Service difficulty report · Spar · Boeing 747428F

Difficulty date
February 1, 2019
Submitted
March 4, 2019
Operation
Air carrier
Aircraft
N580UP
Make and model
Boeing 747428F
Aircraft serial
25632
Aircraft time
101,727 hours, 17,398 cycles
Part
Spar
Part number
65B0352455
Condition
Corroded
Location
Lt 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

INSPECTION TYPE:D2 CORROSION ON EXTERNAL LWR SURFACE OF LOWER CHORD (P/N:65B03524-55) ON LT HST AUX SPAR STA STAB 380-STAB 385. REPAIR IAW SRM 55-10-10-1A-1 ALLOWABLE DAMAGE DETAIL II REV.85.00.