Service difficulty report · Skin · Boeing 747409

Difficulty date
December 6, 2015
Submitted
December 9, 2015
Operation
Air carrier
Aircraft
N780BA
Make and model
Boeing 747409
Aircraft serial
24310
Aircraft time
76,891 hours, 14,922 cycles
Part
Skin
Condition
Corroded
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

CORROSION SKIN, RIGHT FUSELAGE UPPER EXTERNAL SURFACE AT STATION 560 - 580 & STRINGER 132R - 133R. REMOVE DAMAGE & MEASURE REWORK AREA EXISTING. REWORKED REMAINING THICKNESS, LENGTH=2.5" & WIDTH=0.5" & DEPTH=0.004" & EXISTING THICKNESS = 0.125", IT IS WITHIN ALLOWABLE LIMITS IAW SRM 53-00-01-1A-1 ALLOWABLE DAMAGE REV 32 & SRM 53-20-01-01-1 IDENTIFICATION REV 32 & PERFORM AREA PROTECTIVE TREATMENT IAW SRM 51-20-01 REV 31. CONDITION CHECK NORMAL & JOB COMPLETED.