Service difficulty report · Rib · Boeing 7377H4

Difficulty date
April 13, 2024
Submitted
May 9, 2024
Operation
Air carrier
Aircraft
N923WN
Make and model
Boeing 7377H4
Aircraft serial
36627
Aircraft time
52,310 hours, 31,812 cycles
Part
Rib
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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

DORSAL FIN PANEL 321A #1 RIB INTERNAL AREA HAS CRACKER. DORSAL FIN (PANEL 321A) #1 RIB (INTERNAL) CRACKED.<[01] REMOVED AND REPLACED CRACK RIB #1 AT DORSAL FIN 321A; REF. SRM 51-40-02-0G-0 AND DRAWING 174A1003;[02] VERIFIED REMOVED AND REPLACED CRACK RIB #1 AT DORSAL FIN 321A.

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