Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
September 7, 2023
Submitted
October 6, 2023
Operation
Air carrier
Aircraft
N906WN
Make and model
Boeing 7377H4
Aircraft serial
36887
Aircraft time
51,081 hours, 29,796 cycles
Part
Intercostal
Part number
UNKNOWN
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

CABIN FWD WET AREA HAS A CRACKED INTERCOSTAL AT BS 328+14; RBL 19; WL 208 (MARKED) BS 328+14 RBL 19 IS INCORRECT; BS 312-328 RBL 31 IS CORRECT<[01] REMOVED AND INSTALLED NEW INTERCOSTAL P/N 141A5410U12 AT FLOOR STRUCTURE BETWEEN BS 312 TO BS 328 RBL 31 PER SRM 51-40-02 AND DWG 141A5400;[02] VERIFIED MEASUREMENT TABLE.

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