SDR VGQY2010070200043

Service difficulty report · Doubler · Boeing 747243B

Difficulty date: January 7, 2010
Submitted: July 2, 2010
Operation: Air carrier
Filed by: VGQY082L
St Engineering Aerospace Services Company Pte. Ltd
Aircraft: N820SA
Make and model: Boeing 747243B
Aircraft serial: 23476
Aircraft time: 84,534 hours, 13,992 cycles
System (JASC): 5514 · Horizontal Stabilizer Miscellaneous Structure
Part: Doubler
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

RT HORZ STAB TIP AREA, MOST O/B RIB WEB LWR CHORD FOUND CRACK. REMOVED AND REPLACED EXISTING REPAIR DOUBLER PER SRM 52-30-06 REV 166, FIGURE 1. REPAIR DIMENSION: 12.50 INCH BY 6.00 INCH; INSPECTION THRESHOLD: 20,000 FLIGHT CYCLES FROM DELIVERY OF AIRPLANE; METHOD: DETAILED VISUAL INSPECTION INTERVAL: 3,000 FLIGHT CYCLES.