N499MC
Make and model
Boeing 74747UF
Aircraft serial
29260
Aircraft time
70,623 hours, 11,905 cycles
Part
Pdu
Part number
1267629
Part serial
11907
Condition
Failed
Location
Left
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

FUNCTIONAL FAIL OF THE ALTERNATE ELECTRICAL LEADING EDGE SYSTEM. REPLACED WIRE W4747-307-188.18Y.18B AND PERFORMED WIRE CONTINUITY CHECK AND RESULT WAS SATISFACTORY IAW WDM 27-81-32, REV 44. REPLACED THE LT L3 PDU, AND PERFORMED INSTALLATION TEST, THE RESULT WAS SATISFACTORY IAW SWPM 20-10-12 REV 64, AMM 27-81-03-002-001 REV 88, AND AMM 27-81-03-402-019 REV 88.

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