Service difficulty report · Skin · Boeing

Difficulty date
April 2, 2017
Submitted
January 14, 2022
Operation
Air carrier
Make and model
Boeing
Aircraft time
62,932 hours, 36,695 cycles
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

***CORROSION*** NOTED ON EXTERNAL FUSELAGE LOWER SKIN (BS 500B + 6 / RBL 9.5) COMMON TO BILGE DRAIN. / REMOVED CORROSION IN A 3.5' X 2.0' X .002' AREA AT BS 500B + 6 RBL 9.5 ON FUSELAGE SKIN EXTERNAL LOWER SURFACE COMMON TO BILGE DRAIN IAW SRM 53-00-01-1A-5 PAR 4.A. FIG 102 DET 'C'. APPLIED ALODINED IAW AMM 51-21-41-370-802; APPLIED PRIMER IAW AMM 51-21-72-370-802 AND APPLIED PAINT IAW AMM 51-21-73-370-801