Service difficulty report · Transformer · Boeing 7572B7

Difficulty date
December 15, 2009
Submitted
December 16, 2009
Operation
Air carrier
Aircraft
N202UW
Make and model
Boeing 7572B7
Aircraft serial
27811
Part
Transformer
Condition
Faulty
Location
Te Flaps
Stage of operation
AP
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

CLT FLT 1728 EN ROUTE MCO TO CLT. DURING APPROACH, TRAILING EDGE AND LEADING EDGE FLAPS FAILED TO EXTEND NORMALLY. LEADING EDGE EXTENDED BY ALTERNATE. TRAILING EDGE FLAPS NEVER INDICATED MOVEMENT, EVEN AT ALTERNATE 15 FLAP GAUGE NEVER MOVED. TRAILING EDGE ALTERNATE POSITION RESULTED IN LEADING EDGE DISAGREE. REMOVED AND REPLACED TRANSFORMER T10040 28AC TRANSFER BUSS LEFT TRANSFORMER.

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