Service difficulty report · Support · Boeing 7377H4

Difficulty date
August 11, 2021
Submitted
August 31, 2021
Operation
Air carrier
Aircraft
N965WN
Make and model
Boeing 7377H4
Aircraft serial
36677
Aircraft time
32,936 hours, 20,041 cycles
Part
Support
Condition
Corroded
Location
Fwd Cargo
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 FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 480 TO BS 500D LBL 25 WL 156 ; / REMOVED FCB L/H FLOOR TO SIDE WALL SUPPORT IAW SRM 51-40-02REMOVED CORROSION FROM FCB LH FLOOR TO SIDEWALL SUPPORT AT MULTIPLE SPOTS; DEEPEST SPOT AT BS 462 IN AN AREA OF L=1' X W=1' X D=.038' REMOVED CORROSION ON FWD CARGO BAY L/H FLOOR TO SIDEWALL SUPPORT IN A 114'L X 1' W X .005' AREA FROM ORIGINAL THICKNESS OF .040. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2. PINPOINT MICROMETER ID ATS1672 SN 65092939 FABRICATED FCB L/H FLOOR TO SIDEWALL SUPPORT BS 396 TO BS 500D FROM MATERIAL BAC1496-<BR>444#7075T62 LOT : 1466234-1.<BR>FABRICATED SPLICE B/N BS 480 TO BS 500 FROM MATERIAL BAC1496-444#7075T62 LOT : 1466234-1.<BR>APPLIED CHEMICAL CONVERSION COATING PER SRM 53-00-53-2R-6APLLIED PRIMER ON FCB L/H FLOOR TO SIDEWALL SUPPORT BS 396 TO 500D AND SPLICE REPAIR IAW. SRM 51-20-01-0G-0 . OK TO INSTALL SPLICE REPAIR BS 480 TO BS 500.;] INSTALLED SPLICE REPAIR ON FCB L/H FLOOR TO SIDEWALL SUPPORT BS 480 TO 500 IAW. SRM 53-00-53-2R-6 INSTALLED FCB L/H FLOOR TO SIDEWALL SUPPORT BS 396 TO 500D IAW. DWG:143A7500

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