Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
March 9, 2020
Submitted
March 18, 2020
Operation
Air carrier
Aircraft
N8317M
Make and model
Boeing 7378H4
Aircraft serial
36992
Aircraft time
26,166 hours, 11,458 cycles
Part
Intercostal
Part number
146A3426
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

AFT CARGO COMPARTMENT STA 727+8.50" BETWEEN STR 28L AND 28R WL 148.8 INTERCOSTAL WEB IS CORRODED ON FWD SIDE AROUND FASTENERS AS MARKED EVALUATED CORROSION ON AFT CARGO COMPARTMENT STA / 727+8.50" BETWEEN STR 28L AND 28R WL 148.8 / INTERCOSTAL WEB. AROUND FASTENERS. ORIGINAL / THICKNESS .032" LOSS .005" .027" REMAINING. OUT OF / LIMITS I/A/W 737-800 SRM 53-00-53-1A-2 BACKSHOP / FABRICATED NEW WEB #146A3426-7 WORK ORDER / #40583-1600-0001 I/A/W BOEING DWG 146A3426 REV- / DRILLED AND SHAPED WEB I/A/W BOEING DWG 146A3426 / REV. INSTALLED NEW WEB I/A/W BOEING DWG 146A0061 / REV. A AND 737-800 SRM 51-40-02-0G-0 APPLIED P/N / C.I.C TO AREA I/A/W 737 AMM 51-21-91-620-802 / 146A3426-7

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