Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
June 23, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
39,596 hours, 24,067 cycles
Part
Support Angle
Condition
Corroded
Location
Bs 316-338
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 FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE BS 316 -338 LBL 60 WL 208. ; / [01] REMOVED CORROSION ON FWD ENTRY DOOR I/B SUPPORT ANGLE STA 316-338; LBL 60; WL 208. MAX MATERIAL REMOVED WAS .014'; 22' BY 1' FROM .080' OUT OF LIMITS PER SRM 51-10-02-0G-0; SRM 53-10-15-1A-1.; [02] UPDATED MEASUREMENTS; [03] VERIFIED CORROSION REMOVAL OUT OF LIMITS PER SRM 51-10-02 AND SRM 53-10-15-1A-1; [04] REMOVED DAMAGED FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE STA 316-338; LBL 60; WL 208 PER SRM 51-40-02-0G-0.; [05] LOCATED AND DRILLED NEW FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE FOR STA 316-338 LBL 60 WL 208 IAW SRM 51-40-05-0G-0 OK TO INSTALL; [06] VERIFIED CORRECTIVE ACTION ITEMS 4 AND 5. 0K TO INSTALL; [07] INSTALLED FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE AT STA 316-338 LBL 60 WL 208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A8110; [08] VERIFIED INSTALLATION OF FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE AT STA 316-338 LBL 60 WL 208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A8110; [09] APPLIED FILLET SEAL TO FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE AT BS 316-338 LBL 60 WL 208 IAW AMM 51-31-00-390-804; [10] VERIFIED CORRECTIVE ACTION ITEM 9; [11] VERIFIED REMOVAL AND INSTALLATION OF FWD ENTRY DOOR I/B THRESHOLD SUPPORT ANGLE AT STA 316-338 LBL 60 WL 208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A8110 IS COMPLETE

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