SDR FY4Y20121122197

Service difficulty report · Web · Boeing 727200

Difficulty date: November 19, 2012
Submitted: November 22, 2012
Operation: General aviation
Aircraft: N705AA
Make and model: Boeing 727200
Aircraft serial: 22462
Aircraft time: 65,509 hours, 30,805 cycles
Engine: Pwa JT8D217
System (JASC): 5710 · Wing Main, Frame Structure
Part: Web
Part number: 65192923
Condition: Corroded
Location: Fuel Cell
Part time: 65,509 hours, 30,805 cycles
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

DURING PERFORMED 7C CHECK, CORROSION WAS FOUND ON CENTER FUEL TANK AFT VERTICAL WEB AT STATION BS 865, LBL 38, 39,WL 165-168 (DIMENSIONS OF CORROSION AREA:2 .3750" × 1.5"). AFTER BLEND OUT CORROSION, THE PENETRATION DEPTH WAS OVER LIMIT IAW SRM 57-10-01, PAGE 11 (REMAIN DEPTH:0.031", ORIGINAL DEPTH:0.056).

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