SDR UPS04843579

Service difficulty report · Rib · Doug DC871F

Difficulty date: November 19, 2004
Submitted: December 6, 2004
Operation: Air carrier
Aircraft: N744UP
Make and model: Doug DC871F
Aircraft serial: 45944
Aircraft time: 75,722 hours, 49,419 cycles
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Cracked
Location: Lt Wing
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

LT WING CENTER L/E RIB CRACKED AT XW429 UPPER RIB. STOP DRILLED CRACK, NDT VERIFIED TERMINATION PER SPM 06-10-01.001. FABRICATED STACKED ANGLE REPAIR DOUBLERS FROM SHT7075T6/.040 AND .050 THICK REF SRM 57-3-1 FIG 4 ITEM C, 57-2-0 FIG2. INSTALLED PARTS REF SRM 51-1-20D, 51-1-8, 57-2-0.

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