Service difficulty report · None · Boeing 73776N

Difficulty date
August 24, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
59,949 hours, 29,584 cycles
Part
None
Condition
Corroded
Location
Fuselage
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 BS 986 FLOOR BEAM UPPER CHORD RBL 44 WL 208 ; / [01] REMOVED CORROSION ON BS986 FLOOR BEAM UPPER CHORD RBL44 WL208 IN AREA OF 0.9' BY 1.1' BY A DEPTH OF 0.065' PER SRM 51-10-02-0G-0 AND SRM 53-70-51-1A-1. OUT OF LIMITS PER SRM 53-70-51-1A-1.; [02] VERIFIED REMOVED CORROSION ON BS986 FLOOR BEAM UPPER CHORD RBL44 WL208 IN AREA OF 0.9' BY 1.1' BY A DEPTH OF 0.065' PER SRM 51-10-02-0G-0 AND SRM 53-70-51-1A-1. OUT OF LIMITS PER SRM 53-70-51-1A-1.; [03] REMOVED ANGLE UNDER MOPSILL BS 986-1001 RBL 44 WL 207 FOR ACCESS PER SRM 51-40-02-0G-0.; [04] REMOVED ANGLE UNDER MOPSILL BS 967-986 RBL 48 WL 207 FOR ACCESS PER SRM 51-40-02-0G-0.; ALL I.A.W 53-70-51-2R-4 STEP 4.G-4.M.OK TO INSTALL.; [13] FABRICATED REPAIR PARTS ITEMS(1)T-CHORD1EA;(2)ANGLE 2EA;(3)ANGLE 2EA;(4)STRAP 2EA;PARTS OBTAINED FROM SOUTHWEST KIT BS986 SI#7530799;APPLIED CHEMICAL CONVERSION COATING AND PRIMED REPAIR PARTS AND BARE SURFACE OF THE REWORKED AREAS ALL I.A.W SRM 53-70-51-2R-4 STEP 4.G-4.M.OK TO INSTALL; [INSTALLED INTERCOSTAL, ITEM(8)2EA CORNER FITTINGS, ITEM (6) FILLERS 2EA BS986-1006 RBL38 WL208-WL200 I.A.W SRM 53-70-51-2R-4 STEP 4.N,O AND BOEING DWG 147A5730

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