Service difficulty report · Rub Strip · Boeing 747422

Difficulty date
April 3, 2013
Submitted
April 5, 2013
Operation
Air carrier
Aircraft
N122UA
Make and model
Boeing 747422
Aircraft serial
29168
Aircraft time
57,250 hours, 6,685 cycles
Engine
Pwa PW4056
Part
Rub Strip
Condition
Damaged
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

MID AND AFT PHENOLIC RUB STRIP ON INBD SIDE OF RIGHT MID AND AFT FLAPS HAVE SECTIONS OF PHENOLIC MISSING AROUND THE EDGES. AFTER SEALANT CURES ON RIGHT AFT FLAP INBD RUB STRIP, REMOVE SAFETY WIRE & MICARTA STRIPS AND SECURE LOOSENED SCREWS ON ACCORDION SEAL. REMOVED SAFETY WIRE & MICARTA STRIPS AND SECURED SCREWS.