SDR DALA1125049871

Service difficulty report · Longeron · Doug DC951

Difficulty date: April 8, 2011
Submitted: April 12, 2011
Operation: Air carrier
Aircraft: N780NC
Make and model: Doug DC951
Aircraft serial: 48102
Aircraft time: 72,571 hours, 67,115 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Longeron
Condition: Damaged
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

MAIN PAX CABIN LONG 2R HAS MULTIPLE DRILL MARKS BETWEEN BS 237 AND BS 256. BLENDED OUT DRILL MARKS. ORIGINAL MATERIAL 0.375 ALLOWABLE MAT LOSS .187 MAT LOSS .245. FOUND TO BE OUT OF LIMITS IAW DC-9 SRM 53-01 FIG 1. REMOVED FASTENERS AND DAMAGED SECTION OF LONGERON IAW DC-9 SRM 51-30-2. REC NEW LONGERON PART NUMBER S2777922-1-265 AND NEW SPLICE PN NW9B53-35812-82. INST IAW DC9 SRM 51-30-251-30-2 AND 51-30-5.

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