Service difficulty report · Skin · Boeing 777222

Difficulty date
August 1, 2006
Submitted
August 8, 2006
Operation
Air carrier
Aircraft
N791UA
Make and model
Boeing 777222
Aircraft serial
26933
Aircraft time
39,221 hours, 6,040 cycles
Engine
Pwa PW4090
Part
Skin
Condition
Damaged
Location
Bs 670 S26-27l
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

SKIN FWD OF NR 2L DOOR STA 670 BETWEEN STR 26L- 27L SMALL DENT WITH A GOUGE IN THE CENTER APPROX 2.0 INCH IN DIA AND .050 INCH DEEP. BLENDING FOR CLEANUP REMOVED 17 PERCENT OF THE ORIGINAL .070 SKIN THICKNESS. ANOTHER DENT EXISTS APPROX 6 INCHES FROM REWORKED AREA. REPAIRED DAMGED STRUCTURE. CUT OUT TWO DENTS. HFEC INSPECTED. NO CRACK FOUND AND HFEC INSPECT. CONFIRM CRACK FREE.MADE THE CORNER RADIUS OF THE CUTS A MIN OF 0.5 INCH, COMPLETED THE REPAIR. APPLIED TWO LAYERS OF BMS 10-79 TYPE 3 PRIMER TO THE REPAIR PARTS. INSTALLED REPAIR PARTS WITH BMS 5-95 SEALANT TO MATING SURFACES. SUSPECT CONTACT WITH GROUND EQUIPMENT.