Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
June 24, 2024
Submitted
July 24, 2024
Operation
Air carrier
Aircraft
N252WN
Make and model
Boeing 7377H4
Aircraft serial
34973
Aircraft time
59,332 hours, 35,662 cycles
Part
Intercostal
Condition
Cracked
Location
Zone 200
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

CRACKED INTERCOSTAL AT FWD WET AREA BS290 BL0 WL208.<[01] REMOVED AND INSTALLED NEW INTERCOSTAL BETWEEN BS 277 TO BS 294 BL 0 WL 208 PER SRM 51-40-05 AND DWG 141A5400;[02] VERIFIED ACTION 1.;[03] UPDATED MEASUREMENTS;[04] REJECT: DURING VERIFICATION OF INTERCOSTAL INSTALLATION; STRAPS (3 E/A) WERE FOUND INSTALLED INCORRECTLY OVER INTERCOSTAL WITH NO SUPPORT OF TECHNICAL DOCUMENTATION. [TTG8Q00UD5X3];[05] REMOVED AND REPLACED NEW INTERCOSTAL BETWEEN BS 277 TO BS 294; BL 0; WL 208 PER SRM 51-40-02-0G-0; AND DWG 141A5400;[06] VERIFIED CORRECTIVE ACTION 5

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