SDR USAA2012050300009

Service difficulty report · Support · Boeing 7374B7

Difficulty date: April 6, 2012
Submitted: May 3, 2012
Operation: Air carrier
Aircraft: N427US
Make and model: Boeing 7374B7
Aircraft serial: 24549
Aircraft time: 61,145 hours, 40,839 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support
Part number: 6552878U97
Condition: Corroded
Location: Fuselage
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

Q1 CHECK - EXFOLIATION CORROSION ON SUPPORT CHORD AT L2 DOOR BETWEEN BS 959 TO BS 982, WL 207.5 & BETWEEN LBL 50 TO LBL 53. REPLACED SUPPORT CHORD AT L2 DOOR BETWEEN BS 959 TO BS 982, WL 207.5 & BETWEEN LBL 50 TO LBL 53 IAW B737 SRM 51-40-02-0G, FIGS 3, 4 & 12.

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