Service difficulty report · Keelbeam · Boeing 747400

Difficulty date
May 4, 2021
Submitted
May 7, 2021
Operation
Air carrier
Aircraft
N405KZ
Make and model
Boeing 747400
Aircraft serial
36132
Aircraft time
46,529 hours, 9,331 cycles
Part
Keelbeam
Condition
Corroded
Location
Bs 1441
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 - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1441, RBL 9(<P>BLENDED OUT THE DAMAGE AREA IAW SRM 51+10+02 REV 91. PERFORMED NDT INSP. REFER TO J/C ATTACHING SHEET NO. 0291711 AND DATA SHEET NO. 5767371-1. ACCOMPLISHED EI NO. T202153M. CONDITION CHECK NORMAL.</P>)

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