Service difficulty report · Intercostal · Boeing 737990ER

Difficulty date
June 26, 2024
Submitted
July 2, 2024
Operation
Air carrier
Aircraft
N409AS
Make and model
Boeing 737990ER
Aircraft serial
41733
Aircraft time
41,329 hours, 13,084 cycles
Part
Intercostal
Part number
146A750512
Condition
Corroded
Location
Bs 747-767
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

AFTER REMOVAL OF RH AFT CARGO TRANSITION PANEL FOR INTERCOSTAL CORRODED AT STA 747 TO 767, MARKED. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW B737-900ER SRM 51-40-02-0G-0W-1" O-.032 R-.028 L-4" D-.004.