SDR DALA1123259878

Service difficulty report · Cusp Web · Doug DC951

Difficulty date: March 30, 2011
Submitted: March 31, 2011
Operation: Air carrier
Aircraft: N787NC
Make and model: Doug DC951
Aircraft serial: 48149
Aircraft time: 67,736 hours, 61,525 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Cusp Web
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 STA 712 LEFT SIDE CUSP WEB CRACKED APPROX 3 INCHES UNDER HORSE SHOE COLLAR 2EA PLACES. REMOVED DAMAGED WEB (20"X 15") BETWEEN STA 712 TO 692. FABRICATED WEB FROM .020 7075-T6. FABRICATED 4 EA DOUBLER RINGS FROM .050 7075-T6, 4 EACH RINGS FROM .063 7075-T6. INSTALLED WEB, 8 EARINGS. RESTORED AREA IAW DC-9 SRM 51-30-2, SRM 51-30-5, SRM 51-10-2 SRM 51-10-4 AND DWG SG 09530019.

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