SDR WRLA20110510483

Service difficulty report · Doubler · Boeing 7474H6

Difficulty date: May 10, 2011
Submitted: May 20, 2011
Operation: Air carrier
Aircraft: N740WA
Make and model: Boeing 7474H6
Aircraft serial: 25700
Aircraft time: 71,044 hours, 9,386 cycles
Engine: Pwa PW4056
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Doubler
Condition: Cracked
Location: Sta 1220
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

MANUFACTURED DOUBLER BS 1220 RT SIDE SHEAR TENSION TIE UPPER AREA FRAME WEB 2 INCH CRACK. TRIM OUT CRACK STA 1220 IAW SRM 53-40-07 HFEC AREA NO CRACKS FOUND IAW SRM 51-00-00 FIG 3 PG 6. FABRICATED PARTS IAW SRM 53-40-07 FIG 201. INSTALLED PER SRM 53-40-07 FIG 201 DOUBLER WEB.

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