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
Horiz Stab
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 AT HST RT LOWER EXTERNAL SKIN, REAR SPAR STAB STATION 255. REMOVE DAMAGE & MEASURE REWORK AREA LENGTH=1" & WIDTH=0.5" & DEPTH=0.007" IS WITHIN ALLOWABLE LIMITS IAW SRM 55-10-01-1A-1. ALLOWABLE DAMAGE 1 REV 32 & FREE OF CORROSION, DETAIL DATA IAW JOB CARD ATTACHING SHEET NR 0069640. PFM REWORKED AREA PROTECTIVE TREATMENT IAW SRM 51-20-01 REV 32. CONDITION CHECKED NORMAL & JOB COMPLETED.