SDR SWAA2021110119243

Service difficulty report · Frame · Boeing 7377H4

Difficulty date: September 19, 2021
Submitted: November 1, 2021
Operation: Air carrier
Aircraft: N414WN
Make and model: Boeing 7377H4
Aircraft serial: 29820
Aircraft time: 67,826 hours, 39,808 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
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

CRACK FRAME ON BS500A BTW STR8R TO STR9R AT PASSENGER CABIN. MEASURE OF CRACK IS L: 0.137 INCH. EVALUATED ALLOWABLE DAMAGE LIMITS FOR CRACK IS OUT LIMITS IAW SRM 53-00-07-1A-1, FIG 102, DETAILS A, B AND E. PERFORMED HAND LAYOUT ON REPAIR AREA IAW EA 1-A53-12114. PERFORMED PERMANENT RAPAIR FRAME IAW EA E/A 1-A53-12114 REV 7.

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