SDR SWAA2020032442665

Service difficulty report · Intercostal · Boeing 7377BX

Difficulty date: February 25, 2020
Submitted: March 24, 2020
Operation: Air carrier
Aircraft: N552WN
Make and model: Boeing 7377BX
Aircraft serial: 30744
Aircraft time: 59,169 hours, 33,658 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 146A8320
Condition: Corroded
Location: Fuselage
Stage of operation: IN
How discovered: V
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

***CORROSION*** ON INTERCOSTAL AT ACB BS787 - BS794 RBL23 WL157. REPLACED INTERCOSTAL AT ACB BS 787-794 RBL 23 WL 157 AS PER SRM 51-40-02-0G-0 AND DRAWING # 146A8320 I.D 0008, THE REMOVED PART WAS EVALUATED AND FOUND TO BE OUT OF LIMITS DUE TO NO HAVE ALLOWABLE DAMAGE ON SRM, PART REPAIRABLE BY REPLACEMENT.

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