SDR CNMA20110011

Service difficulty report · Intercostal · Doug DC1030

Difficulty date: March 19, 2011
Submitted: May 4, 2011
Operation: Air carrier
Aircraft: N612AX
Make and model: Doug DC1030
Aircraft serial: 48290
Aircraft time: 72,427 hours, 11,822 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Corroded
Location: Bs 535-595
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

SUPPORT ANGLE AND INTERCOSTAL AT APPROX LONGERON 44L HAS AREAS OF CORROSION AND FASTENER HEADS POPPED FROM STA 535 TO 595. REPAIRED INTERCOSTAL IAW SRM VOL I 53-00-01, FIG 8, PG 27. REMOVED CORR IAW SRM VOL II 51-21-01, PG 28 AND REMOVED BAD FASTNER IAW SRM VOL II 51-35-01, PG 1. ACCOMPLISHED UT THICKNESS CHECK IAW NDT-SPM 04-00-03. NOMINAL THICKNESS .058, THICKNESS AFTER CLEAN UP .032, MAX MATERIAL.

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