Service difficulty report · Beam · Boeing 7378H4

Difficulty date
August 5, 2024
Submitted
August 28, 2024
Operation
Air carrier
Aircraft
N8646B
Make and model
Boeing 7378H4
Aircraft serial
36935
Aircraft time
33,915 hours, 16,273 cycles
Part
Beam
Condition
Cracked
Location
Zone 100
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

RH LOWER BEAM CHORD RBL 40.875 CRACKED AT AFT ANGLE RADIUS AT STA 658 APPROX 0.60'<[01] LOCATED; DRILLED AND DEBURRED REPLACEMENT CHORD PER SRM 51-40-05.;[02] INSTALLED NEW NUT PLATES ON REPLACEMENT CHORD PER SRM 51-40-02.;[03] VERIFIED C/A #1 AND #2.;[04] REMOVED AND REPLACED LOWER BEAM CORD PER SRM 51-40-02;[05] INSPECTION C/W;[06] REMOVED AND REPLACED LOWER BEAM CORD PER SRM 51-40-02. SEE ABOVE C/A'S FOR INDIVIDUAL SIGNOFFS. INSPECTION C/W.

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