Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
July 27, 2023
Submitted
August 23, 2023
Operation
Air carrier
Aircraft
N902WN
Make and model
Boeing 7377H4
Aircraft serial
36615
Aircraft time
51,130 hours, 29,802 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

CABIN FLOOR INTERCOSTAL UPPER SURFACE HAS CORROSION PIT BS 294.1+11 LBL 11. 8-57<[01] REMOVED CORROSION AT CABIN INTERCOSTAL UPPER SURFACE;FWD WET AREA.BS 294.1 +11;LBL 11 PER B 737-700 SRM 51-10-02-0G-0;[02] REMOVED CORROSION AT MAIN CABIN FWD WET AREA INTERCOSTAL ON STA BS 294.1 + 11 LBL 11 PER B737-700 SRM 51-10-02-0G-0; FOUND OUT LIMITS REWORKED AREA PER SRM 53-10-51-1A-1. REMOVED AND REPLACED INTERCOSTAL PER SRM 51-40-02-0G-0 AND DRAWING 141A5600;[03] CERTIFIED WORK STEPS PERFOMED.

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