Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
June 27, 2021
Submitted
August 5, 2021
Operation
Air carrier
Aircraft
N750SA
Make and model
Boeing 7377H4
Aircraft serial
29802
Aircraft time
75,691 hours, 44,551 cycles
Part
Stringer
Condition
Cracked
Location
Bs 536 S27l
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

FCB STR-27L CRACKED IN DISTRIBUTION BAY AT BS 536 (MARKED) ; / [01] EVALUATED CRACK MEASUREMENTS ON FCB STRINGER 27L BS 536. STRINGER DAMAGE FOUND TO BE OUT OF LIMITS I.A.W SRM 53-00-03-1A-1 FIGURE 103; DETAIL A.; STRINGER DAMAGE FOUND TO BE OUT OF LIMITS I.A.W SRM 53-00-03-1A-1 FIGURE 103; DETAIL A. REPAIR BS 536; STRINGER 27L.; [04] VERIFIED SRM 53-00-03-2R REPAIR 2 IS APPLICABLE FOR STRINGER REPAIR BS 536; STRINGER 27L.BS 500D+12' TO BS 536; STR 27L. PER SRM 51-10-02. SRM 51-40-02; [10] COMPLETED STEP 1; [11] RECEIVED STRINGER SECTION P/N: HFAB53-SN-011; PO: 830383 AND ANGLE P/N: HFAB53-AN-011; PO: 830381. FABRICATED STRINGER SECTION FROM 7075-T62#0.056' BARET LOT: 1463545-1 AND ANGLE FROM 7075-T62#0.063' CLAD LOT: 1463537-1. LOCATED AND DRILLED AND APPLIED CHEMICAL CONVERSION COATING TO REPAIR PARTS IAW SRM 53-00-03-2R-1 STEP FROM 4. D. TO 4.I. <BR>UPDATED P.O. 829218-SWA NUMBER. OK TO PRIME; [12] VERIFIED RECEIVING OF STRINGER SECTION P/N: HFAB53-SN-011; PO: 830383 AND ANGLE P/N: HFAB53-AN-011; PO: 830381 & FABRICATION OF STRINGER SECTION FROM 7075-T62#0.056' BARE LOT: 1463545-1 AND ANGLE FROM 7075-T62#0.063' CLAD LOT: 1463537-1. VERIFIED LOCATE; DRILL AND APPLICATION OF CHEMICAL CONVERSION COATING TO REPAIR PARTS IAW SRM 53-00-03-2R-1 STEPS 4. D. TO 4. I.

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