SDR DALA1122509870

Service difficulty report · Longeron · Doug DC951

Difficulty date: March 25, 2011
Submitted: March 28, 2011
Operation: Air carrier
Aircraft: N779NC
Make and model: Doug DC951
Aircraft serial: 48101
Aircraft time: 71,333 hours, 66,584 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Longeron
Condition: Cracked
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 CABIN STATION 200 LONGERON L2L CRACKED. REMOVED 32 INCHES OF L2L & 2 EA SPLICES. REMOVED CENTER AC DUCT STA 180 FOR ACCESS. RECEIVED NEW CAST FORM MAT P/N S2777922-3, LOCATE, DRILL, TRIM, DEBURRED, TREAT, PRIME & INSTALL IAW SRM 51-10-2, 51-30-2, 51-30-5, 53-13-1 ,51-10-4 AMM 20-11-00. INSTALLED CENTER UPPER AC DUCT IAW AMM 20-11-00.

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