Service difficulty report · Skin · Boeing 777223

Difficulty date
October 6, 2021
Submitted
October 27, 2021
Operation
Air carrier
Aircraft
N791AN
Make and model
Boeing 777223
Aircraft serial
30254
Aircraft time
80,585 hours, 10,479 cycles
Part
Skin
Condition
Corroded
Location
Zone 100 - Fuse
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

AIRCRAFT IN BASE MAINTENANCE: CORROSION OF FUSELAGE SKIN NEAR LAVATORY TANK VENT TUBE AT STA 1969 BETWEEN STR 35L AND STR 36L, MEASURING L=5.0 IN, W=4.5 IN, D=0.12 IN. ACCOMPLISHED PERMANENT REINFORCING DOUBLER REPAIR IAW SRM 53-70-01-2R-1.