Service difficulty report · Intercostal · Boeing 7379

Difficulty date
October 2, 2026
Submitted
October 6, 2026
Operation
Air carrier
Aircraft
N77578
Make and model
Boeing 7379
Aircraft serial
67613
Aircraft time
10,020 hours, 3,263 cycles
Part
Intercostal
Part number
147A75802
Condition
Corroded
Location
Zone 200
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

SMALL SURFACE CORROSION AT INTERCOSTAL FWD I/B SIDE FASTENER HEAD BS 927 S-27R. CLEANED AREA AND REMOVED FASTENER AT FWD I/B STA. 927L-STA. 927R, FOUND NO EVIDENCE OF DAMAGED ONLY DAMAGED PRIMER AROUND FASTENER HOLE. INSTALLED NEW FASTENER AT INTERCOASTAL AND TREATED AND RESTORED ITS FINISHES AS PER DWG 147A7500 AND SRM-51-40-02-0G-0 SRM-51-20-01-0G-0.

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