Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
January 20, 2025
Submitted
February 28, 2025
Operation
Air carrier
Aircraft
N8608N
Make and model
Boeing 7378H4
Aircraft serial
36638
Aircraft time
40,188 hours, 19,212 cycles
Part
Intercostal
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

MAIN CABIN FWD WET AREA INTERCOSTA AT STA.294.5-312 BL0 IS CORR0DED <[01]. REMOVED DAMAGE; ORIG. .063; MATERIAL LOSS .063; REMAINING 0.0; FOUND TO BE OUT OF LIMITS REF B737-NG SRM 53-10-51-1A-1 FIG 105 DETAIL A; REMOVED ALL FASTENERS COMMON TO INTERCOSTAL IAW B737-800 SRM 51-40-02; LOCATED AND DRILLED NEW INTERCOSTAL IAW B737-800 SRM 51-40-06 AND BOEING DWG 141A5600 REV: N. ; INSTALLED NEW INTERCOSTAL P/N 141A5690U1 P.O#0; AT STA.294.5-312 BL0; REF. B737-800 SRM 51-40-02; BOEING DWG 141A5600 REV: N.; [02] VERIFIED REMOVED DAMAGE; ORIG. .063; MATERIAL LOSS .063; REMAINING 0.0; FOUND TO BE OUT OF LIMITS REF B737-NG SRM 53-10-51-1A-1 FIG 105 DETAIL A; REMOVED ALL FASTENERS COMMON TO INTERCOSTAL IAW B737-800 SRM 51-40-02; LOCATED AND DRILLED NEW INTERCOSTAL IAW B737-800 SRM 51-40-06 AND BOEING DWG 141A5600 REV: N. ; INSTALLED NEW INTERCOSTAL P/N 141A5690U1 P.O#0; AT STA.294.5-312 BL0; REF. B737-800 SRM 51-40-02; BOEING DWG 141A5600 REV: N.;[03] VERIFIED REMOVED DAMAGE; ORIG. .063; MATERIAL LOSS .063; REMAINING 0.0; FOUND TO BE OUT OF LIMITS REF B737-NG SRM 53-10-51-1A-1 FIG 105 DETAIL A; REMOVED ALL FASTENERS COMMON TO INTERCOSTAL IAW B737-800 SRM 51-40-02; LOCATED AND DRILLED NEW INTERCOSTAL IAW B737-800 SRM 51-40-06 AND BOEING DWG 141A5600 REV: N. ; INSTALLED NEW INTERCOSTAL P/N 141A5690U1 P.O#0; AT STA.294.5-312 BL0; REF. B737-800 SRM 51-40-02; BOEING DWG 141A5600 REV: N.

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