Service difficulty report · Skin · Boeing 777222

Difficulty date
November 29, 2009
Submitted
December 14, 2009
Operation
Air carrier
Aircraft
N780UA
Make and model
Boeing 777222
Aircraft serial
26944
Aircraft time
53,897 hours, 9,862 cycles
Engine
Pwa PW4077
Part
Skin
Condition
Damaged
Location
Bs 676
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 EVIDENCE OF SCRATCH AT STA. 676 AT W L 200.44 LT SIDE OF AC APPROX. 36IN. ABOVE CTR PITOT STATIC PORT. DAMAGE MEASURES 3.125 X 5.5 WITH A DEPTH OF .091. W OVER Y OK FOR DENT. SKIN THICKNESS AFTER GOUGE BLEND .058. METAL REMOVAL EXCEEDS 15 PERCENT OF .080 ORIGINAL THICKNESS. REPAIR TO BE ACCOMPLISHED IN 50 HOURS PER LIMITS IN SRM 53-00-01 PAGE 122, GRAPH AREA B, FOOTNOTE 2.^29NOV LAX INF- :DAMAGE LOCATED AT STA 683, 2 INCHES ABOVE STR28L. ACP NDT FOR MATERIAL LOSS, HFEC FOR CRACKS INTERNAL & EXTERNAL FOUND FUSELAGE SKIN WITH 0.013" LOSS, SMOOTH, CRACK FREE AND WITHIN LIMITS.