SDR SWAA2021072927867

Service difficulty report · Threshold · Boeing 7378H4

Difficulty date: February 17, 2020
Submitted: July 29, 2021
Operation: Air carrier
Aircraft: N8314L
Make and model: Boeing 7378H4
Aircraft serial: 36990
Aircraft time: 26,583 hours, 11,701 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Threshold
Condition: Corroded
Location: Aft Cargo
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

AFT CARGO COMPARTMENT THRESHOLD FORWARD OUTBOARD EDGE CORRODED. / REMOVED CORROSION IAW B737 SRM 51-10-02-0G-0. VERIFIED LIMITS FOUND TO BE 'OUT OF LIMITS' IAW B737 SRM 53-60-15-1A-1. FIG. 103 DETAIL D. VERIFIED NEW PART IAW BWG DRAWING NO: 146A8120 ID: 0024 REV:A . LOCATED & DRILLED IAW DWG 146A8120 REV:A. INSTALLED NUTPLATES IAW DWG 146A812 ID:0024 REV.A. APPLIED CIC IAW SOPM 20-41-05 PG2. INSTALLED SILL WEB PN 146A8123U25 IAW B737 SRM 51-40-02-0G-0 PG3 STEP 5 AND DRAWING 146A8340 SHEET 24 REV. A

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