Service difficulty report · Skin Panel · Boeing 747422

Difficulty date
April 23, 2015
Submitted
April 23, 2015
Operation
Air carrier
Aircraft
N199UA
Make and model
Boeing 747422
Aircraft serial
28717
Aircraft time
70,838 hours, 8,112 cycles
Engine
Pwa PW4056
Part
Skin Panel
Condition
Worn
Location
Fuselage
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 ACCOMPLISHMENT OF EA 5300-01721 REV C OP 04, WEAR WAS FOUND ON THE PN 65B02706-80 SKIN PANEL AT APPROX STATION 2580, STRINGER 3R. THE BLEND OUT EXCEEDED ALLOWABLE LIMITS IN SRM 53-00-01. DAMAGE WAS CUT OUT & A REPAIR DOUBLER INSTALLED IAW ECRA 5330-04937. THE FUSE SKIN REPAIR INSTALLED IAW ECRA 5330-04937 AT STATION 2580, STRINGER 3R HAS RECEIVED 1ST & 2ND STAGE APPROVAL. PERMANENT REPAIR ACCOMPLISHED DURING HMV BY INSTALLING RUB STRIPS IAW EA 5331-01768. OK TO THIS CF IAW ECRA 5330-04937 REV A.