SDR SWAA2021110319883

Service difficulty report · Skin · Boeing 737*

Difficulty date: September 17, 2021
Submitted: November 3, 2021
Operation: Air carrier
Aircraft: N793SA
Make and model: Boeing 737*
Aircraft serial: 27888
Aircraft time: 67,300 hours, 39,722 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Corroded
Location: 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

FWD CARGO DOOR LOWER AFT CUT-OUT EXTERNAL SKIN EVIDENCE OF SURFACE CORROSION AROUND FASTENER HOLES. CLEANED AND RE-INSPECTED AREA AT FWD CARGO COMP DOOR LOWER AFT CUTOUT EXTERNAL SKIN AND RE-INSPECTED NO CORROSION FOUND ONLY REST OF SEALANT AND PRIMER DAMAGED AS PER REF B737-700 SOPM 20-30-03 AND SRM 51-10-040G-0 APPLIED PRIMER ON AREAS AS PER REF B737-700 AMM 51-21-72-370-804 TO CORRECT SRM 51-10-04-0G-0 ON STEP 1 VERIFIED 1-3.