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 S23l
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-23L CRACKED IN DISTRIBUTION BAY AT BS 536 (MARKED) ; / [01] EVALUATED CRACK MEASUREMENTS ON FCB STRINGER 23L BS 536. STRINGER DAMAGE FOUND TO BE OUT OF LIMITS I.A.W SRM 53-00-03-1A-1 FIGURE 103; DETAIL A.; [02] UPDATED MEASUREMENTS PARAMETERS.; [03] VERIFIED ITEMS 1-2.; [04] VERIFIED; EVALUATED CRACK MEASUREMENTS ON FCB STRINGER 23L BS 536. STRINGER DAMAGE FOUND TO BE OUT OF LIMITS I.A.W SRM 53-00-03-1A-1 FIGURE 103; DETAIL A.; [05] CUT AND REMOVED DAMAGED STRINGER SECTION BETWEEN BS 500D+10' TO BS 536; STR 23L. PER SRM 51-10-02.; [06] REMOVED STR CLIP FROM BS500+20 STR 23L IAW 51-40-02; [07] REMOVED DAMAGE FROM COMPOSITE DOUBLER IAW SRM 51-10-12; [08] REMOVED STR CLIP FROM BS500+20 STR 23L IAW SRM 51-40-02; [09] SRM ADD VERIFIED; [10] VERIFIED CUT AND REMOVED DAMAGED STRINGER SECTION BETWEEN BS 500D+10' TO BS 536; STR 23L. PER SRM 51-10-02; [11] VERIFIED REMOVED DAMAGE FROM COMPOSITE DOUBLER IAW SRM 51-10-12; [12] INSTALLED EWIS PROTECTION BS500-536 BL0-STR 22 IAW 20-60-07-913-801; [13] ACCOMPLISHED STEP 1 AND 2.; [14] REMOVED STR CLIP FROM BS520 STR 23L IAW 51-40-02;

More about the Boeing 737-7H4