SDR DALA1129689875

Service difficulty report · Spar · Doug DC951

Difficulty date: April 27, 2011
Submitted: April 28, 2011
Operation: Air carrier
Aircraft: N784NC
Make and model: Doug DC951
Aircraft serial: 48109
Aircraft time: 71,726 hours, 65,746 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Spar
Condition: Cracked
Location: Horizontal Stab
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 HORIZ STABILIZER FRONT SPAR WEB WITH CRACK AT STA XFS 77.5. STOP DRILLED CRACK ON LT HORIZ STAB FRONT SPAR WEB AT STA XFS 77.5 IAW SRM 55-01, PG 9, FIG 2. FABRICATED DOUBLER REPAIR IAW SRM 55-01, PG 9, FIG 2. TREATED AND PRIMED DOUBLER REPAIR IAW SRM 51-10-3, PG 40 & PG 21 INST DOUBLER REPAIR ON LT HORIZ STABILIZER FRONT SPAR WEB AT STA77.5 IAW SRM 55-01 PG 9, FIG 2. INST ID TAG IAW PS.

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