Service difficulty report · Aileron · Boeing 74787UF

Difficulty date
July 4, 2019
Submitted
July 5, 2019
Operation
Air carrier
Aircraft
N856GT
Make and model
Boeing 74787UF
Aircraft serial
37561
Aircraft time
31,964 hours, 5,370 cycles
System (JASC)
5751 · Ailerons
Part
Aileron
Condition
Delaminated
Location
Lt Aileron
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

FOUND LT WING OTBD AILERON DELAMINATION. (<P>CUT OUT THE DELAMINATION MATERIAL AND CLEANED. MEASURED THE DAMAGED AREA (L = 2", W = 0.7", D = 4 PLIES 0), (FROM AFT EDGE .69 FROM INBD EDGE, WBL 918), BOND PLIES (L = 8", W = 5"). USED WET LAYUP WITH RESIN, CURED AT 200 DEG F FOR 240 MINUTES AND MAINTAINED MINIMUM VACUUM PRESSURE AT 32 IN/HG IAW SRM 57-60-01-2R-2. REFER TO SRM 51-70-04-2R-0 REV. 27. MADE AN ENTRY OF REWORK MOMENT ON THE ALUMINUM FOIL MOMENT MARKER. IAW SRM 51-60-01-0G-0 REV. 27, CHECK CONDITION WAS SATISFACTORY.</P>)

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