SDR SWAA2022022880053

Service difficulty report · Frame · Boeing 7377H4

Difficulty date: December 18, 2018
Submitted: February 28, 2022
Operation: Air carrier
Aircraft: N744SW
Make and model: Boeing 7377H4
Aircraft serial: 29490
Aircraft time: 69,094 hours, 41,040 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Corroded
Location: Aft Fuselage
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

***CORROSION*** ON BS 1006 FRAME BL0 TO RBL 3 WL 186 / REMOVED CORROSION ON FUSELAGE FRAME AT STA. 1006 BL0 TO RBL3 WL 186. FOUND TO BE OUT OF LIMITS DUE TO CORROSION AROUND FASTENER HOLES IAW SRM 53-00-07-1A-1. REMOVED FRAME AT STA 1006 IAW SRM 51-40-02-0G-0. FORMED NEW FRAME PART WITH 7075-0 .063' CLAD SHEET LOT# 5040389 IAW SRM 51-30-01-0G-0 AND BOEING DWG 147A1006. INSTALLED NEW FRAME AT STA. 1006 IAW SRM 51-40-02-0G-0 AND BOEING DWG 147A0040

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