SDR FDEA201209053232

Service difficulty report · Stiffener · Boeing 757230

Difficulty date: September 5, 2012
Submitted: September 6, 2012
Operation: Air carrier
Aircraft: N998FD
Make and model: Boeing 757230
Aircraft serial: 24747
Aircraft time: 65,431 hours, 22,121 cycles
Engine: Pwa PW2040
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Part number: 146N1036
Condition: Corroded
Location: Bs 1600 S16-17l
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

MAIN DECK CARGO FRAME STIFFENER AT BS 1600, STR 16L-17L, HAS CORROSION. REMOVED CORROSION, ORIGINIAL THICKNESS .100, REMAINING THICKNESS .080, MATERIAL LOST .020. FOUND OUT OF LIMITS IAW SRM 53-00-07 FIG 101, SH3 DETAIL I AND II AND SRM 51-10-02. REMOVED DAMAGE FRAME STIFFENER IAW SRM 51-40-02. LOCATED AND INSTALLED NEW PART IAW SRM 51-40-02 AND DWG 146N1021. THIS REPAIR IS CLASSIFIED AS A MAJOR REPAIR.