Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
November 23, 2024
Submitted
December 16, 2024
Operation
Air carrier
Aircraft
N277WN
Make and model
Boeing 7377H4
Aircraft serial
32531
Aircraft time
57,239 hours, 34,524 cycles
Part
Intercostal
Condition
Cracked
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

ACB; DURIN OK TO INSTALL WAS FOUND A CRACK ON INTERCOSTAL BS 947 RBL 25 BETWEEN S23R AND S24R.<[01] REMOVED AND REPLACED INTERCOSTAL BS927 TO BS947 RBL25 WL 164 BETWEEN STR23R AND STR24R IAW SRM 51-40-02-0G-0 AND DWG 147A7500 REV C.;[02] VERIFIED COMPLETION CORRECTIVE ACTION 1 AND MEASUREMENT TABLE.

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