Service difficulty report · Skin · Boeing 747451

Difficulty date
January 31, 2017
Submitted
February 3, 2017
Operation
Air carrier
Aircraft
N666US
Make and model
Boeing 747451
Aircraft serial
23821
Aircraft time
113,649 hours, 14,107 cycles
Part
Skin
Condition
Delaminated
Location
Lt Wing Te Flap
Stage of operation
IN
How discovered
9
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

LT WING OTBD T/E FLAP AFT FLAP TOP SKIN FOUND THREE DELAMINATION ONE DELAMINATION APPROX 3.5X2 INCH FROM T/E 2 INCH AND FROM INBD 176 INCH ONE DELAMINATION APPROX 5X2 INCH FROM T/E 2 INCH AND FROM OTBD 37 INCH THE OTHER DELAMINATION APPROX 2X2 INCH FROM T/E 1 INCH AND FROM OTBD 91 INCH. REPAIRED THE AFT FLAP TOP SKIN DELAMINATION AREA OF LT WING O/B T/E FLAP LOCATION: ONE IS FROM T/E 2 INCH AND FROM I/B 176 INCH ONE IS FROM T/E 2 INCH AND FROM O/B 37 INCH ONE IS FROM T/E 1 INCH AND FROM O/B 91 INCH IAW B747-400 SRM 51-70-07 PARA. 5. A(1) FIG. 5 REV. 98 JOB COMPLETED. (2874905)