SDR TWAA0007704

Service difficulty report · Rib · Doug DC932

Difficulty date: May 9, 2000
Submitted: May 17, 2000
Operation: Air carrier
Aircraft: N921L
Make and model: Doug DC932
Aircraft serial: 47107
Aircraft time: 80,344 hours, 86,616 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Condition: Cracked
Location: Horizontal Stab
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 OP 16 MAINT CHECK ON LT HORIZ STAB LEADING EDGE ASSEMBLY, NUMBER 1 LEADING EDGE RIB, I/B END WAS CRACKED ON BOTTOM TRAILING EDGE, NUMBER 1 FROM I/B END. ACCOMP HIGH FREQ EDDY CURRENT ON END OF CRACK FOR CONTAINMENT PER 51-00-03 PART 6 OF NDT MANUAL. STOP DRILLED CRACK AND INSTALLED REPAIR CLIP -9 PER SRM 55-02 FIG 18.

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