Service difficulty report · Flap Track · Boeing 7378Q8

Difficulty date
March 3, 2018
Submitted
March 5, 2018
Operation
Air carrier
Aircraft
N816SY
Make and model
Boeing 7378Q8
Aircraft serial
30637
Aircraft time
57,559 hours, 20,221 cycles
Part
Flap Track
Condition
Worn
Location
Te Flap
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING SPOILER INSPECTION FOUND RIGHT INBOARD AFT FLAP PROGRAMMING TRACK TO HAVE WEAR DAMAGE ON OUTER EDGES AND ON INNER SURFACE. DAMAGE IS PRESENT ON THE TOP EDGE OF THE PROGRAMMING TRACK EXTENDING ABOUT THREE INCHES. THE RUB BLOCK HAS WORN 1/16 OF AN INCH OF MATERIAL AWAY FROM THE TRACK AT ITS DEEPEST POINT AND IS NOT WITHIN REPAIRABLE LIMITS. THE BOTTOM OF THE TRACK HAS WEAR EXTENDING ABOUT FOUR INCHES AND HAS BEEN WORN AWAY BY THE RUB BLOCK THE SAME AS THE TOP. THE PROGRAMMING TRACK WILL REQUIRE REPLACEMENT. REMOVED INBOARD AFT FLAP TO FACILITATE REPAIR. INSTALLED NR 5 FLAP LINK. REPLACED NR 5 FLAP.

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