Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
October 8, 2022
Submitted
November 1, 2022
Operation
Air carrier
Aircraft
N203WN
Make and model
Boeing 7377H4
Aircraft serial
32483
Aircraft time
59,685 hours, 35,389 cycles
Part
Intercostal
Condition
Cracked
Location
Zn 900 Lav/Galle
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 FLOOR INTERCOSTAL BS 380-400 CRACKED AT 2ND FROM AFT SCREW HOLE RBL 9. 8-74 / [01] REMOVED UPPER ANGLE FROM INSTERCOSTAL AT STA 380-400; RBL 9 AS PER B 737-700 SRM 51-40-02-0G-0.;[02] RECEIVED; LOCATED AND DRILLED NEW UPPER ANGLE FROM INSTERCOSTAL AT STA 380-400; RBL 9 AS PER B 737-700 SRM 51-40-05-0G-0.;[03] VERIFIED 1-2. OK TO INSTALL NEW ANGLE.;[04] INSTALLED NEW UPPER ANGLE ON INTERCOSTAL AT STA 380-400; RBL 9 AS PER B 737-700 SRM 51-40-02-0G-0; DWG # 143A5400.;[05] REMOVED AND REPLACED UPPER ANGLE ON INTERCOSTAL AT STA 380-400; RBL 9 AS PER B 737-700 SRM 51-40-02-0G-0; DWG # 143A5400.;[06] VERIFIED 4. FINAL 5.

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