Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
December 11, 2023
Submitted
January 10, 2024
Operation
Air carrier
Aircraft
N8557Q
Make and model
Boeing 7378H4
Aircraft serial
63582
Aircraft time
20,011 hours, 10,087 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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 ON INTERCOSTAL AT BS 949 LBL 25 WL 208 COMMON TO I/B LAV D HARDPOINT FITTING(MARKED)<[01] REMOVED AND REPLACED INTERCOSTAL BS 949 LBL 25 WL 208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 147A5650;[02] VERIFIED CORRECTIVE ACTION 1 AND MEASEUREMENT TABLE.

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