SDR FY4Y201211130001

Service difficulty report · Structure · Boeing 727200

Difficulty date: November 13, 2012
Submitted: November 14, 2012
Operation: General aviation
Aircraft: N705AA
Make and model: Boeing 727200
Aircraft serial: 22462
Aircraft time: 65,509 hours, 30,805 cycles
System (JASC): 2810 · Fuel Storage
Part: Structure
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 LOWER EDGE AT STATION BS 865, LBL 54, WL 169 TO LBL 58 WL 171 ( DIMENSIONS OF CORROSION AREA:3.7500" × 1.7500"). AFTER BLEND OUT CORROSION, THE PENETRATION DEPTH (0.280") WAS OVER LIMIT IAW SRM 53-00-00, PAGE 00. THE ITEM HAS BEEN REPORTED TO DER FOR REQUESTING THE REPAIR APPROVAL DATA.

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