Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
March 11, 2026
Submitted
April 7, 2026
Operation
Air carrier
Aircraft
N8530W
Make and model
Boeing 7378H4
Aircraft serial
63592
Aircraft time
29,702 hours, 14,963 cycles
Part
Intercostal
Condition
Cracked
Location
Zone 500
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

LEFT WING DEFLECTION RIB INTERCOSTAL CRACKED AT O/B UPPER FASTENER HOLE<[01] REMOVED DEFLECTION RIB INTERCOSTAL PER SRM 51-40-02;[02] DRILLED NEW INTERCOSTAL PER SRM 51-40-05 AND INSTALLED NEW INTERCOSTAL PER SRM 41-40-02;[03] INSPECTED C/A 1. LANCE BEARD (TECHNICIAN); REMOVED DEFLECTION RIB INTERCOSTAL PER SRM 51-40-02. C/A 2. STEVEN POULIN (TECHNICIAN); DRILLED NEW INTERCOSTAL PER SRM 51-40-05 AND INSTALLED NEW INTERCOSTAL PER SRM 41-40-02;[04] CLEANED AND RESTORED FINISHED PER AMM 51-21-95;[05] REF FOR RESTORED FINISHED AMM 51-21-99;[06] CW INSP OF RESTORED FINISHED;[07] VERIFIED C/A 1-6 ARE COMPLIED WITH.

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