SDR SWAA2025070778542

Service difficulty report · Stringer · Boeing 7377H4

Difficulty date: June 5, 2025
Submitted: July 7, 2025
Operation: Air carrier
Aircraft: N443WN
Make and model: Boeing 7377H4
Aircraft serial: 29838
Aircraft time: 72,223 hours, 42,968 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Cracked
Location: Zone 200
Stage of operation: IN
How discovered: V
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

REF. TTG8Q012Z7GR CRACK INDICATION NOTED AT STR. 1 BETWEEN 727A +10 AND 727A +12 (FWD OF WIFI DOUBLER) HIGHEST READING NOTED OF 67 % FSH WITH PAINT.<[01] DAMAGED AREA WAS REMOVED; VERIFIED; AND REPLACED I.A.W. SRM 51-10-02; B737 NDT PART 6; 51-00-00 PROC 23 ; SRM 51-40-02-0G-0 ; EA 25-153-01544-WIP3 ; AMM 25-80-00-400-801 STEP 3.F;[02] REMOVED AND REPAIRED DAMAGE AT STR 1 BETWEEN STA 727A + 10' AND 727A +12' I/A/W EA 25-153-01544-WIP1 THRU WIP3 AND EA 25-153-01544;[03] AUDIT C/W

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