Service difficulty report · None · Boeing 7378H4

Difficulty date
August 24, 2022
Submitted
September 26, 2022
Operation
Air carrier
Aircraft
N8649A
Make and model
Boeing 7378H4
Aircraft serial
42527
Aircraft time
27,113 hours, 12,631 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 947 FLOORBEAM UPPER SURFACE FROM LBL 24-LBL 27; WL 208. / [01] UPDATED MEASUREMENTS. APPLICABILITY STATEMENT FOR ALLOWABLE DAMAGE PER SRM 53-70-51-1A-1. BLENDED CORROSION AT BS 947 LBL 24-LBL27 WL 208 AND THE DEEPEST REMOVED IS 1.0X0.5X0.035' FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1 FIGURE 104 NOTE C. <BR>ATS DEPTH GAGE<BR>ID:ATS2678<BR>DATE CAL: 04/2022<BR>CAL DUE DATE: 04/2024;[08] FABRICATED REPAIR PARTS; LOCATED; DRILLED; DEBURRED APPLIED CHEMICA CONVERSION COAT AND PRIMED NEW AND EXISTING PARTS BS947; LBL 1-LBL47; WL 208 ITEM (1) T-CHORD 1EA. MATERIAL USED BAC1505-101045 7075T6511 LOT# 5098115-1; ITEM (2) ANGLE 4EA. MATERIAL USED BAC1490-2885 7075T62 LOT#1495781-1; (3) STRAP 4EA. MATERIAL USED 7075T6 0.125' LOT#1469335-1; APPLIED FLAP PEEN TO CUT EDGES ON TRIM LINE AND CUT EDGES OF THE EXISTING AND NEW T-CHORD ALL I.A.W SRM 53-70-51-2R-5 REP. 5 ALT.2. PAR 4C(3); 4.E-K;[12] INSTALLED REPAIR PARTS LISTED ON CORRECTIVE ACTION 8 EXCEPT AREAS T-CHORD COMMON TO INTERCOSTAL AND STIFFENER ALL I.A.W SRM 53-70-51-2R-5 REP. 5 ALT.2. PAR 4.L;[15] FABRICATED ITEM 4 FILLER 2EA FROM 7075-T6 0.100 C. LOT # 1489800-1 ALL I.A.W SRM 53-70-51-2R-5 REP. 5 ALT 2. PAR 4.E-K;[20] COMPLETED REPAIR ON BS947 FLOOR BEAM LBL 1-LBL47; WL 208 ALL I.A.W SRM 53-70-51-2R-5 REP. 5 ALT 2.;[21] VERIFIED CORRECTIVE ACTION 20;[22] VERIFIED MEASUREMENT TABLE

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