Service difficulty report · Support Channel · Boeing 7377H4

Difficulty date
March 22, 2021
Submitted
April 13, 2021
Operation
Air carrier
Aircraft
N290WN
Make and model
Boeing 7377H4
Aircraft serial
36632
Aircraft time
45,381 hours, 27,088 cycles
Part
Support Channel
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

INTERCOSTAL BETWEEN BS 270 LATERAL BEAM 259.5 BULKHEAD FLANGE AT WL 208.1 BL0 HAS LIGHT CORROSION AROUND (4) NUTPLATES / REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS PER SRM 53-10-51-1A-1. MATERIAL REMOVED IS 0.008. SUPPORT CHANNEL MPN IS 141A5211-1. INSTALLED NEW SUPPORT CHANNEL 259.5 - 270 IAW SRM 53-10-51-1A-1.

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