Service difficulty report · Beam · Boeing 7377H4

Difficulty date
August 11, 2023
Submitted
September 11, 2023
Operation
Air carrier
Aircraft
N912WN
Make and model
Boeing 7377H4
Aircraft serial
36621
Aircraft time
50,939 hours, 30,749 cycles
Part
Beam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
9
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

WING CENTER SECTION INNER CHORD CREASE BEAM HAS CORROSION AT BS 616+22; LBL 63; WL 207<[01] UPDATE MEASUREMENTS AND STEPS 1-3;[02] REMOVED AND REPLACED WING CENTER SECTIN INNER CHORD CREASE BEAM AT 616+22; LBL 63; WL 207. IAW SRM 51-40-02-0G-0 AND BOEING DWG 144A5901 ID: 47; BOEING DWG 144A5901 ID: 42 AND BOEING DWG 144A5901 ID: 0048 REV: A.;[03] VERIFIED MEASUREMENTS TABLE AND CORRECTIVE ACTION 2. CARD COMPLETE

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