SDR DALA1114309877

Service difficulty report · Doubler · Doug DC951

Difficulty date: February 15, 2011
Submitted: March 1, 2011
Operation: Air carrier
Aircraft: N786NC
Make and model: Doug DC951
Aircraft serial: 48148
Aircraft time: 68,643 hours, 62,328 cycles
System (JASC): 5414 · Nacelle/Pylon, Plate/Skin
Part: Doubler
Condition: Cracked
Location: Nr 1 Pylon
Stage of operation: IN
How discovered: 9
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

NR 1 PYLON APRON LOWER AFT AREA FWD OF AFT ENGINE MOUNT, INTERNAL DOUBLER CRACKED AT LWR RADIUS 60-11. REMOVED DOUBLER IAW SRM 51-30-2, PG 24, PARA 1. FABRICATED DOUBLER IAW SRM 54-01, PG 10, FIG 2. TREATED AND PRIMED DOUBLER IAW DC9 SRM 51-10-3, PG 40, PARA 21 AND SRM 51-10-3, PG 31, PAR 14. INSTALLED DOUBLER IAW SRM 51-30-2, PG 24, PARA 7.

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